Delaware is a town in Sullivan County, New York, home to about 2,261 people across 35 square miles. Its ZIP codes are 12723, 12745 and 12750, and parts of 12726 and 12748 are in Delaware too.
Homes sold for a median of $372 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
Mostly Delaware; also Fremont Town (Sullivan County)
All in Delaware
All in Delaware
Mostly Cochecton; part is in Delaware
Mostly Callicoon; part is in Delaware
Each card is that ZIP code’s whole market, including any part outside Delaware. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Newark Liberty International Airport (EWR)86 miles away |
|---|---|
| Closer regional airport | Wilkes-Barre/Scranton International Airport (AVP)47 miles away |
| Nearest city of 250,000+ | Newark, NJ84 miles away |
| Nearest city of 1 million+ | New York, NY95 miles away |
Straight-line distances from the center of Delaware; 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.
Delaware had 2,203 residents in the 2020 census, down 19% since 2000.
It’s the 602nd largest of 1,007 towns in New York by population.
Sullivan County grew from 32,306 residents in 1900 to 78,624 in 2020.
Sullivan County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 80°F in summer, and winter lows average 12°F. About 50.1 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Callicoon Ctr, NY weather station (6 miles away).
22,087 jobs at 2,061 businesses in Sullivan County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
23 doctors and other health care providers list an office in Delaware’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|---|
| Specialist doctors | 1 |
| Nurse practitioners and physician assistants | 9 |
| Mental health providers | 5 |
| Physical and occupational therapists | 3 |
| Chiropractors | 4 |
| Pharmacies | 1 |
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 (1 nearby)
Grocery stores (1 nearby)
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.
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Shares ZIP codes with Cochecton, Callicoon, Bethel, Fremont Town (Sullivan County) and Liberty.
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.