St. Martin Parish Population

1810–2026

50,911

2026 projection

1.4% since 2020 (decrease)

010K20K30K40K50K60K1850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for St. Martin Parish. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202650,911-1950.38%
202551,106-1950.38%
202451,301+1500.29%
202351,151-1560.30%
202251,307-2640.51%
202151,571-450.09%
202051,616-1,8813.52%
201953,497-1320.25%
201853,629-4960.92%
201754,125+2960.55%

Showing 10 of 36 years.

St. Martin Parish Demographics

40.1median age

Median age

Female40.5 yrs
Male39.6 yrs

Adults

39,017
8,834 seniors (65+) · 23% of adults30,183 other adults

Sex

Female 50.9% · 26,147Male 49.1% · 25,206

Population by age

MaleFemale85+ years, male: 21385+ years, female: 47980–84 years, male: 32380–84 years, female: 59875–79 years, male: 93075–79 years, female: 82670–74 years, male: 1,17770–74 years, female: 1,14365–69 years, male: 1,46565–69 years, female: 1,68060–64 years, male: 1,64260–64 years, female: 1,76755–59 years, male: 1,82355–59 years, female: 1,87950–54 years, male: 1,48150–54 years, female: 1,66945–49 years, male: 1,42845–49 years, female: 1,54740–44 years, male: 1,99140–44 years, female: 1,67235–39 years, male: 1,54435–39 years, female: 1,58730–34 years, male: 1,35730–34 years, female: 1,72425–29 years, male: 1,48725–29 years, female: 1,56620–24 years, male: 1,59320–24 years, female: 1,45115–19 years, male: 1,64415–19 years, female: 1,52810–14 years, male: 2,14710–14 years, female: 1,5515–9 years, male: 1,3445–9 years, female: 1,9310–4 years, male: 1,6170–4 years, female: 1,54985+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 514 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

St. Martin Parish Income

$55,960median household income

Median household income

$55,960

Half of households earn more, half earn less

Median earnings

$46,046

Typical yearly pay for a worker 25 or older.

Poverty rate

15.3%

About 1 in 7 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

St. Martin Parish Marital Status

46% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married46%49%44%
Never married34%39%30%
Divorced12%9%14%
Widowed6%2%10%
Separated2%2%3%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year