{
  "county": {
    "county_name": "City and County of the City of London",
    "country": "England",
    "census_reference": "2021",
    "population_approx": 8500,
    "households_approx": 4800,
    "population_census_sum": 8482,
    "household_census_sum": 4751,
    "current_postcodes": 1597,
    "postcode_areas": 3,
    "postcode_districts": 27,
    "postcode_sectors": 102,
    "partly_covered_postcode_districts": 26,
    "partly_covered_postcode_sectors": 49,
    "area_km2": 3.1798904645,
    "population_density_per_km2": 2667.4,
    "current_postcodes_without_population": 1266,
    "current_postcodes_without_households": 1274,
    "county_index": 13,
    "county_id": "gbmaps:county:city-and-county-of-the-city-of-london",
    "county_slug": "city-and-county-of-the-city-of-london",
    "page_url": "https://www.gbmaps.com/free-county-maps/City_And_County_Of_the_City_Of_London.php",
    "geometry_sha256": "fe407c4080dc410de3ec0517e3a14db02c11e185017a26d308d0935da0b3543c",
    "postcode_records": 1598,
    "current_located_postcodes": 1597,
    "population_records": 332,
    "household_records": 324,
    "suppressed_population_records": 0,
    "suppressed_household_records": 0,
    "zero_population_records": 0,
    "zero_household_records": 0,
    "retired_or_directory_unmatched_census_postcodes": 1,
    "census_population_in_retired_or_unmatched_postcodes": 2,
    "source_census_years": "2021",
    "nearest_boundary_postcodes": 0,
    "overlapping_outline_postcodes": 0,
    "postcodes_within_100m_of_boundary": 300,
    "census_population_within_100m_of_boundary": 3201,
    "lower_quality_coordinate_postcodes": 1,
    "census_population_with_lower_quality_coordinates": 0,
    "mixed_census_year_postcodes": 0,
    "current_postcodes_with_population_pct": 20.7263619286,
    "current_postcodes_with_households_pct": 20.2254226675
  },
  "paragraphs": [
    "The mapped City and County of the City of London area has approximately 8,500 residents and 4,800 households, based on census counts allocated by postcode location. The figures use 2021 census data.",
    "The supplied directory places 1,597 current postcode locations in this county, representing 27 postcode districts and 102 postcode sectors. 49 of those sectors also have located postcodes outside the county. These counts describe postcode locations rather than complete postal boundaries.",
    "The postcode areas EC and WC account for 98.1% of the county's located current postcodes. Among the postcode districts represented, EC2Y contributes the largest census population within the mapped county, at approximately 3,300 residents."
  ],
  "postcode_areas": [
    {
      "county_name": "City and County of the City of London",
      "country": "England",
      "postcode_area": "EC",
      "current_postcodes": 1499,
      "population_census_sum": 7328,
      "household_census_sum": 4208,
      "located_postcode_share_pct": 42.213,
      "published_population_share_pct": 19.68,
      "published_household_share_pct": 22.677,
      "coverage_by_located_postcodes": "Part of located current postcodes",
      "census_reference": "2021",
      "county_index": 13,
      "postcode_records": 1500,
      "current_located_postcodes": 1499,
      "population_records": 299,
      "household_records": 292,
      "current_postcodes_without_population": 1201,
      "current_postcodes_without_households": 1208,
      "suppressed_population_records": 0,
      "suppressed_household_records": 0,
      "zero_population_records": 0,
      "zero_household_records": 0,
      "retired_or_directory_unmatched_census_postcodes": 1,
      "census_population_in_retired_or_unmatched_postcodes": 2,
      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
      "mapped_counties_with_current_postcodes": 2,
      "whole_area_current_postcodes": 3551,
      "whole_area_current_located_postcodes": 3551,
      "whole_area_population_census_sum": 37236.0,
      "whole_area_household_census_sum": 18556.0,
      "whole_area_suppressed_population_records": 0,
      "whole_area_suppressed_household_records": 0,
      "other_current_located_postcodes": 2052
    },
    {
      "county_name": "City and County of the City of London",
      "country": "England",
      "postcode_area": "WC",
      "current_postcodes": 67,
      "population_census_sum": 115,
      "household_census_sum": 65,
      "located_postcode_share_pct": 2.641,
      "published_population_share_pct": 0.374,
      "published_household_share_pct": 0.484,
      "coverage_by_located_postcodes": "Part of located current postcodes",
      "census_reference": "2021",
      "county_index": 13,
      "postcode_records": 67,
      "current_located_postcodes": 67,
      "population_records": 15,
      "household_records": 15,
      "current_postcodes_without_population": 52,
      "current_postcodes_without_households": 52,
      "suppressed_population_records": 0,
      "suppressed_household_records": 0,
      "zero_population_records": 0,
      "zero_household_records": 0,
      "retired_or_directory_unmatched_census_postcodes": 0,
      "census_population_in_retired_or_unmatched_postcodes": 0,
      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
      "mapped_counties_with_current_postcodes": 2,
      "whole_area_current_postcodes": 2537,
      "whole_area_current_located_postcodes": 2537,
      "whole_area_population_census_sum": 30711.0,
      "whole_area_household_census_sum": 13422.0,
      "whole_area_suppressed_population_records": 0,
      "whole_area_suppressed_household_records": 0,
      "other_current_located_postcodes": 2470
    },
    {
      "county_name": "City and County of the City of London",
      "country": "England",
      "postcode_area": "E",
      "current_postcodes": 31,
      "population_census_sum": 1039,
      "household_census_sum": 478,
      "located_postcode_share_pct": 0.182,
      "published_population_share_pct": 0.093,
      "published_household_share_pct": 0.116,
      "coverage_by_located_postcodes": "Part of located current postcodes",
      "census_reference": "2021",
      "county_index": 13,
      "postcode_records": 31,
      "current_located_postcodes": 31,
      "population_records": 18,
      "household_records": 17,
      "current_postcodes_without_population": 13,
      "current_postcodes_without_households": 14,
      "suppressed_population_records": 0,
      "suppressed_household_records": 0,
      "zero_population_records": 0,
      "zero_household_records": 0,
      "retired_or_directory_unmatched_census_postcodes": 0,
      "census_population_in_retired_or_unmatched_postcodes": 0,
      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
      "mapped_counties_with_current_postcodes": 3,
      "whole_area_current_postcodes": 17024,
      "whole_area_current_located_postcodes": 17024,
      "whole_area_population_census_sum": 1117905.0,
      "whole_area_household_census_sum": 412369.0,
      "whole_area_suppressed_population_records": 0,
      "whole_area_suppressed_household_records": 0,
      "other_current_located_postcodes": 16993
    }
  ],
  "postcode_districts": [
    {
      "county_name": "City and County of the City of London",
      "country": "England",
      "postcode_district": "EC2Y",
      "current_postcodes": 86,
      "population_census_sum": 3323.0,
      "household_census_sum": 1991.0,
      "located_postcode_share_pct": 96.629,
      "published_population_share_pct": 100.0,
      "published_household_share_pct": 100.0,
      "coverage_by_located_postcodes": "Part of located current postcodes",
      "census_reference": "2021",
      "county_index": 13,
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      "current_located_postcodes": 86,
      "population_records": 45,
      "household_records": 45,
      "current_postcodes_without_population": 41,
      "current_postcodes_without_households": 41,
      "suppressed_population_records": 0,
      "suppressed_household_records": 0,
      "zero_population_records": 0,
      "zero_household_records": 0,
      "retired_or_directory_unmatched_census_postcodes": 0,
      "census_population_in_retired_or_unmatched_postcodes": 0,
      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
      "mapped_counties_with_current_postcodes": 2.0,
      "whole_district_current_postcodes": 89,
      "whole_district_current_located_postcodes": 89,
      "whole_district_population_census_sum": 3323.0,
      "whole_district_household_census_sum": 1991.0,
      "whole_district_suppressed_population_records": 0,
      "whole_district_suppressed_household_records": 0,
      "other_current_located_postcodes": 3
    },
    {
      "county_name": "City and County of the City of London",
      "country": "England",
      "postcode_district": "E1",
      "current_postcodes": 31,
      "population_census_sum": 1039.0,
      "household_census_sum": 478.0,
      "located_postcode_share_pct": 2.045,
      "published_population_share_pct": 1.315,
      "published_household_share_pct": 1.697,
      "coverage_by_located_postcodes": "Part of located current postcodes",
      "census_reference": "2021",
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      "current_located_postcodes": 31,
      "population_records": 18,
      "household_records": 17,
      "current_postcodes_without_population": 13,
      "current_postcodes_without_households": 14,
      "suppressed_population_records": 0,
      "suppressed_household_records": 0,
      "zero_population_records": 0,
      "zero_household_records": 0,
      "retired_or_directory_unmatched_census_postcodes": 0,
      "census_population_in_retired_or_unmatched_postcodes": 0,
      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
      "mapped_counties_with_current_postcodes": 2.0,
      "whole_district_current_postcodes": 1516,
      "whole_district_current_located_postcodes": 1516,
      "whole_district_population_census_sum": 79009.0,
      "whole_district_household_census_sum": 28172.0,
      "whole_district_suppressed_population_records": 0,
      "whole_district_suppressed_household_records": 0,
      "other_current_located_postcodes": 1485
    },
    {
      "county_name": "City and County of the City of London",
      "country": "England",
      "postcode_district": "EC1A",
      "current_postcodes": 100,
      "population_census_sum": 936.0,
      "household_census_sum": 571.0,
      "located_postcode_share_pct": 60.606,
      "published_population_share_pct": 72.727,
      "published_household_share_pct": 91.214,
      "coverage_by_located_postcodes": "Part of located current postcodes",
      "census_reference": "2021",
      "county_index": 13,
      "postcode_records": 100,
      "current_located_postcodes": 100,
      "population_records": 38,
      "household_records": 37,
      "current_postcodes_without_population": 62,
      "current_postcodes_without_households": 63,
      "suppressed_population_records": 0,
      "suppressed_household_records": 0,
      "zero_population_records": 0,
      "zero_household_records": 0,
      "retired_or_directory_unmatched_census_postcodes": 0,
      "census_population_in_retired_or_unmatched_postcodes": 0,
      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
      "mapped_counties_with_current_postcodes": 2.0,
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      "whole_district_current_located_postcodes": 165,
      "whole_district_population_census_sum": 1287.0,
      "whole_district_household_census_sum": 626.0,
      "whole_district_suppressed_population_records": 0,
      "whole_district_suppressed_household_records": 0,
      "other_current_located_postcodes": 65
    },
    {
      "county_name": "City and County of the City of London",
      "country": "England",
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      "population_census_sum": 730.0,
      "household_census_sum": 351.0,
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      "published_population_share_pct": 18.393,
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      "coverage_by_located_postcodes": "Part of located current postcodes",
      "census_reference": "2021",
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      "current_located_postcodes": 21,
      "population_records": 16,
      "household_records": 15,
      "current_postcodes_without_population": 5,
      "current_postcodes_without_households": 6,
      "suppressed_population_records": 0,
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      "zero_population_records": 0,
      "zero_household_records": 0,
      "retired_or_directory_unmatched_census_postcodes": 0,
      "census_population_in_retired_or_unmatched_postcodes": 0,
      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
      "mapped_counties_with_current_postcodes": 2.0,
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      "whole_district_current_located_postcodes": 174,
      "whole_district_population_census_sum": 3969.0,
      "whole_district_household_census_sum": 2018.0,
      "whole_district_suppressed_population_records": 0,
      "whole_district_suppressed_household_records": 0,
      "other_current_located_postcodes": 153
    },
    {
      "county_name": "City and County of the City of London",
      "country": "England",
      "postcode_district": "EC4V",
      "current_postcodes": 109,
      "population_census_sum": 575.0,
      "household_census_sum": 302.0,
      "located_postcode_share_pct": 98.198,
      "published_population_share_pct": 100.0,
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      "coverage_by_located_postcodes": "Part of located current postcodes",
      "census_reference": "2021",
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      "current_located_postcodes": 109,
      "population_records": 31,
      "household_records": 30,
      "current_postcodes_without_population": 78,
      "current_postcodes_without_households": 79,
      "suppressed_population_records": 0,
      "suppressed_household_records": 0,
      "zero_population_records": 0,
      "zero_household_records": 0,
      "retired_or_directory_unmatched_census_postcodes": 0,
      "census_population_in_retired_or_unmatched_postcodes": 0,
      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
      "mapped_counties_with_current_postcodes": 2.0,
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      "whole_district_current_located_postcodes": 111,
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      "whole_district_household_census_sum": 302.0,
      "whole_district_suppressed_population_records": 0,
      "whole_district_suppressed_household_records": 0,
      "other_current_located_postcodes": 2
    },
    {
      "county_name": "City and County of the City of London",
      "country": "England",
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      "population_census_sum": 380.0,
      "household_census_sum": 252.0,
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      "census_reference": "2021",
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      "current_located_postcodes": 107,
      "population_records": 24,
      "household_records": 23,
      "current_postcodes_without_population": 83,
      "current_postcodes_without_households": 84,
      "suppressed_population_records": 0,
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      "zero_population_records": 0,
      "zero_household_records": 0,
      "retired_or_directory_unmatched_census_postcodes": 0,
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      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
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      "whole_district_current_located_postcodes": 110,
      "whole_district_population_census_sum": 380.0,
      "whole_district_household_census_sum": 252.0,
      "whole_district_suppressed_population_records": 0,
      "whole_district_suppressed_household_records": 0,
      "other_current_located_postcodes": 3
    },
    {
      "county_name": "City and County of the City of London",
      "country": "England",
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      "population_census_sum": 320.0,
      "household_census_sum": 185.0,
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      "published_population_share_pct": 100.0,
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      "coverage_by_located_postcodes": "Part of located current postcodes",
      "census_reference": "2021",
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      "current_located_postcodes": 75,
      "population_records": 18,
      "household_records": 18,
      "current_postcodes_without_population": 58,
      "current_postcodes_without_households": 58,
      "suppressed_population_records": 0,
      "suppressed_household_records": 0,
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      "zero_household_records": 0,
      "retired_or_directory_unmatched_census_postcodes": 1,
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      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
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      "whole_district_current_located_postcodes": 78,
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      "other_current_located_postcodes": 3
    },
    {
      "county_name": "City and County of the City of London",
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      "household_census_sum": 128.0,
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      "published_population_share_pct": 80.571,
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      "census_reference": "2021",
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      "household_records": 13,
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      "current_postcodes_without_households": 62,
      "suppressed_population_records": 0,
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      "zero_household_records": 0,
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      "census_population_in_retired_or_unmatched_postcodes": 0,
      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
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      "whole_district_current_postcodes": 81,
      "whole_district_current_located_postcodes": 81,
      "whole_district_population_census_sum": 350.0,
      "whole_district_household_census_sum": 158.0,
      "whole_district_suppressed_population_records": 0,
      "whole_district_suppressed_household_records": 0,
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    },
    {
      "county_name": "City and County of the City of London",
      "country": "England",
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      "population_census_sum": 228.0,
      "household_census_sum": 136.0,
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      "published_population_share_pct": 99.13,
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      "coverage_by_located_postcodes": "Part of located current postcodes",
      "census_reference": "2021",
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      "current_located_postcodes": 120,
      "population_records": 44,
      "household_records": 44,
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      "current_postcodes_without_households": 76,
      "suppressed_population_records": 0,
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      "zero_population_records": 0,
      "zero_household_records": 0,
      "retired_or_directory_unmatched_census_postcodes": 0,
      "census_population_in_retired_or_unmatched_postcodes": 0,
      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
      "mapped_counties_with_current_postcodes": 2.0,
      "whole_district_current_postcodes": 123,
      "whole_district_current_located_postcodes": 123,
      "whole_district_population_census_sum": 230.0,
      "whole_district_household_census_sum": 137.0,
      "whole_district_suppressed_population_records": 0,
      "whole_district_suppressed_household_records": 0,
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    },
    {
      "county_name": "City and County of the City of London",
      "country": "England",
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      "current_located_postcodes": 91,
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      "current_postcodes_without_households": 78,
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      "source_census_years": "2021",
      "county_slug": "city-and-county-of-the-city-of-london",
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    },
    {
      "county_name": "City and County of the City of London",
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    {
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    },
    {
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      "whole_sector_current_postcodes": 6,
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    {
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      "zero_population_records": 0,
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      "census_population_in_retired_or_unmatched_postcodes": 0,
      "source_census_years": null,
      "county_slug": "city-and-county-of-the-city-of-london",
      "mapped_counties_with_current_postcodes": 1.0,
      "whole_sector_current_postcodes": 10,
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      "whole_sector_household_census_sum": null,
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    },
    {
      "county_name": "City and County of the City of London",
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      "whole_sector_household_census_sum": null,
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    },
    {
      "county_name": "City and County of the City of London",
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      "located_postcode_share_pct": 88.889,
      "published_population_share_pct": null,
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      "retired_or_directory_unmatched_census_postcodes": 0,
      "census_population_in_retired_or_unmatched_postcodes": 0,
      "source_census_years": null,
      "county_slug": "city-and-county-of-the-city-of-london",
      "mapped_counties_with_current_postcodes": 2.0,
      "whole_sector_current_postcodes": 9,
      "whole_sector_current_located_postcodes": 9,
      "whole_sector_population_census_sum": null,
      "whole_sector_household_census_sum": null,
      "whole_sector_suppressed_population_records": 0,
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    },
    {
      "county_name": "City and County of the City of London",
      "country": "England",
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      "located_postcode_share_pct": 100.0,
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      "population_records": 0,
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      "current_postcodes_without_households": 9,
      "suppressed_population_records": 0,
      "suppressed_household_records": 0,
      "zero_population_records": 0,
      "zero_household_records": 0,
      "retired_or_directory_unmatched_census_postcodes": 0,
      "census_population_in_retired_or_unmatched_postcodes": 0,
      "source_census_years": null,
      "county_slug": "city-and-county-of-the-city-of-london",
      "mapped_counties_with_current_postcodes": 1.0,
      "whole_sector_current_postcodes": 9,
      "whole_sector_current_located_postcodes": 9,
      "whole_sector_population_census_sum": null,
      "whole_sector_household_census_sum": null,
      "whole_sector_suppressed_population_records": 0,
      "whole_sector_suppressed_household_records": 0,
      "other_current_located_postcodes": 0
    }
  ],
  "source_and_method": {
    "compiled": "2026-11-07",
    "method": "One postcode assigned once by centroid to a county outline in the same source country. Small gaps use the nearest outline within 1 km; actual maximum is 287.662 m. Overlaps choose the deepest interior.",
    "population_label": "Approximate census-based population",
    "household_label": "Approximate census-based households",
    "population_years": "2021 in England, Wales and Northern Ireland; 2022 in Scotland. Four combined cross-border postcodes contain both years.",
    "directory_date_note": "Supplied live directory with February 2026 ONSPD fallbacks; compilation dated 7 November 2026. Current means no termination recorded and a directory match.",
    "boundary_source": "Existing 91-county GBMaps atlas coverage; the source geometry checksum is included for each county.",
    "population_method_note": "Published census population is summed for postcode locations assigned to the mapped county. This is an approximate allocation of census residents, not a 2026 population estimate. Published figures for retired postcodes are retained.",
    "missing_values_note": "Blank or suppressed values remain unknown. Totals sum published values only; no postcode-count uplift or imputation is applied.",
    "household_definition": "Households from the supplied census sources. Total residents include communal establishments, so population divided by households is not presented as average household size.",
    "postcode_share_note": "Shares describe located postcode points or published census totals, not land area, exact address coverage or current population.",
    "ni_note": "The 91 county maps cover Great Britain. Northern Ireland remains in the UK district/sector totals, with 5,591 suppressed postcode records; their published subtotals are incomplete.",
    "sources": [
      {
        "name": "England and Wales Census 2021 postcode counts",
        "url": "https://www.nomisweb.co.uk/sources/census_2021_pc"
      },
      {
        "name": "Scotland Census 2022 geography and postcode data",
        "url": "https://www.nrscotland.gov.uk/publications/2022-census-geography-products"
      },
      {
        "name": "Northern Ireland Census 2021 postcode estimates",
        "url": "https://www.nisra.gov.uk/publications/census-2021-person-and-household-estimates-postcodes-northern-ireland"
      }
    ]
  },
  "display_status": "Usable as labelled approximate census-based figures; review the county definition and final website presentation."
}