New York State Senate District 1

State Legislative District Profile (Upper Chamber)

Overview

District ID
ny-sd-001
State
New York
Chamber
Upper chamber (state senate)
District Code
001
Land Area
427.9 sq mi
Water Area
1,098.4 sq mi

Boundary

Boundary of New York State Senate District 1

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Suffolk County428.21 sq mi100.0%47.0%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Calverton CDP21.62 sq mi5.1%82.5%
Montauk CDP18.49 sq mi4.3%100.0%
Riverhead CDP15.09 sq mi3.5%100.0%
Northwest Harbor CDP14.47 sq mi3.4%100.0%
Bridgehampton CDP13.01 sq mi3.0%100.0%
Hampton Bays CDP12.94 sq mi3.0%100.0%
Westhampton CDP12.66 sq mi3.0%100.0%
Flanders CDP11.50 sq mi2.7%100.0%
Northampton CDP11.37 sq mi2.7%100.0%
Rocky Point CDP11.32 sq mi2.6%100.0%
North Sea CDP11.05 sq mi2.6%100.0%
Water Mill CDP10.58 sq mi2.5%100.0%
Southold CDP10.46 sq mi2.4%100.0%
Wading River CDP9.78 sq mi2.3%100.0%
Cutchogue CDP9.78 sq mi2.3%100.0%
Mattituck CDP8.98 sq mi2.1%100.0%
Ridge CDP8.93 sq mi2.1%67.7%
East Quogue CDP8.71 sq mi2.0%100.0%
Springs CDP8.48 sq mi2.0%100.0%
Noyack CDP8.40 sq mi2.0%100.0%
Northville village7.40 sq mi1.7%100.0%
Southampton village6.74 sq mi1.6%100.0%
Wainscott CDP6.73 sq mi1.6%99.9%
Amagansett CDP6.59 sq mi1.5%100.0%
Shelter Island CDP6.56 sq mi1.5%100.0%

Showing top 25 of 72 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 1325,301100.0%41.9%100.0%

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

Voters

Registered Voters
252,052
Active Voters
243,726 (96.7%)

Party Registration

PartyVotersShare
Democratic82,24432.6%
Republican78,10931.0%
Unaffiliated00.0%
Other parties15,0906.0%
No party recorded76,60930.4%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202666,448 (26.4%)76 (0.0%)22 (0.0%)
2023–2024173,798 (69.0%)16,027 (6.4%)5,290 (2.1%)
2021–2022137,031 (54.4%)15,221 (6.0%)17,668 (7.0%)
2019–2020168,679 (66.9%)25,988 (10.3%)614 (0.2%)
2017–2018126,523 (50.2%)20,730 (8.2%)6,033 (2.4%)
2015–2016139,293 (55.3%)22,706 (9.0%)20,993 (8.3%)
2013–201478,515 (31.2%)5,788 (2.3%)7,218 (2.9%)
2011–2012112,156 (44.5%)1,877 (0.7%)4,406 (1.7%)

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
323,808 (± 3,278)
Median Age
45.3
Median Household Income
$123,648 (± $3,269)
High School Graduate or Higher (age 25+)
92.8%
Bachelor's Degree or Higher (age 25+)
46.2%

Population by Age

GroupPeopleShare
Under 1860,19518.6%
18 to 64189,93358.7%
65 and over73,68022.8%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)55,73517.2%
White, not Hispanic228,35370.5%
Black, not Hispanic11,7613.6%
Asian, not Hispanic15,1834.7%
American Indian / Alaska Native, not Hispanic5400.2%
Native Hawaiian / Pacific Islander, not Hispanic170.0%
Some other race, not Hispanic2,3670.7%
Two or more races, not Hispanic9,8523.0%

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
301,442
Citizen Voting Age Population (CVAP)
242,756

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic260,17686.3%
Hispanic41,26313.7%
White229,51576.1%
Black11,6823.9%
Asian12,1364.0%
American Indian / Alaska Native5450.2%
Native Hawaiian / Pacific Islander320.0%
Two or More Races1,1700.4%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic217,08589.4%
Hispanic25,67510.6%
White193,14279.6%
Black11,6634.8%
Asian10,6724.4%
American Indian / Alaska Native1,2130.5%
Native Hawaiian / Pacific Islander300.0%
Two or More Races7730.3%

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