City in Calcasieu Parish, Louisiana · 11.2 sq mi · 1,796 people per sq mi
20,180 people live in Sulphur. The typical household earns $61,760, and the median resident is 38 years old.
2026 projection
From 21,809 in 2020
Poverty rate 16%
Men 37.2 · Women 40.5
1920–2026
20,180
2026 projection
7.5% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1920–2026
20,180
2026 projection
7.5% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 20,180 | -312 | 1.52% |
|---|---|---|---|
| 2025 | 20,492 | -63 | 0.31% |
| 2024 | 20,555 | +94 | 0.46% |
| 2023 | 20,461 | +108 | 0.53% |
| 2022 | 20,353 | -293 | 1.42% |
| 2021 | 20,646 | -1,163 | 5.33% |
| 2020 | 21,809 | +151 | 0.70% |
| 2019 | 21,658 | +174 | 0.81% |
| 2018 | 21,484 | +128 | 0.60% |
| 2017 | 21,356 | +142 | 0.67% |
Showing 10 of 26 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Sulphur has a population change lower than Calcasieu Parish, Louisiana, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 208 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 6 residents
42% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 42% | 44% | 40% |
| Never married | 33% | 36% | 31% |
| Divorced | 17% | 15% | 19% |
| Widowed | 7% | 4% | 9% |
| Separated | 2% | 1% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources