Châlons-en-Champagne
Châlons-en-Champagne has a population of 42,971 people; a published rent or housing observation of 4.4 µg/m³; a published area of 26.05 km2. Read each value with its source, scope and date.
DemographicsWork IncomeHousingClimate Air
Foreign Population Total3,227 peoplecity · Verified 2026-07-15Official source · Nationalité en 2021 — Base des tableaux détaillés — NAT1
Population Total42,971 peoplemunicipality · Verified 2026-07-12Independent source · France official denominator source
Air Quality No2 Current Ug M34.4 µg/m³city · Verified 2026-07-15Official source · 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.
Broadband Gigabit Availability Percent98.15 %city · Verified 2026-07-15Official source · 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.
Air Quality No2 Annual Ug M37.2426 µg/m³city · Verified 2026-07-15Official source · 2024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation.
Air Quality Pm10 Annual Ug M311.7064 µg/m³city · Verified 2026-07-15Official source · 2024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation.
Every value keeps its source, geographic scope and verification date · Last checked 2026-07-15
2 published facts
Climate and air quality
| Metric | Value | Source | Verified |
|---|---|---|---|
| Air Quality No2 Annual Ug M3 | 7.2426 µg/m³ | Official source2024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation. Source-backed value | 2026-07-15 |
| Air Quality Pm10 Annual Ug M3 | 11.7064 µg/m³ | Official source2024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation. Source-backed value | 2026-07-15 |
1 published fact
Demographics
| Metric | Value | Source | Verified |
|---|---|---|---|
| Population Total | 42,971 people | Independent sourceFrance official denominator source Source-backed value | 2026-07-12 |
1 published fact
Housing and living costs
| Metric | Value | Source | Verified |
|---|---|---|---|
| Air Quality No2 Current Ug M3 | 4.4 µg/m³ | Official sourceLatest 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. Source-backed value | 2026-07-15 |
3 published facts
Population and city profile
| Metric | Value | Source | Verified |
|---|---|---|---|
| City Area Km2 | 26.05 km2 | Official sourceA-ccepted source for city area and derived population density Source-backed value | 2026-07-14 |
| Foreign Population Total | 3,227 people | Official sourceNationalité en 2021 — Base des tableaux détaillés — NAT1 Source-backed value | 2026-07-15 |
| Population Density Per Km2 | 1,659.0403 people/km² | Official sourceA-ccepted source for city area and derived population density Source-backed value | 2026-07-14 |
1 published fact
Work and income
| Metric | Value | Source | Verified |
|---|---|---|---|
| Broadband Gigabit Availability Percent | 98.15 % | Official sourceIndependent 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. Source-backed value | 2026-07-15 |
Sources
Nationalité en 2021 — Base des tableaux détaillés — NAT1Official source · Checked 2026-07-15France official denominator sourceIndependent source · Checked 2026-07-15Latest 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 · Checked 2026-07-15Independent 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 · Checked 2026-07-152024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation.Official source · Checked 2026-07-15A-ccepted source for city area and derived population densityOfficial source · Checked 2026-07-15
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Use the linked JSON or Markdown record for exact values, source URLs and verification dates.