County ProfileLA
St. Martin County
Population: 51,767 · 4 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
51,767
People
Median age
40.1
Housing
Total households
19,579
Income
Median household income
$55,960
Housing
Total housing units
23,828
Employment
Employment rate
55.3%
Education
Bachelor’s degree or higher
16.8%
Healthcare
Insured population
93.9%
County details
Local time 04:36:47(CT)| Name | St. Martin |
|---|---|
| Total ZIP codes | 4total |
| ZIP codes (by type) | 2 Standard2 PO Box |
| Area code | 337 |
| Timezone | Central Time (CT) |
| Coordinates | 30.1214329, -91.6114814 |
| Land area | 737.5 sq miles(1,910.2 km²) |
Map of St. Martin county, Louisiana with ZIP codes
Cities and Communities in St. Martin County
Compare the largest cities in St. Martin County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Breaux Bridge | 7,513 | $47,806 | 1ZIPs |
| Saint Martinville | 5,379 | $36,130 | 1ZIPs |
| Cade | 1,874 | $72,839 | 1ZIPs |
| Cecilia | 1,807 | $67,109 | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in St. Martin County
Review the most populated postal areas across St. Martin County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 70517 | Breaux Bridge | $60,778 | 26,434 |
| 70582 | Saint Martinville | $49,837 | 19,088 |
| 70519 | Cade | — | 122 |
| 70521 | Cecilia | — | — |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS