St. Martin Parish, Louisiana

St. Martin Parish, Louisiana, has 51,106 residents (July 2025 estimate). Its county seat is St. Martinville. It uses Central Time and covers 738 sq mi (1,910 km²) of land. It is a county equivalent (parish).

New OrleansBaton RougeShreveport
St. Martin Parish in Louisiana
Assumption ParishIberville ParishLafayette ParishBroussardMorgan CityBreaux Bridge
St. Martin Parish and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
51,106
Land area
738 sq mi (1,910 km²)
County seat or government
St. Martinville
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$55,960 ± $5,042
Median home value
$164,200 ± $6,482
Median rent, with utilities
$870 ± $50
Homes lived in by their owners
77.7% ± 2.3 points
County type
Parish
Metro or micro area
Lafayette, LA metro areaOutlying parish
Water area
79.2 sq mi (205 km²)
State
Louisiana
County code (FIPS)
22099
Coordinates (central point)
30.121433, -91.611481

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in St. Martin Parish

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 7056036,996 people
  2. 7051726,024 people
  3. 7038020,529 people
  4. 7058219,209 people
  5. 7051817,263 people
  6. 7051210,740 people
  7. 703394,848 people
  8. 7051971 people

8 ZIP Code areas overlap St. Martin Parish. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in St. Martin Parish, largest first

  1. St. Martin Parish School District51,353 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Broussard, Louisiana (city)14,322 people
  2. Morgan City, Louisiana (city)11,064 people
  3. Breaux Bridge, Louisiana (city)7,501 people
  4. St. Martinville, Louisiana (city)5,297 people
  5. Henderson, Louisiana (town)1,779 people
  6. Cecilia, Louisiana (CDP)1,742 people
  7. Cade, Louisiana (CDP)1,710 people
  8. Arnaudville, Louisiana (town)1,239 people
  9. Parks, Louisiana (village)963 people
  10. Catahoula, Louisiana (CDP)594 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Iberville Parish, Louisiana18 mi northeast
  2. Lafayette Parish, Louisiana28 mi west
  3. St. Mary Parish, Louisiana35 mi south
  4. Assumption Parish, Louisiana36 mi southeast
  5. Iberia Parish, Louisiana38 mi south
  6. St. Landry Parish, Louisiana39 mi northwest
  7. Pointe Coupee Parish, Louisiana41 mi north

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.