Greenwich is a town in Washington County, New York, home to about 4,850 people across 44 square miles. Its ZIP codes are 12823 and 12834, and parts of 12865 are in Greenwich too.
Homes sold for a median of $157 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
Mostly Greenwich; also Easton and Fort Edward
Mostly Salem; part is in Greenwich
Each card is that ZIP code’s whole market, including any part outside Greenwich. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Greenwich’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Albany International Airport (ALB)30 miles away |
|---|---|
| Nearest city of 250,000+ | Boston, MA136 miles away |
| Nearest city of 1 million+ | New York, NY171 miles away |
Straight-line distances from the center of Greenwich; 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.
Greenwich had 4,868 residents in the 2020 census, down 1% since 2000.
It’s the 372nd largest of 1,007 towns in New York by population.
Washington County grew from 45,624 residents in 1900 to 61,302 in 2020.
Washington County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 11°F. About 43.5 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Buskirk, NY weather station (12 miles away).
10,696 jobs at 1,065 businesses in Washington County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
39 doctors and other health care providers list an office in Greenwich’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 4 |
|---|---|
| Dentists | 2 |
| Nurse practitioners and physician assistants | 8 |
| Mental health providers | 10 |
| Physical and occupational therapists | 8 |
| Optometrists | 3 |
| Chiropractors | 4 |
| Pharmacies | 3 |
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 (10 nearby)
Grocery stores (1 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Theaters and performance venues
Counts are within about 4.5 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.
Established in 1803.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Greenwich Central School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Greenwich Elementary SchoolGreenwich | Pre-K–6 | 452 | Public | 1.6 mi |
| Greenwich Junior-Senior High SchoolGreenwich | 7–12 | 410 | Public | 1.6 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Salem, Easton, Hebron, Fort Edward, Cambridge, Jackson and Argyle.
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.