New Jersey State Senate District 16

State Legislative District Profile (Upper Chamber)

Overview

District ID
nj-sd-016
State
New Jersey
Chamber
Upper chamber (state senate)
District Code
016
Land Area
287.5 sq mi
Water Area
6.37 sq mi

Boundary

Boundary of New Jersey State Senate District 16

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Hunterdon County120.63 sq mi42.0%28.2%
Somerset County108.28 sq mi37.7%35.9%
Middlesex County40.61 sq mi14.1%13.1%
Mercer County17.95 sq mi6.2%8.0%

Showing all 4 counties

Places

PlaceOverlapShare of district landShare of place land
Princeton17.95 sq mi6.2%100.0%
Neshanic Station CDP9.38 sq mi3.3%100.0%
Hillsborough CDP8.00 sq mi2.8%100.0%
Blackwells Mills CDP6.46 sq mi2.2%84.1%
Monmouth Junction CDP4.38 sq mi1.5%100.0%
Belle Mead CDP4.03 sq mi1.4%100.0%
Kendall Park CDP3.78 sq mi1.3%100.0%
Neshanic CDP3.57 sq mi1.2%100.0%
Heathcote CDP3.13 sq mi1.1%100.0%
White House Station CDP2.52 sq mi0.9%100.0%
Dayton CDP2.41 sq mi0.8%100.0%
High Bridge borough2.39 sq mi0.8%100.0%
Flagtown CDP1.71 sq mi0.6%100.0%
Skillman CDP1.47 sq mi0.5%100.0%
Annandale CDP1.45 sq mi0.5%100.0%
Clinton town1.35 sq mi0.5%100.0%
Deans CDP1.12 sq mi0.4%100.0%
Flemington borough1.08 sq mi0.4%100.0%
Lebanon borough0.90 sq mi0.3%100.0%
Harlingen CDP0.81 sq mi0.3%100.0%
Millstone borough0.68 sq mi0.2%99.9%
Rocky Hill borough0.61 sq mi0.2%100.0%
Blawenburg CDP0.61 sq mi0.2%100.0%
Three Bridges CDP0.53 sq mi0.2%100.0%
Kingston CDP0.51 sq mi0.2%27.2%

Showing all 25 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 12142,43962.8%18.4%43.6%
NJ District 784,32237.2%10.9%56.4%

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

Voters

Registered Voters
178,497
Active Voters
165,094 (92.5%)

Party Registration

PartyVotersShare
Democratic64,96536.4%
Republican46,65926.1%
Unaffiliated65,41036.6%
Other parties1,4630.8%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–2026100,256 (56.2%)22,935 (12.8%)15,479 (8.7%)
2023–2024126,491 (70.9%)18,476 (10.4%)12,771 (7.2%)
2021–202295,188 (53.3%)15,352 (8.6%)15,396 (8.6%)
2019–2020124,899 (70.0%)26,316 (14.7%)14,576 (8.2%)
2017–201889,748 (50.3%)15,075 (8.4%)10,395 (5.8%)
2015–201695,008 (53.2%)17,767 (10.0%)12,659 (7.1%)
2013–201457,813 (32.4%)9,455 (5.3%)8,117 (4.5%)
2011–201277,099 (43.2%)5,382 (3.0%)6,207 (3.5%)

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
229,368 (± 411)
Median Age
41.7
Median Household Income
$160,259 (± $4,661)
High School Graduate or Higher (age 25+)
96.4%
Bachelor's Degree or Higher (age 25+)
67.9%

Population by Age

GroupPeopleShare
Under 1848,68321.2%
18 to 64143,70462.7%
65 and over36,98116.1%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)20,3388.9%
White, not Hispanic132,39557.7%
Black, not Hispanic9,4274.1%
Asian, not Hispanic57,20424.9%
American Indian / Alaska Native, not Hispanic1160.1%
Native Hawaiian / Pacific Islander, not Hispanic470.0%
Some other race, not Hispanic1,2020.5%
Two or more races, not Hispanic8,6393.8%

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
204,888
Citizen Voting Age Population (CVAP)
159,550

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic187,34391.4%
Hispanic17,5458.6%
White130,40563.6%
Black9,1684.5%
Asian41,78120.4%
American Indian / Alaska Native720.0%
Native Hawaiian / Pacific Islander480.0%
Two or More Races7770.4%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic147,31692.3%
Hispanic12,2337.7%
White107,96367.7%
Black8,1195.1%
Asian30,46919.1%
American Indian / Alaska Native4360.3%
Native Hawaiian / Pacific Islander470.0%
Two or More Races4320.3%

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