Sulphur city, Louisiana
Official LSAD Designation: Sulphur city • Census GEOID: 2273640
• Calcasieu Parish
Sulphur city is an incorporated city in Calcasieu Parish, Louisiana. According to official records from the Census (2025), Sulphur city had an estimated population of 20,492 residents. Official Census Bureau geographic records classify this community under LSAD designation Sulphur city (GEOID 2273640).
Local Government Administration U.S. Census Bureau GMAF
City Of Sulphur
Municipal
Official Title:
Administrative Assistant
Address:
PO BOX 1309, SULPHUR LA 70664-1309
Parish Of Calcasieu
County
Official Title:
Police Jury President
Address:
PO BOX 3287, LAKE CHARLES LA 70602-3287
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 20,492 | 2025 |
| Median Household Income | $61,760 | 2020-2024 |
| Median Home Value | $182,900 | 2020-2024 |
| Land Area | 11.23 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).