Louisiana State House District 18

State Legislative District Profile (Lower Chamber)

Overview

District ID
la-hd-018
State
Louisiana
Chamber
Lower chamber
District Code
018
Land Area
1,237.5 sq mi
Water Area
72.5 sq mi

Boundary

Boundary of Louisiana State House District 18

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Pointe Coupee Parish556.88 sq mi45.0%100.0%
West Feliciana Parish403.32 sq mi32.6%100.0%
West Baton Rouge Parish147.16 sq mi11.9%76.5%
Iberville Parish132.61 sq mi10.7%21.5%

Showing all 4 counties

Places

PlaceOverlapShare of district landShare of place land
Erwinville CDP9.52 sq mi0.8%100.0%
New Roads city4.58 sq mi0.4%100.0%
Addis town2.54 sq mi0.2%60.5%
Fordoche town2.43 sq mi0.2%100.0%
Ventress CDP2.03 sq mi0.2%100.0%
Livonia town1.89 sq mi0.2%100.0%
St. Francisville town1.83 sq mi0.1%100.0%
Morganza village1.21 sq mi0.1%100.0%
Maringouin town0.74 sq mi0.1%100.0%

Showing all 9 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
LA District 629,65763.8%3.8%56.8%
LA District 515,31032.9%2.0%32.5%
LA District 21,5273.3%0.2%10.7%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
29,574
Active Voters
27,148 (91.8%)

Party Registration

PartyVotersShare
Democratic12,52942.4%
Republican10,11234.2%
Unaffiliated6,75122.8%
Other parties1820.6%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202422,957 (77.6%)0 (0.0%)0 (0.0%)
2021–202218,041 (61.0%)0 (0.0%)0 (0.0%)
2019–202022,552 (76.3%)0 (0.0%)0 (0.0%)
2017–201817,111 (57.9%)0 (0.0%)0 (0.0%)
2015–201619,680 (66.5%)0 (0.0%)0 (0.0%)
2013–201415,337 (51.9%)0 (0.0%)0 (0.0%)
2011–201218,321 (61.9%)0 (0.0%)0 (0.0%)

Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.

Browse the voter list for this district (premium access; sign-in required)

Source: Civitech voter file snapshot as of 09/11/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
46,400 (± 1,092)
Median Age
41.6
Median Household Income
$71,458 (± $4,692)
High School Graduate or Higher (age 25+)
84.3%
Bachelor's Degree or Higher (age 25+)
20.4%

Population by Age

GroupPeopleShare
Under 189,87021.3%
18 to 6428,08760.5%
65 and over8,44318.2%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)1,7983.9%
White, not Hispanic25,49654.9%
Black, not Hispanic17,71838.2%
Asian, not Hispanic790.2%
American Indian / Alaska Native, not Hispanic1450.3%
Native Hawaiian / Pacific Islander, not Hispanic00.0%
Some other race, not Hispanic1330.3%
Two or more races, not Hispanic1,0312.2%

Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.

Citizen Voting Age Population

Total Citizen Population
46,109
Citizen Voting Age Population (CVAP)
36,250

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic44,52596.6%
Hispanic1,5833.4%
White25,66455.7%
Black17,85138.7%
Asian800.2%
American Indian / Alaska Native1460.3%
Native Hawaiian / Pacific Islander00.0%
Two or More Races480.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic35,34097.5%
Hispanic9112.5%
White20,05255.3%
Black14,88441.1%
Asian1240.3%
American Indian / Alaska Native4641.3%
Native Hawaiian / Pacific Islander00.0%
Two or More Races330.1%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).