Election results from the Electoral Council

Base URL

https://www.verkiezingsuitslagen.nl

Endpoints 5

• GET/uitslag/verkiezing/{code}/gemeentenCSV with the result per municipality and party (semicolon, UTF-8 without BOM). TK2025: 359 kB, 8,150 lines, 343 codes, 27 parties.
• GET/uitslag/verkiezing/{code}/stembureausCSV per polling station and party. Only filled for some elections (GR2022: 8.7 MB); for TK2025, PS2023, EP2024 only the header line.
• GET/verkiezingen/detailJson/{code}JSON the site uses for the detail page: Info (name, date, remark), Stemregio (electorate, turnout, valid, blank and invalid votes), PieChart (votes and percentage per party), Regios (provinces, electoral districts). Undocumented.
• GET/verkiezingen/detail/{code}Detail page (HTML); the national result with seats is JSON inside <textarea id="UitslagData">.
• GET/Verkiezingen/index/{pagina}?v=1800&t=2027List of elections (HTML, 10 per page) with codes, turnout and votes cast. This is where you find the codes.

Filtering tested

No filters: one file per election. Filter yourself on the Code (municipality) or Partij column.

Parameters 1

Columns in the CSV per municipality (and per polling station) 7

Limits and pitfalls

• No key and no documented limit. One file per election, usually a few hundred kB. tested
• The Azure firewall rejects the default Python requests User-Agent (HTTP 403). Always set your own User-Agent; curl and an honest UA work. tested
• An unknown election code returns HTTP 500 with an empty body, not 404. tested
• The polling-station CSV has no municipality column: codes like SB25 occur in many municipalities. For polling stations use the per-municipality EML files from data.overheid.nl. tested
• In detailJson, counts in Stemregio are Dutch-formatted text ("13.589.128", "78,3%"); in PieChart they are numbers. tested
• Skip codes from G9000 when counting municipalities; join on code, not name (Bergen NH G0373 and Bergen L G0893). experience
• Formats on data.overheid.nl differ per election (EML zips, wide or long CSV, Excel). Its CKAN API (/data/api/…) falls under Disallow: /data/ in robots.txt; the files themselves (/sites/default/files/…) do not. tested

Try it HTTP 200 · 385 ms · 16 Oct

https://www.verkiezingsuitslagen.nl/verkiezingen/detailJson/TK20251029

{
  "Info": {
    "KaartId": 67,
    "Id": 1876,
    "Code": "TK20251029",
    "Name": "Tweede Kamer",
    "Date": "29 oktober 2025",
    "Opkomst": null,
    "UitgebrachteStemmen": null,
    "Opmerking": "<b>LET OP!</b> In de databank vindt u de uitslagen per partij per gemeente. Uitslagen van stembureaus en stemmen op k…",
    "Voor1918": false,
    "IsReferendum": false,
    "StemmingId": 10926,
    "DateStemming": "29-10-2025",
    "HeeftZetelsBijGemeentes": false,
    "HeeftGemeentes": true
  },
  "Stemregio": {
    "OngeldigeStemmenPercentage": "0,27%",
    "BlancoStemmenPercentage": "0,38%",
    "StemmingId": 10926,
    "StemregioId": 745610,
    "Naam": "Nederland",
    "Kiesgerechtigden": "13.589.128",
    "OpkomstPercentage": "78,3%",
    "AantalZetels": null,
    "AantalGeldigeStemmen": "10.571.990",
    "AantalBlancoStemmen": "40.128",
    "AantalOngeldigeStemmen": "28.206",
    "AantalGeldigeBlancoStemmen": null,
    "AantalOngeldigeBlancoStemmen": null,
    "AantalStembriefjes": null
  },
  "Json": null,
  "Regios": {
    "Regios": [
      {
        "Id": 2,
        "Options": [
          {

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