County · New York
Suffolk County, New York
Suffolk County, New York. Suffolk County had 1,546,090 residents in 2025 by the Census Bureau's estimate, up 1.3% since 2020, while New York shrank 1.0%. It holds 167 places (32 cities, villages and boroughs, 10 towns and townships and 125 census-designated) and 371 census tracts. GEOID 36103.
Suffolk County is one of the 22 counties of the New York-Newark-Jersey City, NY-NJ metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
1,546,090
Census Bureau estimate (no margin published)
2020 Census count: 1,525,920 · ACS 2020-2024: 1,530,146
Median household income
$130,686
±$1,707 (90% margin)
New York: $85,974
Median home value
$578,400
±$2,887 (90% margin)
New York: $423,800
Median gross rent
$2,255
±$27 (90% margin)
New York: $1,621
How many people live in Suffolk County, and is it growing?
The 2020 Census counted 1,525,920 residents in Suffolk County. The Census Bureau estimates 1,546,090 for July 1, 2025, up 1.3% since 2020, while New York shrank 1.0%. The 2020-2024 American Community Survey puts the population at 1,530,146 over 911 square miles of land.
| Measure | Suffolk County | New York | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,530,146 | 19,852,366 | +46,314 |
| Households | 512,565±1,647 | 7,722,646 | +23,264 |
| Average household size | 2.93±0.01 | 2.49 | −0.04 |
| Housing units | 580,772±234 | 8,585,241 | +4,812 |
Suffolk County's population since 2000
From 1,419,369 in 2000 to 1,546,090 in 2025: up 8.9%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Suffolk County?
Suffolk County holds 167 places: 32 cities, villages and boroughs (incorporated places), 10 towns and townships (county subdivisions with their own government) and 125 census-designated places. The largest is Town of Brookhaven with 496,410 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Brookhaven (town) | 485,773 | $120,110 |
|---|---|---|
| Islip (town) | 339,938 | $130,132 |
| Babylon (town) | 218,223 | $128,108 |
| Huntington (town) | 204,127 | $168,029 |
| Smithtown (town) | 116,296 | $152,636 |
| Southampton (town) | 69,036 | $128,594 |
| West Babylon | 43,213 | $129,519 |
| Coram | 40,220 | $105,220 |
| Central Islip | 36,714 | $113,707 |
| Commack | 36,536 | $169,792 |
| Riverhead (town) | 35,902 | $94,249 |
| Huntington Station | 34,878 | $135,477 |
| Centereach | 30,980 | $132,240 |
| Bay Shore | 29,244 | $105,618 |
| Deer Park | 28,837 | $137,105 |
| East Hampton (town) | 28,385 | $132,348 |
| Lindenhurst | 27,148 | $130,128 |
| West Islip | 27,048 | $176,281 |
| Holbrook | 26,487 | $144,760 |
| Shirley | 26,360 | $112,788 |
| Dix Hills | 26,180 | $227,944 |
| Smithtown | 25,629 | $150,664 |
| Medford | 24,247 | $128,192 |
| Southold (town) | 23,732 | $116,667 |
| Copiague | 23,429 | $127,369 |
| East Patchogue | 21,580 | $108,397 |
| Selden | 21,262 | $108,952 |
| Hauppauge | 20,083 | $141,378 |
| East Northport | 20,048 | $157,662 |
| Huntington | 19,645 | $168,095 |
| North Bay Shore | 19,619 | $141,915 |
| Melville | 19,284 | $159,922 |
| Ronkonkoma | 18,955 | $121,673 |
| Holtsville | 18,937 | $133,679 |
| North Amityville | 18,643 | $136,654 |
| Lake Ronkonkoma | 18,619 | $101,633 |
| Islip | 18,418 | $120,909 |
| North Babylon | 17,927 | $140,342 |
| Kings Park | 17,085 | $121,136 |
| Sayville | 16,569 | $147,120 |
| Mastic | 15,404 | $94,034 |
| Hampton Bays | 15,228 | $134,216 |
| Riverhead | 14,993 | $83,008 |
| Farmingville | 14,983 | $127,988 |
| Manorville | 14,317 | $139,201 |
| Mastic Beach | 14,199 | $111,493 |
| East Islip | 13,931 | $147,996 |
| Greenlawn | 13,661 | $164,427 |
| Rocky Point | 13,633 | $127,024 |
| St. James | 13,487 | $142,368 |
| Stony Brook | 13,467 | $174,872 |
| Ridge | 13,271 | $78,528 |
| Nesconset | 13,207 | $152,500 |
| Patchogue | 12,408 | $107,306 |
| Babylon | 12,188 | $140,820 |
| North Lindenhurst | 12,000 | $123,342 |
| North Bellport | 11,900 | $100,247 |
| Miller Place | 11,723 | $146,492 |
| Mount Sinai | 11,623 | $162,188 |
| Terryville | 11,472 | $110,389 |
| Elwood | 11,426 | $177,003 |
| Lake Grove | 11,072 | $118,311 |
| East Setauket | 10,998 | $151,603 |
| Middle Island | 10,546 | $85,480 |
| Stony Brook UniversityGEOID 3671620 | 10,409 | not published |
| Bohemia | 9,852 | $125,781 |
| Fort Salonga | 9,652 | $189,856 |
| South Huntington | 9,561 | $147,569 |
| Amityville | 9,500 | $106,285 |
| Bayport | 8,609 | $147,818 |
| Springs | 8,086 | $144,836 |
| Center Moriches | 8,046 | $170,277 |
| Port Jefferson | 7,962 | $144,912 |
| Port Jefferson Station | 7,950 | $120,734 |
| Wading River | 7,731 | $136,549 |
| Baywood | 7,726 | $118,750 |
| Oakdale | 7,430 | $118,958 |
| Sound Beach | 7,416 | $132,008 |
| Northport | 7,347 | $146,921 |
| East Shoreham | 6,841 | $153,235 |
| North Patchogue | 6,751 | $107,695 |
| East Farmingdale | 6,617 | $119,000 |
| Southold | 6,040 | $128,822 |
| Yaphank | 5,974 | $108,971 |
| East Moriches | 5,946 | $139,222 |
| Calverton | 5,934 | $60,442 |
| Centerport | 5,822 | $195,357 |
| East Quogue | 5,557 | $93,710 |
| North Sea | 5,461 | $161,587 |
| West Hills | 5,385 | $185,745 |
| East Hampton North | 5,377 | $109,035 |
| Islip Terrace | 5,323 | $155,313 |
| Blue Point | 5,156 | $154,625 |
| Wheatley Heights | 5,140 | $118,036 |
| Flanders | 5,098 | $88,393 |
| West Sayville | 4,872 | $166,312 |
| Northwest Harbor | 4,637 | $160,375 |
| West Bay Shore | 4,625 | $137,083 |
| Southampton | 4,550 | $214,032 |
| Noyack | 4,325 | $118,728 |
| Mattituck | 4,322 | $121,250 |
| Montauk | 4,318 | $142,961 |
| North Great River | 4,266 | $147,143 |
| Setauket | 3,986 | $221,771 |
| Gordon Heights | 3,981 | $106,828 |
| Westhampton | 3,621 | $119,886 |
| Lloyd Harbor | 3,571 | $250,000 or more |
| Islandia | 3,567 | $116,313 |
| Cutchogue | 3,437 | $143,472 |
| Brookhaven | 3,330 | $114,839 |
| Shelter Island (town)GEOID 3610366839 | 3,253 | $133,967 |
| Brightwaters | 3,181 | $218,000 |
| Remsenburg-SpeonkGEOID 3661142 | 3,110 | $169,091 |
| Cold Spring Harbor | 3,064 | $250,000 or more |
| Moriches | 3,026 | $78,359 |
| Bridgehampton | 2,953 | $139,486 |
| Riverside, Suffolk CountyGEOID 3662066 | 2,882 | $59,318 |
| Sag Harbor | 2,772 | $129,821 |
| Baiting Hollow | 2,763 | $108,571 |
| Greenport | 2,583 | $81,094 |
| Aquebogue | 2,547 | $93,523 |
| Halesite | 2,527 | $175,368 |
| Water Mill | 2,506 | $186,875 |
| Shinnecock Hills | 2,282 | $132,708 |
| Greenport West | 2,282 | $93,983 |
| Eastport | 2,219 | $119,453 |
| Bellport | 2,203 | $146,083 |
| Westhampton Beach | 2,150 | $141,250 |
| Great River | 2,005 | $136,071 |
| Amagansett | 1,824 | $166,875 |
| Village of the Branch | 1,735 | $173,958 |
| Quogue | 1,662 | $89,896 |
| JamesportGEOID 3638253 | 1,609 | $97,005 |
| Shelter IslandGEOID 3666828 | 1,602 | $165,734 |
| Shelter Island HeightsGEOID 3666850 | 1,601 | $113,091 |
| Northville, Suffolk CountyGEOID 3653775 | 1,566 | $159,018 |
| Nissequogue | 1,564 | $172,500 |
| Head of the Harbor | 1,520 | $250,000 or more |
| East Hampton | 1,517 | $106,250 |
| Tuckahoe, Suffolk County | 1,505 | $80,500 |
| LaurelGEOID 3641465 | 1,495 | $138,726 |
| Huntington Bay | 1,446 | $250,000 or more |
| Eatons Neck | 1,334 | $234,375 |
| North Haven | 1,162 | $154,653 |
| East Marion | 1,048 | $102,500 |
| Quiogue | 1,013 | $129,405 |
| Orient | 999 | $94,261 |
| Wainscott | 904 | $130,833 |
| Poquott | 903 | $190,391 |
| Old Field | 893 | $250,000 or more |
| Belle Terre | 808 | $166,111 |
| Fire Island | 777 | $84,688 |
| SagaponackGEOID 3664452 | 770 | not published |
| NorthamptonGEOID 3651418 | 763 | $78,421 |
| Peconic | 692 | $116,250 |
| Asharoken | 592 | $141,215 |
| Shoreham | 561 | $160,625 |
| Fishers IslandGEOID 3625923 | 424 | $98,125 |
| New Suffolk | 403 | $130,875 |
| NapeagueGEOID 3649424 | 368 | $74,239 |
| Oak BeachGEOID 3654111 | 268 | not published |
| GilgoGEOID 3628990 | 185 | not published |
| Ocean BeachGEOID 3654430 | 153 | not published |
| West Hampton DunesGEOID 3680186 | 126 | $250,000 or more |
| SaltaireGEOID 3664881 | 113 | not published |
| Dering HarborGEOID 3620379 | 50 | not published |
| CaptreeGEOID 3612402 | 48 | $79,080 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Suffolk County?
The median resident of Suffolk County is 41.7 years old; 20.8% are under 18 and 17.9% are 65 or older. The largest group is non-Hispanic white residents at 62.0%, then Hispanic or Latino residents (of any race) at 22.8%. 16.8% of residents were born outside the United States.
| Measure | Suffolk County | New York | Change since 2015-2019 |
|---|---|---|---|
| Median age | 41.7±0.2 | 39.8 | no clear change |
| Under 18 years | 20.8%±0.1 pts | 20.5% | – |
| 65 years and over | 17.9%±0.1 pts | 17.9% | – |
| Hispanic or Latino (any race) | 22.8% | 19.8% | +3.5 pts |
| White alone, not Hispanic | 62.0%±0.1 pts | 52.8% | −5.6 pts |
| Black or African American alone, not Hispanic | 6.9%±0.2 pts | 13.4% | −0.4 pts |
| Asian alone, not Hispanic | 4.4%±0.1 pts | 9.0% | +0.5 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 3.0%±0.2 pts | 3.8% | – |
| Some other race alone, not Hispanic | 0.7%±0.1 pts | 1.0% | – |
| Born outside the United States | 16.8%±0.3 pts | 22.8% | +1.2 pts |
| Speak a language other than English at home (age 5+) | 24.8%±0.4 pts | 30.9% | – |
| Civilian veterans (age 18+) | 4.0%±0.1 pts | 3.7% | – |
| With a disability | 10.5%±0.2 pts | 12.6% | – |
| No health insurance coverage | 4.7%±0.2 pts | 5.1% | no clear change |
| High school graduate or higher (age 25+) | 90.4%±0.3 pts | 88.0% | – |
| Bachelor's degree or higher (age 25+) | 40.2%±0.4 pts | 40.2% | +3.9 pts |
| Graduate or professional degree (age 25+) | 18.6%±0.4 pts | 17.9% | – |
| Moved from another state in the past year | 0.7%±0.1 pts | 1.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Suffolk County earn?
Half of Suffolk County's 512,565 households earn less than $130,686 a year (±$1,707), against $85,974 in New York. In 2015-2019 the median was $124,338 in 2024 dollars, so it rose by $6,348 after inflation. 6.4% of residents live below the poverty line.
| Measure | Suffolk County | New York | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $130,686±$1,707 | $85,974 | +$6,348 |
| Mean household income | $166,220±$1,915 | $128,247 | – |
| Per capita income | $57,164±$655 | $50,712 | +$2,441 |
| People below the poverty line | 6.4%±0.3 pts | 14.0% | −0.5 pts |
| Children under 18 below the poverty line | 7.1%±0.7 pts | 18.3% | −2.0 pts |
| Households receiving SNAP | 7.2%±0.3 pts | 15.6% | – |
| Households with a broadband subscription | 93.2%±0.3 pts | 90.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Suffolk County?
Owners occupy 82.2% of Suffolk County's occupied homes and renters 17.8%. The median owner-occupied home is valued at $578,400 by its owner (±$2,887). The median renter pays $2,255 a month including utilities, and 49.0% of renters pay 35% or more of their income on rent.
| Measure | Suffolk County | New York | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $578,400±$2,887 | $423,800 | +$89,322 |
| Median gross rent | $2,255±$27 | $1,621 | +$111 |
| Renters paying 35% or more of income on rent | 49.0%±1.6 pts | 43.1% | no clear change |
| Median monthly owner costs, with a mortgage | $3,320±$17 | $2,555 | – |
| Owner-occupied homes | 82.2%±0.5 pts | 54.3% | +1.6 pts |
| Housing units | 580,772±234 | 8,585,241 | +4,812 |
| Homeowner vacancy rate | 0.6%±0.1 pts | 1.1% | – |
| Rental vacancy rate | 4.1%±0.6 pts | 3.8% | – |
| Single-family detached homes | 79.7%±0.5 pts | 41.2% | – |
| Mobile homes | 1.3%±0.1 pts | 2.1% | – |
| Built 2020 or later | 0.7%±0.1 pts | 0.8% | – |
| Built 1939 or earlier | 9.1%±0.2 pts | 30.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Suffolk County building?
Builders took permits for 1,399 new housing units across Suffolk County in 2025 (1,094 single-family), 0.9 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Suffolk County get to work?
72.1% of Suffolk County's workers drive alone and 12.0% work from home. The average trip to work takes 31.1 minutes. The unemployment rate in 2020-2024 averaged 4.7%.
| Measure | Suffolk County | New York | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 65.5%±0.4 pts | 62.7% | – |
| Unemployment rate | 4.7%±0.2 pts | 6.4% | +0.5 pts |
| Drove alone to work | 72.1%±0.4 pts | 48.8% | – |
| Carpooled | 7.5%±0.3 pts | 6.3% | – |
| Public transportation | 4.8%±0.2 pts | 21.6% | – |
| Walked | 1.4%±0.1 pts | 5.6% | – |
| Worked from home | 12.0%±0.4 pts | 14.9% | +8.2 pts |
| Mean travel time to work | 31.1 min±0.3 | 32.6 min | −1.6 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Suffolk County's census tracts?
Suffolk County is divided into 371 census tracts. Among those with a reliable estimate, median household income runs from $41,711 (Tract 1470.04) to $250,000 or more (Tract 1908.01).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Suffolk County compare with New York's other counties?
| Measure | Rank |
|---|---|
| Population | 4th of 62 |
| Growth 2020-2025 | 10th of 62 |
| Residents per square mile | 9th of 62 |
| Median household income | 2nd of 62 |
| Median home value | 8th of 62 |
| Median gross rent | 1st of 62 |
| Poverty rate | 61st of 62 |
| Bachelor's degree or higher | 12th of 62 |
| Median age | 37th of 62 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Suffolk County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.