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Sulphur city, LA

ZIP Code 70663 — Sulphur city, LA Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Working ClassLow Snow Area

Map, Quick Facts & Location

Quick Facts

Local time
Population
29,511
Median Income
$59,444
-21% vs US avg
Home Value
$174,300
-50% vs US avg
Median Rent
$814
-30% vs US avg
Median Age
37.7 yrs
-3% vs US avg
Area Code
Congress
Top Ancestry
FrenchFrench CanadianAmerican
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Location
Coordinates
30.2903, -93.3717
Elevation
25 ft
Land Area
96.8 sq mi
Water Area
1.4 sq mi (1% water)

At a glance

Population
29,511
Density
N/A
Median income
$59,444
-21% vs US avg
Home value
$174,300
-50% vs US avg
Median rent
$814
-30% vs US avg
Timezone

Overview of ZIP Code 70663

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What to know about ZIP 70663

ZIP code 70663 covers Sulphur, LA in Calcasieu Parish with a population of about 29,511.

At a glance, the area shows median age of 37.7 (near the U.S. median).

It sits in telephone area code 337; U.S. House district LA-4; the LAKE CHARLES media market.

Income and economy in Sulphur, LA

Median household income in ZIP 70663 is about $59,444 — about 21% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 17.9%; unemployment rate near 4.5%; 17.1% of adults with a bachelor’s degree or higher (about 16.6 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Construction, Retail trade, and Manufacturing; about 5.5% of workers reporting work-from-home (about 9.7 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 70663

Median home value is about $174,300 — about 50% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $814 (about 30% below the U.S. median rent ($1,163)), and owner-occupancy near 79.6% (about 14.2 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 70663 in Sulphur, LA, a household would need roughly $48,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $1,120. That sits below the local median household income ($59,444), suggesting the typical household income is closer to a workable buy-in level under these assumptions. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate risk and migration signals

Climate normals for Sulphur city, LA show little to no average snow and around 69.3 inches of annual precipitation.

IRS migration statistics show a net inflow of about 1,168 for ZIP 70663 (Sulphur city, LA) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.

Nearby (from this ZIP)

Airport LCH (14.4 miles (23.2 km)) · McNeese State University (12.0 miles (19.4 km)) · Big Thicket National Preserve (61.6 miles (99.2 km)) · VA: Jennings Clinic (42.5 miles (68.4 km))

Full lists and map pins are in the Infrastructure section below.