{
 "id": "census-welsh-speaking-adults-by-council",
 "title": "Welsh-speaking adults in the household by council, Census 2021",
 "category": "population",
 "summary": "Households of each of Wales's 22 councils by Welsh-speaking adults in the household, Census 2021, from the ONS Census API (its “Welsh-speaking adults in household (3 categories)”).",
 "unit": "count",
 "chart": "hbar",
 "volatile": false,
 "status": "",
 "notes": [
  "Census Day was the 21st of March 2021. The ONS perturbs every count slightly to protect privacy, each cell on its own, so a council's categories can add up to a total a few people different from one topic to another, and its councils add up to England's and Wales's counts only within a few dozen.",
  "By council as the ONS's Census API gives them, its lower-tier local authorities of 2023, with Barnsley's and Sheffield's figures under the codes they had until the 1st of April 2025, as the API gives them. Scotland's and Northern Ireland's censuses are separate, so their councils are not here.",
  "Every council's categories together count all its households.",
  "The question was asked in Wales only: the API puts all of England's households under “Does not apply”, so only Wales's 22 councils are here.",
  "The ONS's description of the topic, “Welsh-speaking adults in household (3 categories)”: Number of adults (aged 16 years and over) who can speak Welsh in households in Wales."
 ],
 "provenance": {
  "publisher": "Office for National Statistics (Census 2021)",
  "publisher_url": "https://www.ons.gov.uk/",
  "source_page": "https://www.ons.gov.uk/datasets/create",
  "licence": "OGL-3.0",
  "licence_name": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0.",
  "retrieved_at": "2026-10-30T11:44:28Z",
  "raw_files": [
   {
    "name": "observations.json",
    "url": "https://api.beta.ons.gov.uk/v1/population-types/HH/census-observations?area-type=ltla23&dimensions=hh_welsh_speaking_adults_3a",
    "sha256": "c65b7a09fae6c38d45d27e4cebaa5a277745dc5d979d1a68ef5bd2870c7461e4",
    "bytes": 312290,
    "content_type": "application/json; charset=utf-8"
   },
   {
    "name": "dimensions.json",
    "url": "https://api.beta.ons.gov.uk/v1/population-types/HH/dimensions?limit=500",
    "sha256": "1d975dc4aefd42401ab90f911470590ac63e6faea9e8fd6f81b555127037b6d3",
    "bytes": 27052,
    "content_type": "application/json; charset=utf-8"
   }
  ]
 },
 "meta": {
  "latest_period": "2021-03-21",
  "period": "Census Day, 21 March 2021",
  "categories": [
   "No Welsh-speaking adults in household",
   "At least one Welsh-speaking adult in household"
  ],
  "census_topic": "hh_welsh_speaking_adults_3a",
  "base": "all households",
  "tier": "council",
  "chart_series": [
   "No Welsh-speaking adults in household"
  ],
  "chart_areas": [
   "W06000015",
   "W06000011",
   "W06000016",
   "W06000018",
   "W06000022",
   "W06000005",
   "W06000013",
   "W06000012",
   "W06000014",
   "W06000006",
   "W06000023",
   "W06000009",
   "W06000010",
   "W06000021",
   "W06000020",
   "W06000003",
   "W06000004",
   "W06000019",
   "W06000024",
   "W06000002",
   "W06000008",
   "W06000001"
  ],
  "boundaries": "geo-boundaries-council"
 },
 "headline": {
  "label": "No Welsh-speaking adults in household, highest: Cardiff",
  "value": 128189.0,
  "period": "Census Day, 21 March 2021"
 },
 "series": [
  {
   "name": "No Welsh-speaking adults in household",
   "points": [
    {
     "x": "W06000015",
     "v": 128189.0
    },
    {
     "x": "W06000011",
     "v": 91795.0
    },
    {
     "x": "W06000016",
     "v": 89164.0
    },
    {
     "x": "W06000018",
     "v": 68439.0
    },
    {
     "x": "W06000022",
     "v": 62196.0
    },
    {
     "x": "W06000005",
     "v": 58281.0
    },
    {
     "x": "W06000013",
     "v": 55723.0
    },
    {
     "x": "W06000012",
     "v": 52496.0
    },
    {
     "x": "W06000014",
     "v": 50749.0
    },
    {
     "x": "W06000006",
     "v": 50043.0
    },
    {
     "x": "W06000023",
     "v": 49362.0
    },
    {
     "x": "W06000009",
     "v": 45040.0
    },
    {
     "x": "W06000010",
     "v": 44337.0
    },
    {
     "x": "W06000021",
     "v": 38088.0
    },
    {
     "x": "W06000020",
     "v": 37560.0
    },
    {
     "x": "W06000003",
     "v": 36930.0
    },
    {
     "x": "W06000004",
     "v": 31355.0
    },
    {
     "x": "W06000019",
     "v": 28692.0
    },
    {
     "x": "W06000024",
     "v": 23365.0
    },
    {
     "x": "W06000002",
     "v": 16601.0
    },
    {
     "x": "W06000008",
     "v": 15185.0
    },
    {
     "x": "W06000001",
     "v": 12337.0
    }
   ]
  },
  {
   "name": "At least one Welsh-speaking adult in household",
   "points": [
    {
     "x": "W06000015",
     "v": 19143.0
    },
    {
     "x": "W06000011",
     "v": 13169.0
    },
    {
     "x": "W06000016",
     "v": 14175.0
    },
    {
     "x": "W06000018",
     "v": 7818.0
    },
    {
     "x": "W06000022",
     "v": 3858.0
    },
    {
     "x": "W06000005",
     "v": 8630.0
    },
    {
     "x": "W06000013",
     "v": 6637.0
    },
    {
     "x": "W06000012",
     "v": 9882.0
    },
    {
     "x": "W06000014",
     "v": 6701.0
    },
    {
     "x": "W06000006",
     "v": 7871.0
    },
    {
     "x": "W06000023",
     "v": 10820.0
    },
    {
     "x": "W06000009",
     "v": 10448.0
    },
    {
     "x": "W06000010",
     "v": 37422.0
    },
    {
     "x": "W06000021",
     "v": 2836.0
    },
    {
     "x": "W06000020",
     "v": 2681.0
    },
    {
     "x": "W06000003",
     "v": 15305.0
    },
    {
     "x": "W06000004",
     "v": 11031.0
    },
    {
     "x": "W06000019",
     "v": 1648.0
    },
    {
     "x": "W06000024",
     "v": 2418.0
    },
    {
     "x": "W06000002",
     "v": 34502.0
    },
    {
     "x": "W06000008",
     "v": 15708.0
    },
    {
     "x": "W06000001",
     "v": 18486.0
    }
   ]
  }
 ]
}