What is the population of Sulphur city?

Sulphur city has 21,004 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #23 of 489 in Louisiana.

What is the median household income in Sulphur city?

Median household income in Sulphur city is $58,044 a year, 26.1% below the national figure of $78,538.

How much does it cost to rent or buy in Sulphur city?

Median gross rent is $1,015 a month and the median home value is $175,200, so rent absorbs about 21% of median household income.

Is Sulphur city affordable compared with the rest of the US?

Homes cost about 3× the local median income here versus roughly 3.9× nationally, so Sulphur city is more affordable to buy in than the typical US market, and rent takes 21% of median income against the 30% cost-burden line.

Aerial view of a dense city center, illustrating the US cities ZIP code directory

Louisiana · Census place 73640

Sulphur, LA population, income and ZIP codes

Quick answer

The population of the city of Sulphur, Louisiana (Sulphur, LA — Census place “Sulphur city”) is 21,004 residents, ranking #23 of 489 places in Louisiana. Median household income is $58,044, the median home is worth $175,200 and median gross rent runs $1,015 a month. Looking for the Sulphur Louisiana ZIP code list? 1 ZIP codes serve Sulphur, LA: 70663.

Population: 21,004Sulphur city residents
Median household income: $58,044Past 12 months, inflation adjusted
Median home value: $175,200Owner-occupied units
Median gross rent: $1,015Rent plus utilities, monthly
Median age: 39.3 yrsAll residents
Homeownership rate: 72.8%Owner-occupied households

Sulphur ZIP codes (Louisiana)

Census ZCTAs whose delivery area overlaps Sulphur.

The Sulphur LA ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.

70663

What the numbers mean in Sulphur city

Housing cost measured against local earnings.

A household earning the Sulphur city median would spend about 21% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 3.0× the median household income; nationally that ratio sits near 4.5×. Poverty affects 17.2% of residents and 72.8% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

Sulphur city, LA in context

How this area compares with national benchmarks.

Sulphur city is a mid-size town in Louisiana, with 21,004 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #23 of 489 ranked by population — larger than 95% of them. The median age here is 39.3 years against 39.1 nationally, a slightly older profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Sulphur city earn a median of $58,044 a year, 26.1% below the national figure of $78,538 and 8% above the $53,775 median for the 268 Louisiana cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 17.2% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Sulphur city is valued at $175,200, 42.3% below the national figure and within a couple of points of the $173,000 peer median, while median gross rent runs $1,015 a month, 27.8% below the national figure, or roughly $12,180 across a full year. A household on the local median income would put about 21% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 3×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 72.8% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Compare with nearby places

Places of similar size in Louisiana.

More Louisiana coverage.

Frequently asked questions

Common questions about this area.

What is the population of Sulphur city?: Sulphur city has 21,004 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #23 of 489 in Louisiana.
What is the median household income in Sulphur city?: Median household income in Sulphur city is $58,044 a year, 26.1% below the national figure of $78,538.
How much does it cost to rent or buy in Sulphur city?: Median gross rent is $1,015 a month and the median home value is $175,200, so rent absorbs about 21% of median household income.
Is Sulphur city affordable compared with the rest of the US?: Homes cost about 3× the local median income here versus roughly 3.9× nationally, so Sulphur city is more affordable to buy in than the typical US market, and rent takes 21% of median income against the 30% cost-burden line.
How current is this Sulphur city data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.