Southeast is a town in Putnam County, New York, home to about 18,180 people across 32 square miles. Its ZIP code is 10509, and parts of 10512 are in Southeast too.
Homes sold for a median of $291 per square foot in the three months ending August 2026, a seller’s market.
Mostly Southeast; also Patterson
Mostly Carmel; part is in Southeast
Each card is that ZIP code’s whole market, including any part outside Southeast. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Southeast’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Southeast well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | LaGuardia Airport (LGA)46 miles away |
|---|---|
| Closer regional airport | Westchester County Airport (HPN)24 miles away |
| Nearest city of 250,000+ | Jersey City, NJ54 miles away |
| Nearest city of 1 million+ | New York, NY55 miles away |
Straight-line distances from the center of Southeast; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Southeast had 18,058 residents in the 2020 census, up 4% since 2000.
It’s the 125th largest of 1,007 towns in New York by population.
Putnam County grew from 13,787 residents in 1900 to 97,668 in 2020.
Putnam County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 78°F in summer, and winter lows average 16°F. About 50.5 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Carmel 4n, NY weather station (5 miles away).
22,380 jobs at 2,868 businesses in Putnam County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
316 doctors and other health care providers list an office in Southeast.
Nearest hospitals
Providers with an office here
| Primary care doctors | 34 |
|---|---|
| Specialist doctors | 28 |
| Dentists | 24 |
| Nurse practitioners and physician assistants | 33 |
| Mental health providers | 135 |
| Physical and occupational therapists | 50 |
| Optometrists | 4 |
| Chiropractors | 8 |
| Pharmacies | 8 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (4 nearby)
Grocery stores (3 nearby)
Pharmacies (2 nearby)
Libraries
Museums
Theaters and performance venues
Counts are within about 4 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Brewster Central School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| John F Kennedy Elementary SchoolBrewster | Pre-K–2 | 592 | Public | 1.9 mi |
| C V Starr Intermediate SchoolBrewster | 3–5 | 664 | Public | 1.7 mi |
| Henry H Wells Middle SchoolBrewster | 6–8 | 656 | Public | 1.6 mi |
| Brewster High SchoolBrewster | 9–12 | 1,076 | Public | 2.1 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Green Chimneys SchoolBrewster | 2–12 | 209 | Nonsectarian | 4.0 mi |
| Longview SchoolBrewster | 5–12 | 18 | Nonsectarian | 1.0 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Carmel, Kent and Patterson.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.