Jamestown is a town in Boulder County, Colorado, home to about 324 people across 0.6 square miles. Its ZIP code is 80455.
Homes sold for a median of $351 per square foot in the three months ending August 2026, a seller’s market.
Mostly Jamestown; also Glendale (Boulder County) and Gold Hill
Each card is that ZIP code’s whole market, including any part outside Jamestown. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Denver International Airport (DEN)42 miles away |
|---|---|
| Closer regional airport | Rocky Mountain Metropolitan Airport (BJC)20 miles away |
| Nearest city of 250,000+ | Denver, CO36 miles away |
| Nearest city of 1 million+ | Phoenix, AZ584 miles away |
Straight-line distances from the center of Jamestown; 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.
Jamestown had 256 residents in the 2020 census, up 25% since 2000.
It’s the 333rd largest of 472 towns in Colorado by population.
Boulder County grew from 21,544 residents in 1900 to 330,758 in 2020.
Boulder County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 68°F in summer, and winter lows average 12°F. About 34 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Boulder 14 W, CO weather station (10 miles away).
159,619 jobs at 12,990 businesses in Boulder 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 Jamestown.
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.
Museums
Theaters and performance venues
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.
Public schools here are run by Boulder Valley School District No. Re2. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Jamestown Elementary SchoolJamestown | K–5 | 17 | Public | 0.1 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 Glendale (Boulder County) and Gold Hill.
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.