Maryland State Senate District 15

State Legislative District Profile (Upper Chamber)

Overview

District ID
md-sd-015
State
Maryland
Chamber
Upper chamber (state senate)
District Code
015
Land Area
174.6 sq mi
Water Area
8.49 sq mi

Boundary

Boundary of Maryland State Senate District 15

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Montgomery County174.62 sq mi100.0%35.4%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Travilah CDP15.28 sq mi8.8%96.0%
Darnestown CDP15.18 sq mi8.7%92.7%
Potomac CDP9.16 sq mi5.2%36.4%
North Potomac CDP6.52 sq mi3.7%100.0%
Ten Mile Creek CDP5.79 sq mi3.3%99.9%
Germantown CDP5.48 sq mi3.1%32.2%
Clarksburg CDP5.01 sq mi2.9%51.9%
Poolesville town3.93 sq mi2.3%100.0%
Barnesville town0.49 sq mi0.3%100.0%
Gaithersburg city0.01 sq mi<0.1%0.1%

Showing all 10 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 872,11555.3%9.3%28.2%
MD District 658,24044.7%7.5%71.8%

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

Voters

Registered Voters
104,445
Active Voters
97,662 (93.5%)

Party Registration

PartyVotersShare
Democratic52,78750.5%
Republican17,62816.9%
Unaffiliated32,40231.0%
Other parties1,6281.6%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202471,283 (68.2%)0 (0.0%)0 (0.0%)
2021–202244,876 (43.0%)0 (0.0%)0 (0.0%)
2019–202066,321 (63.5%)21,855 (20.9%)4,904 (4.7%)
2017–201847,217 (45.2%)13,082 (12.5%)2,301 (2.2%)
2015–201651,479 (49.3%)16,589 (15.9%)5,968 (5.7%)
2013–201425,289 (24.2%)6,543 (6.3%)1,537 (1.5%)
2011–201242,735 (40.9%)4,977 (4.8%)2,683 (2.6%)

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
132,835 (± 3,522)
Median Age
42.3
Median Household Income
$171,856 (± $4,824)
High School Graduate or Higher (age 25+)
95.2%
Bachelor's Degree or Higher (age 25+)
68.6%

Population by Age

GroupPeopleShare
Under 1829,77722.4%
18 to 6480,31360.5%
65 and over22,74517.1%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)16,61212.5%
White, not Hispanic56,24642.3%
Black, not Hispanic15,09511.4%
Asian, not Hispanic36,56127.5%
American Indian / Alaska Native, not Hispanic330.0%
Native Hawaiian / Pacific Islander, not Hispanic50.0%
Some other race, not Hispanic8820.7%
Two or more races, not Hispanic7,4015.6%

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
120,053
Citizen Voting Age Population (CVAP)
91,652

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic106,81689.0%
Hispanic13,24011.0%
White56,11246.7%
Black14,82712.4%
Asian30,52325.4%
American Indian / Alaska Native340.0%
Native Hawaiian / Pacific Islander30.0%
Two or More Races6720.6%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic82,66990.2%
Hispanic8,9779.8%
White45,39449.5%
Black11,81612.9%
Asian24,80727.1%
American Indian / Alaska Native3050.3%
Native Hawaiian / Pacific Islander40.0%
Two or More Races3760.4%

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