Louisiana State Senate District 20

State Legislative District Profile (Upper Chamber)

Overview

District ID
la-sd-020
State
Louisiana
Chamber
Upper chamber (state senate)
District Code
020
Land Area
1,519.2 sq mi
Water Area
1,214.5 sq mi

Boundary

Boundary of Louisiana State Senate District 20

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Terrebonne Parish860.65 sq mi56.6%70.0%
Lafourche Parish656.67 sq mi43.2%61.5%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Bayou Blue CDP20.17 sq mi1.3%86.7%
Dulac CDP15.98 sq mi1.1%99.9%
Cut Off CDP14.64 sq mi1.0%100.0%
Houma city14.47 sq mi1.0%100.0%
Galliano CDP11.14 sq mi0.7%100.0%
Larose CDP10.87 sq mi0.7%100.0%
Bourg CDP5.65 sq mi0.4%100.0%
Chauvin CDP4.76 sq mi0.3%100.0%
Raceland CDP4.33 sq mi0.3%20.1%
Montegut CDP4.21 sq mi0.3%99.9%
Bayou Cane CDP2.74 sq mi0.2%35.9%
Golden Meadow town2.45 sq mi0.2%100.0%
Lafourche Crossing CDP1.53 sq mi0.1%36.4%
Lockport Heights CDP1.31 sq mi0.1%100.0%
Lockport town1.13 sq mi0.1%100.0%
Presquille CDP0.78 sq mi0.1%100.0%
Bayou Country Club CDP0.78 sq mi0.1%100.0%
Thibodaux city0.66 sq mi<0.1%9.8%
Mathews CDP0.20 sq mi<0.1%5.0%

Showing all 19 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 382,82767.1%10.7%57.5%
LA District 140,61832.9%5.2%42.5%

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

Voters

Registered Voters
68,305
Active Voters
59,906 (87.7%)

Party Registration

PartyVotersShare
Democratic16,55124.2%
Republican31,59946.3%
Unaffiliated19,64528.8%
Other parties5100.7%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202448,360 (70.8%)0 (0.0%)0 (0.0%)
2021–202232,158 (47.1%)0 (0.0%)0 (0.0%)
2019–202048,228 (70.6%)0 (0.0%)0 (0.0%)
2017–201831,473 (46.1%)0 (0.0%)0 (0.0%)
2015–201641,393 (60.6%)0 (0.0%)0 (0.0%)
2013–201427,678 (40.5%)0 (0.0%)0 (0.0%)
2011–201236,144 (52.9%)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
117,274 (± 2,482)
Median Age
39.7
Median Household Income
$66,846 (± $3,638)
High School Graduate or Higher (age 25+)
83.6%
Bachelor's Degree or Higher (age 25+)
19.1%

Population by Age

GroupPeopleShare
Under 1828,69524.5%
18 to 6469,13058.9%
65 and over19,44916.6%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)7,9756.8%
White, not Hispanic82,85170.6%
Black, not Hispanic13,73711.7%
Asian, not Hispanic9870.8%
American Indian / Alaska Native, not Hispanic5,5664.7%
Native Hawaiian / Pacific Islander, not Hispanic150.0%
Some other race, not Hispanic2790.2%
Two or more races, not Hispanic5,8645.0%

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
114,583
Citizen Voting Age Population (CVAP)
86,158

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic108,82295.0%
Hispanic5,7625.0%
White83,71473.1%
Black13,74812.0%
Asian7120.6%
American Indian / Alaska Native5,5684.9%
Native Hawaiian / Pacific Islander150.0%
Two or More Races4880.4%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic82,82596.1%
Hispanic3,3383.9%
White65,71076.3%
Black10,82912.6%
Asian6340.7%
American Indian / Alaska Native5,7576.7%
Native Hawaiian / Pacific Islander170.0%
Two or More Races1940.2%

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