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County · Louisiana

St. Martin Parish

51,218Population
-1.0 %Change since 2020
-181Net migration
3.9 %Unemployment rate

Facts

Population
51,218 (2024)
Change since 2020
-1.0 %
Net migration
-181 (2023)
Unemployment rate
3.9 % (2025)
Population base, April 2020
51,746 (2020)
Births
662 (2023)
Births per 1,000 residents, 2023
12.9
Deaths
606 (2023)
Deaths per 1,000 residents, 2023
11.8
Natural change, 2023
56
International migration
101 (2023)
Domestic migration
-282 (2023)
Net migration per 1,000, 2023
-3.5
Postal code
LA
FIPS code
22099

Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS

Unemployment rate, annual average

199020253.95.7
PeriodValue
20253.9 %
20244.0 %
20233.3 %
20223.4 %
20215.3 %
20208.0 %
20194.5 %
20184.8 %
20175.6 %
20167.2 %
20156.8 %
20145.6 %

Population estimates, 2020–2024

2020202451.2K51.6K
PeriodValue
202451,218
202351,122
202251,260
202151,550
202051,614