County demographics · Colorado

Jefferson County, Colorado demographics

Jefferson County, Colorado (county FIPS 08059) has a median household income of $110,656 (±$1,614) and a total population of 579,377 in the American Community Survey 5-year estimates for 2020-2024.

Margins of error are at the 90% confidence level. The figures describe 2020-2024 (dollars in 2024 dollars), not the present. 34 ZIP Code Tabulation Areas overlap the county (Census 2020).

Data as of Oct 22, 2026 (Olympus publication) · Markdown version

  • Values are ACS 5-year estimates for 2020-2024 (dollars in 2024 dollars), not current figures.
  • ZCTA-county overlaps come from the Census 2020 relationship file and use 2020 counties, by land area; Connecticut uses its legacy counties, not the planning regions in ACS 2022+.

ACS 5-year estimates, 2020-2024

Census American Community Survey 5-year estimates for 2020-2024, with 90% margins of error as published by the Census Bureau.

MetricEstimateMargin of error (90%)ACS table
Total population579,377none (controlled estimate)B01003
Median age40.5 years±0.2 yearsB01002
Households241,735±959B11001
Median household income (inflation-adjusted to the final ACS year)$110,656±$1,614B19013
Median value of owner-occupied housing units$637,600±$3,257B25077
Median gross rent$1,861±$19B25064
Owner-occupied share of occupied housing units70.7%none (derived from several estimates)B25003 (derived)
Renter-occupied share of occupied housing units29.3%none (derived from several estimates)B25003 (derived)
High school graduate or higher (age 25+)95.8%none (derived from several estimates)B15003 (derived)
Bachelor's degree or higher (age 25+)52%none (derived from several estimates)B15003 (derived)
Share of people below the poverty level6.7%none (derived from several estimates)B17001 (derived)
Unemployment rate (civilian labor force)3.9%none (derived from several estimates)B23025 (derived)
  • Dollar values are in 2024 inflation-adjusted dollars.
  • Percentages' margins of error are in percentage points (pp).

Geography

MeasureValue
County FIPS08059
Land area764.39 sq mi
Water area9.67 sq mi
Population density758 per sq mi of land
Geography vintage2024 Gazetteer

ZIP codes (ZCTAs) in this county

ZCTAs that overlap the county in the Census 2020 ZCTA to county relationship file, largest share of the county's land first.

ZCTAShare of county landShare of ZCTA landCounty is the ZCTA's primary county
8040315.2%82.1%Yes
8047010.9%81.3%Yes
804399.2%41.7%
804338.7%100%Yes
801278.7%100%Yes
801358.5%17.5%
804257%100%Yes
804016.4%100%Yes
804655.7%100%Yes
800073.3%100%Yes
800051.5%100%Yes
802281.5%100%Yes
801281.5%90.1%Yes
800211.4%66.5%Yes
802271.2%85.6%Yes
800331.1%100%Yes
802261.1%99.4%Yes
800040.9%100%Yes
800020.8%95.6%Yes
801230.8%49.6%Yes
800030.7%86%Yes
802150.7%100%Yes
804540.7%100%Yes
802140.6%99%Yes
802320.5%99.1%Yes
800200.3%13%
802350.3%74.9%Yes
804210.3%2.1%
800310.1%10.1%
802120.1%18.6%
804570.1%100%Yes
804530.1%100%Yes
804190%100%Yes
801250%0.3%

Sources

Get this data from the API

The same figures, with provenance on every value, from the API (free API key, reference) or from an AI agent through the Olympus MCP server.

curl
curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/08059" -H "X-API-Key: $OLYMPUS_API_KEY"
MCP tool call
get_us_demographics {"county_fips":"08059"}

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