Overview
- District ID
- md-hd-42a
- State
- Maryland
- Chamber
- Lower chamber
- District Code
- 42A
- Land Area
- 222.7 sq mi
- Water Area
- 5.49 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
| County | Overlap | Share of district land | Share of county land |
|---|
| Baltimore County | 222.71 sq mi | 100.0% | 37.2% |
Showing all 1 county
Places
Showing all 3 places
Overlapping Congressional Districts
| Congressional district | Population in both | Share of this district's population | Share of the congressional district's population | Share of this district's land |
|---|
| MD District 2 | 26,322 | 61.5% | 3.4% | 63.1% |
| MD District 1 | 16,512 | 38.5% | 2.1% | 36.9% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 36,669
- Active Voters
- 35,290 (96.2%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 11,926 | 32.5% |
| Republican | 15,937 | 43.5% |
| Unaffiliated | 8,169 | 22.3% |
| Other parties | 637 | 1.7% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2023–2024 | 28,293 (77.2%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 20,809 (56.7%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 27,015 (73.7%) | 5,658 (15.4%) | 5,604 (15.3%) |
| 2017–2018 | 21,032 (57.4%) | 3,554 (9.7%) | 3,493 (9.5%) |
| 2015–2016 | 23,053 (62.9%) | 5,154 (14.1%) | 6,547 (17.9%) |
| 2013–2014 | 16,221 (44.2%) | 2,752 (7.5%) | 2,588 (7.1%) |
| 2011–2012 | 20,474 (55.8%) | 1,296 (3.5%) | 2,797 (7.6%) |
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
- 41,856 (± 1,827)
- Median Age
- 47.4
- Median Household Income
- $145,116 (± $10,435)
- High School Graduate or Higher (age 25+)
- 96.9%
- Bachelor's Degree or Higher (age 25+)
- 59.8%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 9,224 | 22.0% |
| 18 to 64 | 22,777 | 54.4% |
| 65 and over | 9,855 | 23.5% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,138 | 2.7% |
| White, not Hispanic | 36,547 | 87.3% |
| Black, not Hispanic | 1,856 | 4.4% |
| Asian, not Hispanic | 971 | 2.3% |
| American Indian / Alaska Native, not Hispanic | 18 | 0.0% |
| Native Hawaiian / Pacific Islander, not Hispanic | 6 | 0.0% |
| Some other race, not Hispanic | 201 | 0.5% |
| Two or more races, not Hispanic | 1,119 | 2.7% |
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
- 41,223
- Citizen Voting Age Population (CVAP)
- 31,999
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 40,160 | 97.4% |
| Hispanic | 1,066 | 2.6% |
| White | 36,742 | 89.1% |
| Black | 1,809 | 4.4% |
| Asian | 865 | 2.1% |
| American Indian / Alaska Native | 18 | 0.0% |
| Native Hawaiian / Pacific Islander | 4 | 0.0% |
| Two or More Races | 4 | 0.0% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 31,204 | 97.5% |
| Hispanic | 794 | 2.5% |
| White | 28,780 | 89.9% |
| Black | 1,426 | 4.5% |
| Asian | 881 | 2.8% |
| American Indian / Alaska Native | 109 | 0.3% |
| Native Hawaiian / Pacific Islander | 5 | 0.0% |
| Two or More Races | 5 | 0.0% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
