--- entity_id: city:fr:insee5:83126 entity_type: city name: La Seyne-sur-Mer country_code: FR country: France slug: la-seyne-sur-mer canonical_url: https://immigrationdb.com/cities/fr/la-seyne-sur-mer/ json_url: https://immigrationdb.com/data/cities/fr/la-seyne-sur-mer.json markdown_url: https://immigrationdb.com/data/cities/fr/la-seyne-sur-mer.md mcp_uri: immigrationdb://city/fr/la-seyne-sur-mer snapshot_id: approved-static-bb6d69cd3c074ae2 generated_at: 2026-08-04 last_verified: 2026-07-31 fact_count: 14 metric_dictionary_url: https://immigrationdb.com/data/metrics.json license_url: https://immigrationdb.com/about/copyright/ --- # La Seyne-sur-Mer La Seyne-sur-Mer is a city in France. At the end of 2022, the unemployment rate was 14.1%. Its population was 63,732 at the start of 2024. Gigabit broadband availability was 99.2% in 2026. ## Population The city covered 22.2 km² in 2022. Population density was 2,837.4 people per km² in 2022. ## Climate Annual PM2.5 was 8.17 µg/m³ in 2024. Annual NO₂ was 18.3 µg/m³ in 2024. Annual PM10 was 22.2 µg/m³ in 2024. ## Immigration The foreign population count was 3,537 in 2021. ## Facts | Metric | metric_id | Value | Scope | Observed | Verified | Freshness | Lane | Source | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Foreign residents | `foreign_population_total` | 3,537 people | city | 2021 | 2026-07-15 | stale | verified | [1] | | Population | `population_total` | 63,732 people | municipality | 2025-01-01 | 2026-07-14 | aging | verified | [2] | | NO₂ — latest reading | `air_quality_no2_current_ug_m3` | 13.55 µg/m³ | city | 2026-07-15 | 2026-07-15 | fresh | verified | [3] | | Gigabit broadband availability | `broadband_gigabit_availability_percent` | 99.23 % | city | 2026-03-31 | 2026-07-15 | fresh | verified | [4] | | Unemployment rate | `unemployment_total_percent` | 14.1445 % | city | 2022-12-31 | 2026-07-26 | stale | verified | [5] | | NO₂ — annual mean | `air_quality_no2_annual_ug_m3` | 18.299 µg/m³ | city | 2024 | 2026-07-15 | stale | verified | [6] | | PM10 — annual mean | `air_quality_pm10_annual_ug_m3` | 22.1526 µg/m³ | city | 2024 | 2026-07-15 | stale | verified | [6] | | PM2.5 — annual mean | `air_quality_pm25_annual_ug_m3` | 8.1677 µg/m³ | city | 2024 | 2026-07-15 | stale | verified | [6] | | Average daytime high by month | `climate_monthly_high_c` | Jan 11.8 · Feb 12.2 · Mar 14.9 · Apr 17.3 · May 21.2 · Jun 25.3 · Jul 28 · Aug 28.3 · Sep 24.3 · Oct 20 · Nov 15.3 · Dec 12.6 °C | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [7] | | Average night-time low by month | `climate_monthly_low_c` | Jan 6.6 · Feb 6.1 · Mar 8.1 · Apr 10.2 · May 13.7 · Jun 17.3 · Jul 19.7 · Aug 20 · Sep 16.8 · Oct 13.9 · Nov 10 · Dec 7.6 °C | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [7] | | Average temperature by month | `climate_monthly_mean_c` | Jan 9.2 · Feb 9.2 · Mar 11.5 · Apr 13.8 · May 17.4 · Jun 21.3 · Jul 23.9 · Aug 24.2 · Sep 20.6 · Oct 17 · Nov 12.6 · Dec 10.1 °C | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [7] | | Average precipitation by month | `climate_monthly_precip_mm` | Jan 71.9 · Feb 50 · Mar 42 · Apr 55.4 · May 37.6 · Jun 27 · Jul 6.5 · Aug 12.1 · Sep 70.3 · Oct 107.7 · Nov 99 · Dec 67.5 mm | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [7] | | City area | `city_area_km2` | 22.17 km2 | place | 2022-01-01 | 2026-07-14 | stale | verified | [8] | | Population density | `population_density_per_km2` | 2,837.3929 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 CAP_CEPET — Official source — https://www.ncei.noaa.gov/data/oceans/archive/arc0216/0253808/1.1/data/0-data/Region-6-WMO-Normals-9120/France/CSV/CAP_CEPET_07661.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. "La Seyne-sur-Mer, France." Snapshot approved-static-bb6d69cd3c074ae2, last verified 2026-07-31. https://immigrationdb.com/cities/fr/la-seyne-sur-mer/ 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/la-seyne-sur-mer/ - JSON: https://immigrationdb.com/data/cities/fr/la-seyne-sur-mer.json - Markdown: https://immigrationdb.com/data/cities/fr/la-seyne-sur-mer.md - MCP resource: immigrationdb://city/fr/la-seyne-sur-mer - 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