Louisiana · Census place 2273640

Sulphur, Louisiana

Sulphur is a city in Calcasieu Parish, Louisiana with an estimated 20,572 residents on July 1, 2024. It is the 16th largest of 155 incorporated places of 1,000+ people in the state.

Population 2024
20,572
#16 of 155 in Louisiana
Change since 2020
-5.7%
-1,247 people
Land area
11.2 sq mi
+ 0.02 sq mi water
Density
1,830 / sq mi
State median 1,568
Orange pin: Sulphur. Shaded: its county. Dark pin: Baton Rouge.

Sulphur population, 2020 to 2024

Sulphur lost 1,247 residents from July 2020 to July 2024, a change of -5.7%. In the latest year it moved by +96. Among 59 Louisiana places of 5,000 or more, that growth ranks 56th; the median place changed by -2.7%. The median place of 5,000+ in Louisiana has 11,686 people, so Sulphur is 1.8 times that size.

21.8k202020.7k202120.4k202220.5k202320.6k2024
July 1 estimates. The April 2020 estimates base was 21,826. The axis starts above zero so yearly changes are visible.

Sulphur covers 11.24 square miles of land and 0.02 of water, for 1,830 people per square mile of land. The median Louisiana place of 5,000+ has 1,568, so Sulphur is denser than the typical town.

What county Sulphur is in

All of Sulphur's residents live in Calcasieu Parish, which had 206,861 residents in 2024. Sulphur holds 9.9% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Sulphur

2 ZIP Code Tabulation Areas (ZCTAs) overlap Sulphur by at least 10% of the ZCTA's or the city's land: 70663, 70665. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Sulphur is

The Census internal point of Sulphur is at 30.229800, -93.356300. Baton Rouge, the capital, is 130.3 miles E in a straight line. The nearest larger place is Lake Charles, LA (81,157 people), 8.9 miles away. The nearest city of 100,000 or more is Beaumont, TX, 48.2 miles away.

Internal point

Decimal
30.229800, -93.356300
DMS
30°13'47.28"N 93°21'22.68"W
UTM
15N 465715.0E 3344303.2N
Geohash
9vmegxhj2
Plus code
86286JHV+WF

Daylight in Sulphur

At 30.23° N, Sulphur gets about 14 h 06 min of daylight around the June solstice and 10 h 12 min around the December solstice, a swing of 3 h 54 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Sulphur

The eight nearest incorporated places of 1,000+ in Louisiana, measured between internal points. The closest is Westlake, 5.9 miles away, with 4,735 people.

Questions people ask

What is the population of Sulphur, LA?

20,572 on July 1, 2024, in the Census Vintage 2024 estimates. That is down 1,247 (5.7%) from 21,819 in July 2020.

What county is Sulphur in?

Calcasieu Parish. All of its residents live in that county.

What ZIP codes cover Sulphur?

2 ZIP Code Tabulation Areas overlap it by at least 10% of either area: 70663, 70665.

How far is Sulphur from Baton Rouge?

130.3 miles (209.7 km) in a straight line, heading E from Sulphur.

What is the nearest larger city to Sulphur?

Lake Charles, LA, with 81,157 residents, 8.9 miles away between internal points.

Sources and data as of

Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.

  1. 01Census Vintage 2024 subcounty population estimates
  2. 02Census 2024 Gazetteer, places
  3. 03Census 2020 ZCTA to place relationship file
  4. 04Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.