--- entity_id: city:pl:slug:bielsko-biala entity_type: city name: "Bielsko-Biała" country_code: PL country: Poland slug: bielsko-biala canonical_url: https://immigrationdb.com/cities/pl/bielsko-biala/ json_url: https://immigrationdb.com/data/cities/pl/bielsko-biala.json markdown_url: https://immigrationdb.com/data/cities/pl/bielsko-biala.md mcp_uri: immigrationdb://city/pl/bielsko-biala snapshot_id: approved-static-bb6d69cd3c074ae2 generated_at: 2026-08-04 last_verified: 2026-08-01 fact_count: 12 metric_dictionary_url: https://immigrationdb.com/data/metrics.json license_url: https://immigrationdb.com/about/copyright/ --- # Bielsko-Biała In March 2021, the foreign population was 487. The population of Bielsko-Biała, in Poland, was 164,318 at the end of 2024. The unemployment rate was 2.5% at the end of 2025. ## Population The city covered 124 km² in 2024. Population density was 1,325 people per km² in 2024. ## Climate Monthly mean temperatures were −0.9°C in January and 18.7°C in July. Monthly precipitation was 45.2 mm in January and 143.2 mm in July. Annual PM2.5 was 18 µg/m³ at the end of 2024. ## Facts | Metric | metric_id | Value | Scope | Observed | Verified | Freshness | Lane | Source | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Foreign residents | `foreign_population_total` | 487 people | city | 2021-03-31 | 2026-07-15 | stale | verified | [1] | | Population | `population_total` | 164,318 people | gmina | 2024-12-31 | 2026-07-14 | stale | verified | [2] | | Unemployment rate | `unemployment_total_percent` | 2.5 % | city | 2025-12-31 | 2026-07-27 | aging | verified | [3] | | NO₂ — annual mean | `air_quality_no2_annual_ug_m3` | 15 µg/m³ | nearest_station | 2024-12-31 | 2026-08-01 | stale | verified | [4] | | PM10 — annual mean | `air_quality_pm10_annual_ug_m3` | 19 µg/m³ | nearest_station | 2024-12-31 | 2026-08-01 | stale | verified | [5] | | PM2.5 — annual mean | `air_quality_pm25_annual_ug_m3` | 18 µg/m³ | city | 2024-12-31 | 2026-07-29 | stale | verified | [6] | | Average daytime high by month | `climate_monthly_high_c` | Jan 2.2 · Feb 3.5 · Mar 7.6 · Apr 14.1 · May 18.6 · Jun 21.9 · Jul 24 · Aug 23.9 · Sep 18.6 · Oct 13.5 · Nov 8.2 · Dec 3.3 °C | city | 2020-12-31 | 2026-07-27 | stale | verified | [7] | | Average night-time low by month | `climate_monthly_low_c` | Jan -3.9 · Feb -3 · Mar -0.2 · Apr 4.1 · May 8.4 · Jun 12 · Jul 13.7 · Aug 13.5 · Sep 9.6 · Oct 5.7 · Nov 1.6 · Dec -2.6 °C | city | 2020-12-31 | 2026-07-27 | stale | verified | [8] | | Average temperature by month | `climate_monthly_mean_c` | Jan -0.9 · Feb 0.2 · Mar 3.5 · Apr 9 · May 13.4 · Jun 16.8 · Jul 18.7 · Aug 18.5 · Sep 13.8 · Oct 9.3 · Nov 4.8 · Dec 0.3 °C | city | 2020-12-31 | 2026-07-27 | stale | verified | [9] | | Average precipitation by month | `climate_monthly_precip_mm` | Jan 45.2 · Feb 46.6 · Mar 58.6 · Apr 67.8 · May 128.7 · Jun 131.6 · Jul 143.2 · Aug 92 · Sep 110.2 · Oct 72.7 · Nov 56.8 · Dec 45.2 mm | city | 2020-12-31 | 2026-07-27 | stale | verified | [10] | | City area | `city_area_km2` | 124 km2 | city | 2024-12-31 | 2026-07-15 | stale | verified | [11] | | Population density | `population_density_per_km2` | 1,325 people/km² | city | 2024-12-31 | 2026-07-15 | stale | verified | [12] | Every row keeps the value, unit, geographic scope, observation date, verification date and the numbered source below. A missing metric means the city does not publish it; nothing is imputed. ## Sources 1. GUS BDL / NSP 2021 non-Polish citizenship variable 1653367 — Official source — https://bdl.stat.gov.pl/api/v1/data/by-unit/{teryt_gmina}?var-id=1653367&year=2021 2. source-2b7a79942f2d — Official source — https://bdl.stat.gov.pl/api/v1/data/by-unit/012414461011?var-id=72305&year=2024 3. Local Data Bank — Share of registered unemployed persons in the working-age population by sex, total, 2025 — Official source — https://bdl.stat.gov.pl/api/v1/data/by-variable/79214?lang=en&unit-level=6&year=2025 4. EEA air quality statistics — PL NO2 annual mean 2024 (station Bielsko-Biała, ul. Kossak-Szczuckiej) — Official source — https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'PL'%20AND%20AirPollutant%3D'NO2'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json 5. EEA air quality statistics — PL PM10 annual mean 2024 (station Bielsko-Biała, ul. Kossak-Szczuckiej) — Official source — https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'PL'%20AND%20AirPollutant%3D'PM10'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json 6. EEA Air Quality Annual Statistics — Poland 2024 PM2.5 city station means — Official source — https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=AirPollutant%3D%27PM2.5%27+AND+Country_ISO%3D%27PL%27+AND+YearOfStatistics%3D2024&outFields=AirPollutant%2CAirPollutionLevel%2CCountry_ISO%2CStationName%2CAreaOfMeasurementStation%2CYearOfStatistics%2CUnitOfAirpollutionLevel%2CTypeOfMeasurementStation%2CDataCoverage%2CReportingMetric%2CLatitudeOfMeasurementStation%2CLongitudeOfMeasurementStation&returnGeometry=false&resultRecordCount=1000&resultOffset=0&f=json 7. IMGW-PIB climate normal — mean monthly maximum air temperature, BIELSKO BIAŁA, 1991-2020 — Official source — https://klimat.imgw.pl/pl/climate-normals/TMAX_AVE 8. IMGW-PIB climate normal — mean monthly minimum air temperature, BIELSKO BIAŁA, 1991-2020 — Official source — https://klimat.imgw.pl/pl/climate-normals/TMIN_AVE 9. IMGW-PIB climate normal — mean monthly air temperature, BIELSKO BIAŁA, 1991-2020 — Official source — https://klimat.imgw.pl/pl/climate-normals/TSR_AVE 10. IMGW-PIB climate normal — monthly total precipitation, BIELSKO BIAŁA, 1991-2020 — Official source — https://klimat.imgw.pl/pl/climate-normals/OPAD_SUMA 11. GUS BDL / GUGiK area variable 2018 — Official source — https://bdl.stat.gov.pl/api/v1/data/by-unit/{teryt_gmina}?var-id=2018&year=2024 12. Reproducible gmina density for Bielsko-Biała: population_total_2024 / official area_2024, rounded to the metric contract precision 0. — Official source — https://bdl.stat.gov.pl/api/v1/data/by-unit/012414461011?var-id=2018&var-id=72305&year=2024 ## Cite ImmigrationDB. "Bielsko-Biała, Poland." Snapshot approved-static-bb6d69cd3c074ae2, last verified 2026-08-01. https://immigrationdb.com/cities/pl/bielsko-biala/ Reuse requires the direct source URL, the observation date and a link back to the ImmigrationDB page: https://immigrationdb.com/about/copyright/ ## Data - HTML: https://immigrationdb.com/cities/pl/bielsko-biala/ - JSON: https://immigrationdb.com/data/cities/pl/bielsko-biala.json - Markdown: https://immigrationdb.com/data/cities/pl/bielsko-biala.md - MCP resource: immigrationdb://city/pl/bielsko-biala - Metric dictionary: https://immigrationdb.com/data/metrics.json - All published city facts, one row each: https://immigrationdb.com/data/facts.ndjson.gz - Release catalog: https://immigrationdb.com/data/catalog.json