Summit County, Colorado
Historic newspapers, landmarks, and county history layers for genealogists and local historians.
At a glance
SummaryThe National Register of Historic Places includes 9 listed properties in the county, first listed in 1980. Most listings are in or near Breckenridge, Frisco, Breckinridge.
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 Summit titles at the Library of Congress.
National Register of Historic Places
NPS NRHP4 of 9 listings mapped; some locations are restricted by NPS to protect sensitive sites.
9 listed properties
| Property | City | Listed |
|---|---|---|
| Breckenridge Historic District | Breckenridge | 1980 |
| Frisco Schoolhouse | Frisco | 1983 |
| Masonic Placer Cemetery-Valley Brook Cemetery | Breckinridge | 2014 |
| Montezuma Schoolhouse | Montezuma | 2007 |
| Porcupine Peak Site | Dillon | 1980 |
| Slate Creek Bridge | Slate Creek | 1985 |
| Soda Creek Ranch | Keystone | 2010 |
| The Bunk House Lodge | Breckenridge | 2025 |
| Wildhack's Grocery Store-Post Office | Frisco | 1985 |
Source: National Park Service, National Register of Historic Places. Property links open NRHP nomination files at the National Archives.
County formation
Newberry AHCBSummit was formed in 1861 (1861-11-01) from unknown / original county.
SUMMIT created by Colorado Territory from non-county area. SUMMIT's eastern boundary (described as "the summit of the snowy range") was open to different interpretations. In 1886, the Colorado Sup. Ct. ruled the boundary ran on Continental Divide.
Source: Newberry Library, Atlas of Historical County Boundaries.
Population by decade
CensusSummit County population from 1870 to 2020 (Census historical series).
| 1870 | 1880 | 1900 | 1920 | 1940 | 1950 | 1960 | 1980 | 2000 | 2020 |
|---|---|---|---|---|---|---|---|---|---|
| 258 | 5,459 | 2,744 | 1,724 | 1,754 | 1,135 | 2,073 | 8,848 | 23,548 | 31,055 |
Sources: U.S. Census Bureau historical county population (Forstall 1790–1990) and public-domain / CC0 county population series through 2020.
Cemeteries & historical places
USGS GNIS8 cemeteries and 7 historical populated places (ghost towns / former settlements) recorded in USGS GNIS for this county.
Cemeteries — 8 of 8 listed
| Name |
|---|
| Breckenridge Masonic Cemetery |
| Dillon Cemetery |
| Frisco Cemetery |
| Kansas Gulch Grandview Cemetery |
| Masonic Monument |
| Masonic Mounument |
| Montezuma Cemetery |
| Valley Brook Cemetery |
Historical populated places — 7 of 7
| Name |
|---|
| Dyersville |
| Kokomo |
| Parkville |
| Preston |
| Rexford |
| Saints John |
| Tiger |
Source: USGS Geographic Names Information System (public domain). Cemeteries from the 2021 NationalFile archive; historical places from GNIS HistoricalFeatures topical extract.
Historical markers
HMdb linkMarker text and photos from the Historical Marker Database (HMdb) are not embedded here. HMdb allows non-commercial reuse with attribution, but commercial/compensated use needs written permission; this is a commercial site, so we only link out.
Search HMdb for Summit County, Colorado
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