St. Mary Parish, Louisiana
St. Mary Parish, Louisiana · ZIP 70340, 70342, 70380
- Census data · ACS 2019-2023
- 46,799 (2024 estimate)Population
- 18,705Households
- $51,768Median household income
- $128,000Median home value
- 12Towns with a page
- 9ZIP codes
St. Mary Parish in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 53,500 |
| 2010 | 54,650 |
| 2020 | 49,406 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county level, state 22, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 22, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 22, retrieved November 14, 2026.
Median household income $51,768 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 22, retrieved November 14, 2026.
- Owner occupied
- 13,064 units
- Renter occupied
- 5,641 units
- Vacancy rate
- 16.9%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 22, retrieved November 14, 2026.
18,400 employees in 1,083 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 22, retrieved November 14, 2026.
| Measure | St. Mary Parish | Louisiana |
|---|---|---|
| Population | 48,455 | 4,621,025 |
| Median household income | $51,768 | $60,023 |
| Median age | 39.7 | 37.8 |
| Median home value | $128,000 | $208,700 |
| Bachelor’s degree or higher | 13.1% | 26.6% |
| Foreign-born residents | 4.9% | 4.7% |
| Owner-occupied homes | 69.8% | 67.3% |
| Mean commute to work | 24.7 minutes | 25.8 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 22, retrieved November 14, 2026.
Townships, towns and villages in St. Mary Parish12 with a page · sort by any column
| Type | |||
|---|---|---|---|
| Morgan City | City | 10,813 | 5.98 sq mi |
| Franklin | City | 6,284 | 9.96 sq mi |
| Patterson | City | 5,614 | 2.52 sq mi |
| Berwick | Town | 4,495 | 5.90 sq mi |
| Bayou Vista | Census designated place | 3,931 | 1.80 sq mi |
| Amelia | Census designated place | 2,161 | 2.52 sq mi |
| Baldwin | Town | 1,665 | 3.22 sq mi |
| Charenton | Census designated place | 1,295 | 4.97 sq mi |
| Sorrel | Census designated place | 695 | 2.12 sq mi |
| Centerville | Census designated place | 643 | 0.94 sq mi |
| Siracusaville | Census designated place | 498 | 0.80 sq mi |
| Glencoe | Census designated place | 132 | 0.66 sq mi |
Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 22 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.
County officialsFrom public records
No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.
Across St. Mary Parish
No job is posted in St. Mary Parish’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.
No upcoming event is listed in St. Mary Parish's towns yet. Members and businesses add events from any town page.
Nothing has been posted in St. Mary Parish’s towns yet. Join a town to start its feed.
Neighboring counties
Neighboring counties
- Assumption ParishPopulation 20,050 (2024 estimate)
- Iberia ParishPopulation 67,540 (2024 estimate)
- St. Martin ParishPopulation 51,218 (2024 estimate)
- Terrebonne ParishPopulation 103,864 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 22, retrieved November 14, 2026.