The demographic data provided on this web site shows the most recent demographic information available for Jefferson County, breaking out the unincorporated area where data is available. In some cases, local, regional, Colorado, and U.S. demographic data was provided for comparison purposes. The demographic data sources used for this project are noted at the bottom of each page.
The Community Plan Area map, and the Cities and Unincorporated Area map, showing boundaries, square miles and acres, were prepared by staff using the most recent geographic and demographic data available.
2012 Jefferson County Demographic Update
The 2012 Jefferson County Demographic Update is a comprehensive look at the County’s demographic profile as of January 1, 2012. The data used for this update was primarily derived from 2010 US Census data. The 2010 US Census data is considered the baseline demographic data for population and housing estimates until the next decennial census occurs in 2020. More...
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Land Area Maps
Cities and Unincorporated Area
Community Plan Area
Mountain Area Census Tract and Density
At a Glance
Community Profile for 2012
At a Glance Demographic Profile 2000 to 2010 Comparison
Population – County Land Area Comparison
Historic US Census Population Estimate 1870 to 2010
1960 – 2040 Total Population Estimate Summary
County Population from 2000 to 2010 including Cities, State, U.S. and World
Population Comparison with other Metro Counties 2000 to 2040
Population in age groups from 2000 to 2040
Jefferson County Total Population Male & Female 2000 to 2040
Median Age by County
Race & Ethnicity
Housing Structure Type
Jefferson County Public Schools Facts & Figures
Higher Education Institutions
Home Price Comparison
Monthly Housing Costs
Employment: Denver Metro Counties
Employment by Industry
Top Employers in Jefferson County
Occupational Employment Distribution for Colorado
Income and Benefits
About the 2012 Jefferson County Demographic Update
For the 2012 Jefferson County Demographic Update, the sources used to construct the various tables, charts, estimates and forecasts included: the Colorado State Demography Office, the US Census, American Community Survey (ACS), Colorado Department of Labor and Employment, Denver Regional Council of Governments (DRCOG), Jeffco Public Schools, and the Jefferson Economic Council (JEC).
Please note: This site will be periodically revised and updated to reflect the most recent demographic information available.