Data sources & attribution

Bundesamt für Energie (BFE)

Solarenergiepotenziale der Schweizer Gemeinden: Dächer und Fassaden — modelled annual PV electricity potential per municipality (roofs-only and roofs+façades scenarios, GWh/year). A rolling MODEL SNAPSHOT with no survey year.Licence: terms_byRetrieved: 10.08.2026

Bundesamt für Statistik (BFS)Survey: Kantonale Abstimmungen (sd-t-17-02)

Cantonal referendum results per municipality (sd-t-17-02 kantAbstimmung, vote Sundays since 2015)Licence: terms_by_askRetrieved: 03.08.2026

Bundesamt für Statistik (BFS)Survey: Volksabstimmungen (sd-t-17-02)

Federal referendum results per municipality (sd-t-17-02, vote Sundays since 2015)Licence: terms_by_askRetrieved: 03.08.2026

Bundesamt für Statistik (BFS)Survey: sd-t-17.02-NRW2023

National Council 2023: party strength per municipality (sd-t-17.02-NRW2023)Licence: terms_byRetrieved: 20.07.2026

Bundesamt für Statistik (BFS)Survey: STATPOP

Population by age group, sex, nationality per municipality (STATPOP)Licence: BFS-copyrightRetrieved: 24.07.2026

Bundesamt für Statistik (BFS)Survey: STATPOP

Merged municipality profile (population by age/sex/nationality, STATPOP) — the merge source populate-real-data.ts and municipalities.json derive fromLicence: BFS-copyrightRetrieved: 24.07.2026

Bundesamt für Statistik (BFS)Survey: STATPOP

STATPOP: permanent residents by citizenship category per municipality (px-x-0102010000_101, latest year)Licence: BFS-copyrightRetrieved: 20.07.2026

Bundesamt für Statistik (BFS)Survey: STATPOP

City Statistics — Lebensqualität in den Quartieren: demografischer Kontext (px-x-2105000000_302, 13 indicators, latest year 2024) + Wohnsituation (px-x-2105000000_303, 10 indicators, latest year 2023). 239 current statistical quarters across 10 cities (Winterthur, Zürich, Bern, Luzern, Lugano, Basel, Lausanne, Genève, St. Gallen, Biel/Bienne). NO national coverage; NO geometry (Phase 1, see spec/tech/quartier-spike.md). Quarter code prefixes the BFS municipality number (all but the last 3 digits).Licence: terms_byRetrieved: 08.08.2026

Bundesamt für Statistik (BFS), GEOSTATSurvey: GEOSTAT Quartiergrenzen der Städte

GEOSTAT: Quartiergrenzen von Schweizer Städten 2024 (ag-b-00.03-95-qg24). 251 statistical-quarter polygons across 11 City-Statistics cities in LV95 (EPSG:2056). The committed file is the crosswalk (local_id, quarter_code, quartier_name, bfs_number, area) extracted by fetch-quartier-geometry.ts; the raw GeoJSON is gitignored. quarter_code = String(GMDEQNR) joins v_quartier exactly. Fribourg (BFS 2196, 12 quarters) has geometry but no v_quartier stats.Licence: BFS-copyrightRetrieved: 10.08.2026

Bundesamt für Statistik (BFS)Survey: Strukturerhebung

Strukturerhebung: resident population 15+ by religious affiliation per canton (asset 30166056, 2010–2022, sample survey with 95% CIs; NOTE: municipality-level religion has not been collected since the 2000 census — canton is the finest level)Licence: BFS-copyrightRetrieved: 30.07.2026

Bundesamt für Statistik (BFS), GEOSTAT · swisstopoSurvey: PLZ × Quartier (abgeleitet)

DERIVED: PLZ ↔ statistical-quarter area overlap. Per (PLZ4, quarter) the share of the PLZ perimeter that falls in each BFS statistical quarter, plus an outside_pct residual for the part in no covered quarter. Computed by build-plz-quartier-overlap.ts by 25 m LV95 grid sampling of the raw swisstopo AMTOVZ_ZIP PLZ perimeters against the BFS GEOSTAT quart24 quarter polygons (10 City-Statistics cities with v_quartier stats; Fribourg excluded).Licence: BFS-copyrightRetrieved: 10.08.2026

Eidgenössische Steuerverwaltung (ESTV)

Current-year tax multipliers per municipality (calculator bulk API, income/fortune/profit/capital × canton/city/church)Licence: unknownRetrieved: 20.07.2026

MeteoSwiss

Climate normals 1991-2020, 1km spatial analyses (ch.meteoschweiz.ogd-climate-normals-grid: tnormy9120 temperature, rnormy9120 precipitation, snormy9120 relative sunshine) sampled per municipality — settlement value at the populated centroid plus the territorial area meanLicence: CC-BY-4.0Retrieved: 03.08.2026

MeteoSwiss

Automatic weather stations (ogd-smn): yearly mean temperature + precipitation since 2015Licence: CC-BY-4.0Retrieved: 24.07.2026

Wikidata

Municipality official website (P856) + head of government (P6, party P102)Licence: CC0Retrieved: 27.07.2026

Wikidata

Multilingual municipality names (de/fr/it/en) keyed by BFS numberLicence: CC0Retrieved: 13.06.2026

curated reference (BFS canton register)

26 cantons: codes, four-language names, capitalsLicence: unknownRetrieved: 19.07.2026

swisstopo

swissBOUNDARIES3D municipality metadata: official area (hectares)Licence: terms_byRetrieved: 21.07.2026

swisstopo

Ortschaftenverzeichnis PLZ perimeter (AMTOVZ_ZIP): official polygon area (SHAPE_AREA, m²) and perimeter (SHAPE_LEN, m) per PLZ4, summed across Zusatzziffer partsLicence: terms_openRetrieved: 08.08.2026

swisstopo

Ortschaftenverzeichnis PLZ (amtliches Verzeichnis)Licence: terms_openRetrieved: 17.05.2026

swisstopo

DEM-derived terrain metrics per municipality from ch.swisstopo.swissaltiregio (overview 1 = 40 m): elevation mean/min/max/relief, slope mean/max (MEASURED AT 40 m — resolution-dependent), aspect N/E/S/W shares, hypsometry above 1000/2000/3000 m, flat-land share (slope < 5°). Polygon-masked over the committed boundary GeoJSONs.Licence: terms_byRetrieved: 04.08.2026

The relief shown on every page derives from swisstopo swissALTIRegio, which composites foreign elevation models and requires this compound credit:

Bundesamt für Landestopografie swisstopo; Tarquini S., I. Isola, M. Favalli, A. Battistini, G. Dotta (2023). TINITALY, Istituto Nazionale di Geofisica e Vulcanologia (INGV). https://doi.org/10.13127/tinitaly/1.1; DGM Österreich, geoland.at; DGM1, Bayerische Vermessungsverwaltung – www.geodaten.bayern.de; DGM1, Baden-Württemberg: LGL, www.lgl-bw.de, dl-de/by-2-0; RGEAlti, Institut National de l’information géographique et forestière (IGN France)