Winchester is a city in Nez Perce County, Idaho, home to about 302 people across 0.2 square miles. Its ZIP code is 83555.
Homes sold for a median of $281 per square foot in the three months ending August 2026, a buyer’s market.
Each card is that ZIP code’s whole market, including any part outside Winchester. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Winchester’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Spokane International Airport (GEG)105 miles away |
|---|---|
| Closer regional airport | Lewiston Nez Perce County Airport (LWS)21 miles away |
| Nearest city of 250,000+ | Seattle, WA287 miles away |
Straight-line distances from the center of Winchester; 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.
Winchester had 356 residents in the 2020 census, up 16% since 2000.
It’s the 174th largest of 232 towns in Idaho by population.
Nez Perce County grew from 13,748 residents in 1900 to 42,090 in 2020.
Nez Perce County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 79°F in summer, and winter lows average 22°F. About 21.9 inches of rain and melted snow fall in a typical year, with about 87 inches of snow.
Source: NOAA 1991–2020 climate normals, Winchester, ID weather station (about a mile away).
17,985 jobs at 1,213 businesses in Nez Perce County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
3 doctors and other health care providers list an office in Winchester.
Nearest hospitals
Providers with an office here
| Mental health providers | 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.
Grocery stores (1 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Counts are within about 1 mile 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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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.