St. Ann Highlands, Colorado Demographics & Population 2026

A note before these figures: with a population of 453, St. Ann Highlands'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

St. Ann Highlands is a small community located in Colorado, within Boulder County. The total population is 453. It ranks as the 297th most populous out of 472 Census-designated places in Colorado.

Age Demographics

The median age in St. Ann Highlands is 38.1 years. This is 1% higher than the state median of 37.7 years. With 28.0% of the population under 18, St. Ann Highlands has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in St. Ann Highlands is $188,125. This is 97% higher than the state median of $95,470. It is also 133% higher than the national median of $80,734. The ACS records no residents below the poverty line in St. Ann Highlands. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in St. Ann Highlands, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $936,200. Housing costs are 74% higher than the state median of $539,400. The home-value-to-income ratio is 5.0x. 76.5% of occupied housing units are owner-occupied. This homeownership rate is 16% higher than the state average of 66.2%.

Race & Ethnicity

Every resident counted in St. Ann Highlands was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

80.4% of residents aged 25 and older hold a bachelor's degree or higher. This places St. Ann Highlands in the top 10% of all cities in the state for educational attainment. This is 76% 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 97.2%. Notably, 26.7% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for St. Ann Highlands, 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.