New Jersey State Senate District 15

State Legislative District Profile (Upper Chamber)

Overview

District ID
nj-sd-015
State
New Jersey
Chamber
Upper chamber (state senate)
District Code
015
Land Area
254.4 sq mi
Water Area
4.4 sq mi

Boundary

Boundary of New Jersey 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
Mercer County129.81 sq mi51.0%57.8%
Hunterdon County124.52 sq mi49.0%29.1%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Trenton city7.58 sq mi3.0%99.6%
Princeton Junction CDP1.82 sq mi0.7%100.0%
Ringoes CDP1.71 sq mi0.7%100.0%
Frenchtown borough1.13 sq mi0.4%100.0%
Lambertville city1.08 sq mi0.4%100.0%
Lawrenceville CDP1.04 sq mi0.4%100.0%
Pennington borough0.96 sq mi0.4%100.0%
Hopewell borough0.72 sq mi0.3%100.0%
Stockton borough0.55 sq mi0.2%100.0%
Titusville CDP0.50 sq mi0.2%100.0%
The College of New Jersey CDP0.43 sq mi0.2%99.9%
Washington Crossing CDP0.25 sq mi0.1%100.0%

Showing all 12 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
NJ District 12179,86476.8%23.2%42.5%
NJ District 333,07714.1%4.3%8.5%
NJ District 721,2889.1%2.7%49.0%

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

Voters

Registered Voters
157,882
Active Voters
143,676 (91.0%)

Party Registration

PartyVotersShare
Democratic74,22447.0%
Republican24,49915.5%
Unaffiliated57,09036.2%
Other parties2,0691.3%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202676,486 (48.4%)23,675 (15.0%)6,797 (4.3%)
2023–202497,493 (61.8%)19,020 (12.0%)5,114 (3.2%)
2021–202270,734 (44.8%)18,236 (11.6%)6,329 (4.0%)
2019–2020100,262 (63.5%)27,965 (17.7%)6,135 (3.9%)
2017–201873,859 (46.8%)18,184 (11.5%)4,184 (2.7%)
2015–201679,776 (50.5%)23,158 (14.7%)5,762 (3.6%)
2013–201451,832 (32.8%)14,996 (9.5%)3,546 (2.2%)
2011–201268,284 (43.3%)5,418 (3.4%)2,327 (1.5%)

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 01/02/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
232,709 (± 391)
Median Age
39.8
Median Household Income
$95,296 (± $4,646)
High School Graduate or Higher (age 25+)
87.6%
Bachelor's Degree or Higher (age 25+)
45.8%

Population by Age

GroupPeopleShare
Under 1852,45822.5%
18 to 64143,66961.7%
65 and over36,58215.7%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)56,66824.4%
White, not Hispanic89,19338.3%
Black, not Hispanic52,56922.6%
Asian, not Hispanic25,90911.1%
American Indian / Alaska Native, not Hispanic1040.0%
Native Hawaiian / Pacific Islander, not Hispanic00.0%
Some other race, not Hispanic1,0170.4%
Two or more races, not Hispanic7,2493.1%

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
197,946
Citizen Voting Age Population (CVAP)
150,739

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic160,35481.0%
Hispanic37,59119.0%
White87,91644.4%
Black49,52925.0%
Asian17,5658.9%
American Indian / Alaska Native1020.1%
Native Hawaiian / Pacific Islander00.0%
Two or More Races8480.4%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic128,47685.2%
Hispanic22,26414.8%
White75,45450.1%
Black38,81525.7%
Asian13,4068.9%
American Indian / Alaska Native5330.4%
Native Hawaiian / Pacific Islander00.0%
Two or More Races3880.3%

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