St. Martin Parish, Louisiana

7 cities & places have their primary county here.

Population: 51,559
Median household income: $53,394
Median home value: $151,000

St. Martin Parish is a county in Louisiana with a population of 51,559. 7 cities and places have their primary county here. At $53,394, its median household income sits below Louisiana's $60,023.

Between 2019 and 2023, St. Martin Parish's population declined 4.0% from 53,732 to 51,559, while its median household income rose 9.7% from $48,656 to $53,394.

84.8% of workers drive to work alone. 69.1% of homes are single-family detached houses.

Demographics

ACS 2019–2023

Population: 51,559
Median age: 39.7 yrs
Median household income: $53,394
Median home value: $151,000
Median gross rent: $865
Housing units: 23,704
Homeownership rate: 78.9%
Bachelor's degree or higher: 15.3%
Unemployment rate: 5.1%

Trends

ACS 5-year · 2019–2023

Population

53,73251,559

Median household income

$48,656$53,394

Median home value

$124,900$151,000

Median gross rent

$658$865

Year	Population	Median household income	Median home value	Median gross rent
2019	53,732	$48,656	$124,900	$658
2020	53,607	$48,884	$123,700	$686
2021	52,222	$46,711	$125,200	$740
2022	51,856	$50,806	$139,900	$773
2023	51,559	$53,394	$151,000	$865

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 56.2%

5 to 1717.9%

18 to 247.7%

25 to 3412.8%

35 to 4412.6%

45 to 5412.1%

55 to 6414.1%

65 to 7410.3%

75 and over6.3%

	Count	Share
Under 5	3,195	6.2%
5 to 17	9,232	17.9%
18 to 24	3,983	7.7%
25 to 34	6,601	12.8%
35 to 44	6,474	12.6%
45 to 54	6,258	12.1%
55 to 64	7,272	14.1%
65 to 74	5,293	10.3%
75 and over	3,251	6.3%

Race & ethnicity

	Count	Share
White (non-Hispanic)	32,850	63.7%
Black or African American	14,732	28.6%
American Indian & Alaska Native	86	0.2%
Asian	474	0.9%
Native Hawaiian & Pacific Islander	53	0.1%
Some other race	92	0.2%
Two or more races	1,526	3.0%
Hispanic or Latino (any race)	1,746	3.4%

Educational attainment (age 25+)

No high school diploma17.1%

High school graduate44.7%

Some college or associate's22.9%

Bachelor's degree11.0%

Graduate or professional degree4.3%

	Count	Share
No high school diploma	6,018	17.1%
High school graduate	15,703	44.7%
Some college or associate's	8,035	22.9%
Bachelor's degree	3,870	11.0%
Graduate or professional degree	1,523	4.3%

Commute to work

Mean travel time to work: 28 min

Drove alone84.8%

Carpooled6.6%

Public transit0.2%

Walked1.2%

Bicycle0.2%

Worked from home6.3%

Other means0.7%

How workers get to work

	Count	Share
Drove alone	19,018	84.8%
Carpooled	1,476	6.6%
Public transit	56	0.2%
Walked	273	1.2%
Bicycle	41	0.2%
Worked from home	1,408	6.3%
Other means	163	0.7%

Travel time

	Count	Share
Under 15 min	6,006	28.6%
15 to 29 min	6,628	31.5%
30 to 44 min	4,935	23.5%
45 to 59 min	1,535	7.3%
60+ min	1,923	9.1%

Households

Average household size: 2.57
Poverty rate: 16.6% (8,461 of 51,085)

	Count	Share
Family households	12,952	64.9%
Nonfamily households	7,011	35.1%

Housing

Median year structure built: 1987

Occupancy

	Count	Share
Occupied	19,963	84.2%
Vacant	3,741	15.8%

Tenure (of occupied units)

	Count	Share
Owner-occupied	15,744	78.9%
Renter-occupied	4,219	21.1%

1-unit, detached69.1%

1-unit, attached0.6%

2 to 4 units2.9%

5 to 19 units0.8%

20 or more units0.6%

Mobile home & other25.9%

Units in structure

	Count	Share
1-unit, detached	16,391	69.1%
1-unit, attached	153	0.6%
2 to 4 units	690	2.9%
5 to 19 units	180	0.8%
20 or more units	143	0.6%
Mobile home & other	6,147	25.9%

Geography

County GEOID: 22099
State: Louisiana
Land area: 738 sq mi
Water area: 79 sq mi
Center point: 30.1214, -91.6115