New York State Senate District 3

State Legislative District Profile (Upper Chamber)

Overview

District ID
ny-sd-003
State
New York
Chamber
Upper chamber (state senate)
District Code
003
Land Area
180.6 sq mi
Water Area
141.5 sq mi

Boundary

Boundary of New York State Senate District 3

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Suffolk County180.56 sq mi100.0%19.8%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Manorville CDP25.43 sq mi14.1%100.0%
Yaphank CDP13.64 sq mi7.6%100.0%
Shirley CDP11.31 sq mi6.3%100.0%
Medford CDP10.80 sq mi6.0%100.0%
East Patchogue CDP8.32 sq mi4.6%100.0%
Coram CDP8.29 sq mi4.6%60.0%
Holtsville CDP6.87 sq mi3.8%96.6%
Centereach CDP6.71 sq mi3.7%75.2%
Fire Island CDP5.99 sq mi3.3%65.3%
Brookhaven CDP5.80 sq mi3.2%100.0%
Middle Island CDP5.70 sq mi3.2%69.3%
East Moriches CDP5.43 sq mi3.0%100.0%
Center Moriches CDP5.26 sq mi2.9%100.0%
North Bellport CDP4.91 sq mi2.7%100.0%
Mastic Beach CDP4.90 sq mi2.7%100.0%
Calverton CDP4.60 sq mi2.5%17.5%
Ridge CDP4.26 sq mi2.4%32.3%
Farmingville CDP4.19 sq mi2.3%100.0%
Mastic CDP3.86 sq mi2.1%100.0%
Lake Ronkonkoma CDP3.29 sq mi1.8%72.5%
Eastport CDP3.29 sq mi1.8%73.9%
Selden CDP3.18 sq mi1.8%69.9%
Lake Grove village2.96 sq mi1.6%100.0%
Patchogue village2.26 sq mi1.3%100.0%
Moriches CDP2.07 sq mi1.1%100.0%

Showing top 25 of 31 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
NY District 1179,38355.2%23.1%62.2%
NY District 2145,58544.8%18.7%37.8%

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

Voters

Registered Voters
239,210
Active Voters
231,015 (96.6%)

Party Registration

PartyVotersShare
Democratic71,76930.0%
Republican78,45632.8%
Unaffiliated00.0%
Other parties15,2106.4%
No party recorded73,77530.8%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202638,815 (16.2%)28 (0.0%)19 (0.0%)
2023–2024157,707 (65.9%)4,915 (2.1%)3,757 (1.6%)
2021–2022115,024 (48.1%)8,144 (3.4%)16,616 (6.9%)
2019–2020151,521 (63.3%)17,231 (7.2%)663 (0.3%)
2017–2018106,485 (44.5%)12,689 (5.3%)3,768 (1.6%)
2015–2016124,145 (51.9%)16,132 (6.7%)17,878 (7.5%)
2013–201458,241 (24.3%)2,852 (1.2%)5,278 (2.2%)
2011–201295,200 (39.8%)538 (0.2%)3,169 (1.3%)

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 01/05/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
331,477 (± 3,305)
Median Age
39.3
Median Household Income
$114,420 (± $4,097)
High School Graduate or Higher (age 25+)
90.6%
Bachelor's Degree or Higher (age 25+)
31.1%

Population by Age

GroupPeopleShare
Under 1873,24422.1%
18 to 64207,26562.5%
65 and over50,96815.4%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)68,83920.8%
White, not Hispanic212,42164.1%
Black, not Hispanic23,6317.1%
Asian, not Hispanic13,6684.1%
American Indian / Alaska Native, not Hispanic5070.2%
Native Hawaiian / Pacific Islander, not Hispanic150.0%
Some other race, not Hispanic1,9100.6%
Two or more races, not Hispanic10,4863.2%

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
312,989
Citizen Voting Age Population (CVAP)
241,277

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic255,96181.8%
Hispanic57,03018.2%
White214,18168.4%
Black22,6697.2%
Asian11,0203.5%
American Indian / Alaska Native6350.2%
Native Hawaiian / Pacific Islander240.0%
Two or More Races1,4400.5%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic206,64285.6%
Hispanic34,63414.4%
White176,97873.4%
Black18,9097.8%
Asian8,9623.7%
American Indian / Alaska Native1,4230.6%
Native Hawaiian / Pacific Islander240.0%
Two or More Races8270.3%

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