Sidney is a town in Delaware County, New York, home to about 5,492 people across 50 square miles. Its ZIP codes are 13838 and 13839, and parts of 13775, 13825 and 13849 are in Sidney too.
Homes sold for a median of $118 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
Mostly Sidney; also Masonville and Unadilla
Mostly Sidney; also Masonville and Tompkins
Mostly Franklin Town (Delaware County); part is in Sidney
Mostly Otego; part is in Sidney
Mostly Unadilla; part is in Sidney
Each card is that ZIP code’s whole market, including any part outside Sidney. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Sidney’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Syracuse Hancock International Airport (SYR)69 miles away |
|---|---|
| Closer regional airport | Greater Binghamton/Edwin A Link field (BGM)36 miles away |
| Nearest city of 250,000+ | Newark, NJ123 miles away |
| Nearest city of 1 million+ | New York, NY133 miles away |
Straight-line distances from the center of Sidney; 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.
Sidney had 5,536 residents in the 2020 census, down 9% since 2000.
It’s the 338th largest of 1,007 towns in New York by population.
Delaware County grew from 46,413 residents in 1900 to 44,308 in 2020.
Delaware County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 82°F in summer, and winter lows average 11°F. About 45.4 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, E Sidney, NY weather station (4 miles away).
12,025 jobs at 1,114 businesses in Delaware County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
32 doctors and other health care providers list an office in Sidney’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 7 |
|---|---|
| Specialist doctors | 3 |
| Dentists | 2 |
| Nurse practitioners and physician assistants | 8 |
| Mental health providers | 6 |
| Physical and occupational therapists | 3 |
| Chiropractors | 3 |
| 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 (2 nearby)
Grocery stores (1 nearby)
Pharmacies
Libraries (2 nearby)
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.
Public schools here are run by Sidney Central School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Sidney Elementary SchoolSidney | K–6 | 477 | Public | 4.6 mi |
| Sidney Middle SchoolSidney | 7–8 | 169 | Public | 4.7 mi |
| Sidney High SchoolSidney | 9–12 | 342 | Public | 4.7 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 Unadilla, Otego, Franklin Town (Delaware County), Masonville, Butternuts, Laurens and Tompkins.
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.