Jamestown, Colorado Demographics & Population 2026

A note before these figures: with a population of 324, Jamestown's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Jamestown is a small community located in Colorado, within Boulder County. The total population is 324. It ranks as the 334th most populous out of 472 Census-designated places in Colorado.

Age Demographics

The median age in Jamestown is 45.8 years. This is 21% higher than the state median of 37.7 years.

Economy, Income & Housing

The median household income in Jamestown is $149,375. This is 56% higher than the state median of $95,470. It is also 85% higher than the national median of $80,734. The poverty rate stands at 2.5%. This is 74% lower than the state poverty rate of 9.4%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The survey records no unemployed residents in Jamestown, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $595,900. Housing costs are 10% higher than the state median of $539,400. The home-value-to-income ratio is 4.0x. 86.2% of occupied housing units are owner-occupied. This homeownership rate is 30% higher than the state average of 66.2%.

Race & Ethnicity

Jamestown has a predominantly White (non-Hispanic) population, comprising 94.8% of all residents. Hispanic or Latino residents account for 4.0%. The Hispanic or Latino population (4.0%) is well below the state average of 22.5%. The Asian population (0.6%) is well below the state average of 3.2%.

Education

57.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 26% higher than the state rate of 45.7%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.1%. Notably, 20.4% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Jamestown, Colorado is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Colorado state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 472 Census-designated places in Colorado. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.