Maryland State Legislative Subdistrict 30B

State Legislative District Profile (Lower Chamber)

Overview

District ID
md-hd-30b
State
Maryland
Chamber
Lower chamber
District Code
30B
Land Area
106.1 sq mi
Water Area
63.2 sq mi

Boundary

Boundary of Maryland State Legislative Subdistrict 30B

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Anne Arundel County106.08 sq mi100.0%25.6%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Shady Side CDP6.65 sq mi6.3%100.0%
Mayo CDP5.62 sq mi5.3%100.0%
Deale CDP5.31 sq mi5.0%100.0%
Friendship CDP1.80 sq mi1.7%100.0%
Edgewater CDP1.72 sq mi1.6%57.5%
Riva CDP1.55 sq mi1.5%63.1%
Galesville CDP1.32 sq mi1.2%100.0%

Showing all 7 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 542,333100.0%5.5%100.0%

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

Voters

Registered Voters
34,483
Active Voters
32,706 (94.8%)

Party Registration

PartyVotersShare
Democratic10,97531.8%
Republican14,08640.8%
Unaffiliated8,85825.7%
Other parties5641.6%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202425,254 (73.2%)0 (0.0%)0 (0.0%)
2021–202217,894 (51.9%)0 (0.0%)0 (0.0%)
2019–202023,135 (67.1%)5,043 (14.6%)3,836 (11.1%)
2017–201816,884 (49.0%)2,469 (7.2%)2,305 (6.7%)
2015–201619,052 (55.3%)3,941 (11.4%)4,700 (13.6%)
2013–201412,442 (36.1%)1,955 (5.7%)2,259 (6.6%)
2011–201216,783 (48.7%)1,224 (3.5%)1,976 (5.7%)

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
42,049 (± 2,161)
Median Age
43.9
Median Household Income
$148,554 (± $8,148)
High School Graduate or Higher (age 25+)
94.5%
Bachelor's Degree or Higher (age 25+)
43.3%

Population by Age

GroupPeopleShare
Under 189,49922.6%
18 to 6424,59858.5%
65 and over7,95218.9%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)3,4488.2%
White, not Hispanic33,38379.4%
Black, not Hispanic3,0477.2%
Asian, not Hispanic3440.8%
American Indian / Alaska Native, not Hispanic180.0%
Native Hawaiian / Pacific Islander, not Hispanic500.1%
Some other race, not Hispanic1180.3%
Two or more races, not Hispanic1,6413.9%

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
41,212
Citizen Voting Age Population (CVAP)
31,756

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic38,33093.0%
Hispanic2,8827.0%
White33,77682.0%
Black3,0867.5%
Asian3200.8%
American Indian / Alaska Native180.0%
Native Hawaiian / Pacific Islander530.1%
Two or More Races830.2%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic30,59896.4%
Hispanic1,1623.7%
White26,84384.5%
Black3,0389.6%
Asian4471.4%
American Indian / Alaska Native1980.6%
Native Hawaiian / Pacific Islander370.1%
Two or More Races480.2%

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