St. Mary Parish, Louisiana

2024 results by precinct

46 precincts · 20,897 votes cast

Trump · R+32

Harris +50

Trump +50

Real precinct boundaries. Hover for vote totals.

38 presidential elections

Year	Won	Margin	Democratic	Republican	Total
2024	R	−31.9%	7,011	13,671	20,897
2020	R	−29.1%	8,055	14,811	23,186
2016	R	−27.6%	8,050	14,359	22,877
2012	R	−18.8%	9,450	13,885	23,640
2008	R	−16.8%	9,345	13,183	22,903
2004	R	−14.7%	9,547	12,877	22,694
2000	R	−6.8%	9,851	11,325	21,810
1996	D	+19.4%	12,402	8,018	22,569
1992	D	+7.9%	10,648	8,792	23,440
1988	R	−5.3%	10,364	11,540	22,318
1984	R	−23.5%	9,411	15,275	24,974
1980	D	+0.6%	10,506	10,378	21,606
1976	D	+2.6%	9,401	8,919	18,708
1972	R	−41.1%	4,435	11,117	16,243
1968	D	+4.4%	5,312	4,586	16,659
1964	R	−14.0%	5,530	7,327	12,857
1960	D	+34.0%	6,671	2,992	10,832
1956	R	−25.5%	2,395	4,097	6,663
1952	R	−1.9%	4,249	4,417	8,666
1948	D	+2.7%	918	824	3,503
1944	D	+73.9%	3,591	538	4,129
1940	D	+66.6%	3,686	739	4,425
1936	D	+59.9%	1,942	487	2,429
1932	D	+62.8%	2,072	473	2,545
1928	D	+48.7%	1,754	605	2,359
1924	D	+0.5%	639	633	1,300
1920	R	−18.8%	539	788	1,327
1916	D	+34.5%	652	162	1,419
1912	D	+47.7%	652	147	1,058
1908	D	+46.2%	767	273	1,070
1904	D	+58.8%	749	193	946
1900	D	+14.9%	818	606	1,424
1896	D	+0.9%	591	580	1,200
1892	D	+64.4%	1,311	284	1,595
1888	—	No data	—	—	—
1884	—	No data	—	—	—
1880	—	No data	—	—	—
1876	—	No data	—	—	—

Demographics

Race, ethnicity, and ancestry

Click any group to see the ancestries typically reported within it.

American

100.0%

African American

23.1%

Multiple ancestry combinations reported; no single grouping above 1%.

American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.

Source · American Community Survey 5-year estimates, 2024 release. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.

Age distribution by sex

Median age: 39.7 in this county, 39.1 nationally

Male

Age

Female

0.7%

85+

1.2%

2.3%

75–84

3.3%

5.2%

65–74

5.6%

7.3%

55–64

7.3%

5.6%

45–54

5.9%

6.1%

35–44

5.9%

5.6%

25–34

5.9%

3.8%

18–24

3.7%

8.7%

5–17

9.1%

3.1%

3.5%

Source · American Community Survey 5-year estimates, 2024 release.

Median household income

2024 inflation-adjusted dollars

$52,576

St. Mary Parish ranks in the bottom 25% of US counties.

St. Mary Parish$52,576

Louisiana$60,756

United States$80,734

Source · American Community Survey 5-year estimates, 2024 release.

Poverty rate

All persons below federal poverty line

20.8%

Children face moderate poverty.

Children under 1818.0%

Working age (18–64)100.0%

Seniors (65+)18.0%

Source · American Community Survey 5-year estimates, 2024 release.

Language at home

Population aged 5 and older

0.0%

speak English only

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Catholic & Orthodox

28.9%

Other Christian

11.3%

Baptist

10.5%

Pentecostal & Holiness

6.3%

Methodist

4.1%

Mainline Protestant

0.3%

Source · 2020 US Religion Census. Remaining 38.6% of residents not counted as adherents by any reporting body.

St. Mary Parish sits at the edge of Louisiana's Atchafalaya Basin, where the offshore energy industry anchors both the local economy and a voter profile that has shifted decisively rightward over the past two decades, reaching an R+31.9 margin in 2024.

The shift began with civil rights. 2000 marked the realignment in St. Mary Parish, by a seven points margin. The Republican margin reached its widest at forty-one points in 1972. The 2024 margin was thirty-two points.

The political shift has tracked, in St. Mary Parish, the political shift of the South more broadly. A 57% non-Hispanic-white share, a median household income of $52,576, and a 21% poverty rate describe the demographic context. The county's voting pattern over the last decade is most similar to that of Wheeler County and Lanier County.

Most similar counties

St. Mary Parish voted Democratic for a century. The shift began with civil rights.