--- entity_id: city:fr:insee5:02691 entity_type: city name: Saint-Quentin country_code: FR country: France slug: saint-quentin canonical_url: https://immigrationdb.com/cities/fr/saint-quentin/ json_url: https://immigrationdb.com/data/cities/fr/saint-quentin.json markdown_url: https://immigrationdb.com/data/cities/fr/saint-quentin.md mcp_uri: immigrationdb://city/fr/saint-quentin snapshot_id: approved-static-bb6d69cd3c074ae2 generated_at: 2026-08-04 last_verified: 2026-07-31 fact_count: 15 metric_dictionary_url: https://immigrationdb.com/data/metrics.json license_url: https://immigrationdb.com/about/copyright/ --- # Saint-Quentin Saint-Quentin is a city in France. Annual NO₂ was 10.7 µg/m³ in 2024. Saint-Quentin had a population of 52,813 at the start of 2024. In 2024, annual PM2.5 was 9.63 µg/m³. The city covered 22.6 km² in 2022. Population density was 2,349.1 people per km² in 2022. Annual PM10 was 14 µg/m³ in 2024. The unemployment rate was 21.9% at the end of 2022. ## Immigration The foreign population count was 3,392 in 2021. ## Facts | Metric | metric_id | Value | Scope | Observed | Verified | Freshness | Lane | Source | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Foreign residents | `foreign_population_total` | 3,392 people | city | 2021 | 2026-07-15 | stale | verified | [1] | | Population | `population_total` | 52,813 people | municipality | 2025-01-01 | 2026-07-14 | aging | verified | [2] | | NO₂ — latest reading | `air_quality_no2_current_ug_m3` | 10.9 µg/m³ | city | 2026-07-15 | 2026-07-15 | fresh | verified | [3] | | Gigabit broadband availability | `broadband_gigabit_availability_percent` | 97.18 % | city | 2026-03-31 | 2026-07-15 | fresh | verified | [4] | | Unemployment rate | `unemployment_total_percent` | 21.8566 % | city | 2022-12-31 | 2026-07-26 | stale | verified | [5] | | NO₂ — annual mean | `air_quality_no2_annual_ug_m3` | 10.7302 µg/m³ | city | 2024 | 2026-07-15 | stale | verified | [6] | | PM10 — annual mean | `air_quality_pm10_annual_ug_m3` | 13.9737 µg/m³ | city | 2024 | 2026-07-15 | stale | verified | [6] | | PM2.5 — annual mean | `air_quality_pm25_annual_ug_m3` | 9.6255 µg/m³ | city | 2024 | 2026-07-15 | stale | verified | [6] | | Average daytime high by month | `climate_monthly_high_c` | Jan 6 · Feb 7.1 · Mar 11.2 · Apr 15 · May 18.4 · Jun 21.5 · Jul 24 · Aug 23.9 · Sep 20.2 · Oct 15.2 · Nov 9.8 · Dec 6.5 °C | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [7] | | Average night-time low by month | `climate_monthly_low_c` | Jan 1.1 · Feb 1.2 · Mar 3.1 · Apr 4.9 · May 8.3 · Jun 11 · Jul 12.9 · Aug 12.9 · Sep 10.3 · Oct 7.6 · Nov 4.1 · Dec 1.7 °C | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [7] | | Average temperature by month | `climate_monthly_mean_c` | Jan 3.6 · Feb 4.2 · Mar 7.2 · Apr 10 · May 13.4 · Jun 16.2 · Jul 18.4 · Aug 18.4 · Sep 15.2 · Oct 11.4 · Nov 6.9 · Dec 4.1 °C | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [7] | | Average precipitation by month | `climate_monthly_precip_mm` | Jan 54.1 · Feb 48 · Mar 51.3 · Apr 43.2 · May 57.1 · Jun 59.8 · Jul 60.2 · Aug 70.8 · Sep 51.4 · Oct 60.3 · Nov 56.8 · Dec 70.4 mm | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [7] | | Average sunshine by month | `climate_monthly_sunshine_h` | Jan 61 · Feb 79 · Mar 134 · Apr 182 · May 205 · Jun 207 · Jul 213 · Aug 206 · Sep 167 · Oct 115 · Nov 66 · Dec 54 hours | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [7] | | City area | `city_area_km2` | 22.56 km2 | place | 2022-01-01 | 2026-07-14 | stale | verified | [8] | | Population density | `population_density_per_km2` | 2,349.0691 people/km² | place | 2022-01-01 | 2026-07-14 | stale | verified | [8] | 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. Nationalité en 2021 — Base des tableaux détaillés — NAT1 — Official source — https://www.insee.fr/fr/statistiques/fichier/8202752/TD_NAT1_2021_csv.zip 2. France official denominator source — Official source — https://www.insee.fr/fr/statistiques/fichier/8680726/ensemble.zip 3. Latest valid NO2 hourly station observation on the official LCSQA E2 current-day extract, mapped to the exact INSEE centre through an exact normalized station-name crosswalk to EEA station metadata. — Official source — https://files.data.gouv.fr/ineris/lcsqa/concentrations-de-polluants-atmospheriques-reglementes/temps-reel/2026/FR_E2_2026-07-15.csv 4. Independent ARCEP municipal count of premises eligible for the >=1 Gbit/s fixed advertised-speed class, divided by the ARCEP type=all municipal premises denominator. This is availability/eligibility, not adoption, measured speed, FTTH-only coverage or mobile coverage. — Official source — https://data.arcep.fr/fixe/maconnexioninternet/statistiques/2026_T1/commune/commune_debit.csv 5. INSEE RP2022 ACT1 — population active by type of activity, commune — Official source — https://www.insee.fr/fr/statistiques/fichier/8581605/TD_ACT1_2022_csv.zip 6. 2024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation. — Official source — https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AirQualityDownloadServiceEUMonitoringStations/MapServer 7. WMO Climatological Normals 1991-2020 — station ST_QUENTIN — Official source — https://www.ncei.noaa.gov/data/oceans/archive/arc0216/0253808/1.1/data/0-data/Region-6-WMO-Normals-9120/France/CSV/ST_QUENTIN_07061.csv 8. A-ccepted source for city area and derived population density — Official source — https://www.insee.fr/fr/statistiques/fichier/2521169/base_cc_comparateur_csv.zip ## Cite ImmigrationDB. "Saint-Quentin, France." Snapshot approved-static-bb6d69cd3c074ae2, last verified 2026-07-31. https://immigrationdb.com/cities/fr/saint-quentin/ 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/fr/saint-quentin/ - JSON: https://immigrationdb.com/data/cities/fr/saint-quentin.json - Markdown: https://immigrationdb.com/data/cities/fr/saint-quentin.md - MCP resource: immigrationdb://city/fr/saint-quentin - 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