akashic
1876–2024
St. Charles Parish, Louisiana
St. Charles Parish·Louisiana

St. Charles Parish changed its political identity.

A petrochemical corridor parish where refinery employment shapes the electorate

18762024·38 elections
St. Charles Parish, Louisiana · Jonathan Sorrel · Wikimedia Commons
Latest
R+32
in 2024
Archetype
Realigner
since the recent cycles
Population
51,396
2024 ACS
Most similar
Tangipahoa Parish
LA · similarity 1.00
35 precincts · 26,685 votes cast
Trump · R+32
Margin
Turnout
Harris +50
Trump +50
Real precinct boundaries. Hover for vote totals.
YearWonMarginDemocraticRepublicanTotal
2024R
−32.3%
8,81217,44326,685
2020R
−29.6%
9,80018,23328,517
2016R
−30.8%
8,55916,62126,192
2012R
−27.8%
8,89615,93725,333
2008R
−31.2%
8,52216,45725,397
2004R
−24.7%
8,85614,74723,837
2000R
−14.2%
8,91811,98121,510
1996D
+6.1%
10,6129,31621,393
1992R
−1.7%
8,8109,15820,877
1988R
−9.5%
7,9739,68517,995
1984R
−19.9%
6,78410,18517,082
1980D
+7.4%
7,8986,77915,123
1976D
+22.6%
6,8724,27011,505
1972R
−29.6%
2,7885,4699,052
1968D
+15.3%
3,0701,6759,128
1964R
−30.4%
2,7155,0857,800
1960D
+50.5%
4,7081,3776,602
1956R
−17.9%
1,6712,4174,177
1952D
+42.3%
2,6791,0863,765
1948D
+26.1%
9142862,410
1944D
+83.6%
1,9451742,119
1940D
+82.0%
1,5501531,703
1936D
+88.0%
1,503961,599
1932D
+88.4%
1,429861,519
1928D
+82.4%
1,1161081,224
1924D
+57.4%
488132620
1920D
+33.1%
18392275
1916D
+80.9%
29730330
1912D
+61.4%
15728210
1908D
+81.4%
21522237
1904D
+92.6%
31312325
1900D
+80.5%
43547482
1896R
−37.6%
125282418
1892R
−34.2%
3457041,049
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%
Polish
0.5%
African American
17.7%
Multiple ancestry combinations reported; no single grouping above 1%.
Sample size too small to break out by ancestry reliably.
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.
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
41.8%
Other Christian
4.3%
Baptist
4.3%
Non-Christian
3.3%
Pentecostal & Holiness
1.9%
Methodist
1.7%
Source · 2020 US Religion Census. Remaining 42.7% of residents not counted as adherents by any reporting body.

St. Charles Parish lines the Mississippi River between New Orleans and Baton Rouge, its economy anchored by one of the densest concentrations of industrial plants in the country. That working-class industrial base has trended decisively Republican over recent cycles, with the 2024 presidential margin reaching R+32.3.

The unraveling was not abrupt. The Democratic margin in St. Charles Parish peaked at ninety-three points in 1904; it narrowed steadily over the late twentieth century. The 2000 election delivered the county to the Republican party for the first time in many years, by a margin of fourteen points. By 2024, the margin had settled into deep Republican territory.

The economic and demographic context is severe. St. Charles Parish's median household income of $80,897 is among the lowest of any county in the United States; 12% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Tangipahoa Parish and Vernon Parish.