Adams County, Colorado
Historic newspapers, landmarks, and county history layers for genealogists and local historians.
At a glance
SummaryThe National Register of Historic Places includes 20 listed properties in the county, first listed in 1979. Most listings are in or near Westminster, Brighton, Northglenn.
Summary generated automatically from the source data on this page.
Newspapers
Library of CongressNewspaper directory data for Colorado is not yet loaded on this site. Browse Adams titles at the Library of Congress.
National Register of Historic Places
NPS NRHP11 of 20 listings mapped; some locations are restricted by NPS to protect sensitive sites.
20 listed properties
| Property | City | Listed |
|---|---|---|
| Adams County Courthouse | Brighton | 2006 |
| Bowles House | Westminster | 1988 |
| Brannan Sand and Gravel Pit #8-Lake Sangraco Boathouse Complex | Denver | 2011 |
| Brighton High School | Brighton | 1998 |
| Bromley Farm-Koizuma Hishinuma Farm | Brighton | 2007 |
| Colorado Sanitary Canning Factory | Brighton | 2016 |
| Deza Estates | Northglenn | 2023 |
| Eastlake Farmers Co-Operative Elevator Company | Thornton | 2010 |
| Engelbrecht Farm | Strasburg | 2014 |
| Fuller, Granville, House | Aurora | 2012 |
| Gregory, William J., House | Westminster | 1996 |
| Harris Park School | Westminster | 1990 |
| Metzger Farm | Westminster | 2013 |
| Riverside Cemetery | Denver | 1994 |
| Robidoux, M.J. Lavina, House | Aurora | 2011 |
| St. Stephen's Lutheran Church | Northglenn | 2019 |
| Thede Farmhouse | Northglenn | 1998 |
| Union High School | Westminster | 2000 |
| Westminster University | Westminster | 1979 |
| Wilson, Blanche A., House | Aurora | 1996 |
Source: National Park Service, National Register of Historic Places. Property links open NRHP nomination files at the National Archives.
County formation
Newberry AHCBAdams was formed in 1902 (1902-11-15) from Arapahoe.
ADAMS created from ARAPAHOE. Act passed 15 Apr 1901; took effect 15 Nov 1902 following adoption of article XX of the Colorado Constitution in the Nov 1902 election.
Source: Newberry Library, Atlas of Historical County Boundaries.
Population by decade
CensusAdams County population from 1910 to 2020 (Census historical series).
| 1910 | 1920 | 1940 | 1950 | 1960 | 1980 | 2000 | 2020 |
|---|---|---|---|---|---|---|---|
| 8,892 | 14,430 | 22,481 | 40,234 | 120,296 | 245,944 | 363,857 | 519,572 |
Sources: U.S. Census Bureau historical county population (Forstall 1790–1990) and public-domain / CC0 county population series through 2020.
Cemeteries & historical places
USGS GNIS11 cemeteries and 0 historical populated places (ghost towns / former settlements) recorded in USGS GNIS for this county.
Cemeteries — 11 of 11 listed
| Name |
|---|
| Black Cemetery |
| Elmwood Cemetery |
| Fairview Cemetery |
| Highland Memorial Gardens |
| Mount View Cemetery |
| Olinger Eastlawn Cemetery |
| Riverside Cemetery |
| Rose Hill Cemetery |
| Saint Clair Ross Cemetery |
| Wesley Chapel Cemetery |
| Woolsey Cemetery |
Source: USGS Geographic Names Information System (public domain). Cemeteries from the 2021 NationalFile archive; historical places from GNIS HistoricalFeatures topical extract.
Historical markers
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Search HMdb for Adams County, Colorado
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