Maryland State Senate District 31

State Legislative District Profile (Upper Chamber)

Overview

District ID
md-sd-031
State
Maryland
Chamber
Upper chamber (state senate)
District Code
031
Land Area
70.1 sq mi
Water Area
58.4 sq mi

Boundary

Boundary of Maryland State Senate District 31

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Anne Arundel County70.12 sq mi100.0%16.9%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Pasadena CDP14.93 sq mi21.3%100.0%
Lake Shore CDP13.42 sq mi19.1%100.0%
Severna Park CDP11.40 sq mi16.3%68.9%
Gambrills CDP7.09 sq mi10.1%93.3%
Severn CDP5.82 sq mi8.3%31.7%
Glen Burnie CDP4.18 sq mi6.0%24.2%
Riviera Beach CDP2.63 sq mi3.8%100.0%
Odenton CDP1.41 sq mi2.0%9.6%

Showing all 8 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
MD District 3129,89599.4%16.8%98.4%
MD District 58440.6%0.1%1.6%

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

Voters

Registered Voters
105,608
Active Voters
100,545 (95.2%)

Party Registration

PartyVotersShare
Democratic34,27632.5%
Republican41,69439.5%
Unaffiliated27,75726.3%
Other parties1,8811.8%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202475,106 (71.1%)0 (0.0%)0 (0.0%)
2021–202250,227 (47.6%)0 (0.0%)0 (0.0%)
2019–202068,931 (65.3%)13,493 (12.8%)11,977 (11.3%)
2017–201848,624 (46.0%)6,198 (5.9%)7,067 (6.7%)
2015–201656,179 (53.2%)11,220 (10.6%)13,864 (13.1%)
2013–201435,879 (34.0%)5,330 (5.0%)7,150 (6.8%)
2011–201248,550 (46.0%)3,065 (2.9%)5,790 (5.5%)

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 12/01/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
131,163 (± 3,619)
Median Age
39.8
Median Household Income
$131,711 (± $5,440)
High School Graduate or Higher (age 25+)
93.6%
Bachelor's Degree or Higher (age 25+)
40.7%

Population by Age

GroupPeopleShare
Under 1829,61022.6%
18 to 6480,72361.5%
65 and over20,83015.9%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)9,2147.0%
White, not Hispanic96,56073.6%
Black, not Hispanic13,10810.0%
Asian, not Hispanic4,6943.6%
American Indian / Alaska Native, not Hispanic1680.1%
Native Hawaiian / Pacific Islander, not Hispanic10.0%
Some other race, not Hispanic7700.6%
Two or more races, not Hispanic6,6485.1%

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
127,397
Citizen Voting Age Population (CVAP)
98,123

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic119,70094.0%
Hispanic7,6946.0%
White97,68676.7%
Black12,67910.0%
Asian3,8183.0%
American Indian / Alaska Native1660.1%
Native Hawaiian / Pacific Islander30.0%
Two or More Races6070.5%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic93,69095.5%
Hispanic4,4324.5%
White78,41179.9%
Black10,42710.6%
Asian3,8994.0%
American Indian / Alaska Native9110.9%
Native Hawaiian / Pacific Islander30.0%
Two or More Races3280.3%

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