Boise County, Idaho
Historic newspapers, landmarks, and county history layers for genealogists and local historians.
At a glance
SummaryThe National Register of Historic Places includes 4 listed properties in the county, first listed in 1972. Most listings are in or near Boise, Idaho City, Placerville.
Summary generated automatically from the source data on this page.
Newspapers
Library of CongressNewspaper directory data for Idaho is not yet loaded on this site. Browse Boise titles at the Library of Congress.
National Register of Historic Places
NPS NRHP1 of 4 listings mapped; some locations are restricted by NPS to protect sensitive sites.
4 listed properties
| Property | City | Listed |
|---|---|---|
| Arrowrock Dam | Boise | 1972 |
| Idaho City | Idaho City | 1975 |
| Placerville Historic District | Placerville | 1984 |
| Upper Brownlee School | Sweet | 1998 |
Source: National Park Service, National Register of Historic Places. Property links open NRHP nomination files at the National Archives.
County formation
Newberry AHCBBoise was formed in 1863 (1863-01-12) from Idaho.
BOISE created by Washington Territory from IDAHO; included parts of present Idaho and Wyoming.
Source: Newberry Library, Atlas of Historical County Boundaries.
Population by decade
CensusBoise County population from 1870 to 2020 (Census historical series).
| 1870 | 1880 | 1900 | 1920 | 1940 | 1950 | 1960 | 1980 | 2000 | 2020 |
|---|---|---|---|---|---|---|---|---|---|
| 3,834 | 3,214 | 4,174 | 1,822 | 2,333 | 1,776 | 1,646 | 2,999 | 6,670 | 7,610 |
Sources: U.S. Census Bureau historical county population (Forstall 1790–1990) and public-domain / CC0 county population series through 2020.
Cemeteries & historical places
USGS GNIS6 cemeteries and 2 historical populated places (ghost towns / former settlements) recorded in USGS GNIS for this county.
Cemeteries — 6 of 6 listed
| Name |
|---|
| Garden Valley Pioneer Cemetery |
| Idaho City Pioneer Cemetery |
| Miner Grave |
| Old Pioneer Cemetery |
| Pioneer Cemetery |
| Placerville Cemetery |
Historical populated places — 2 of 2
| Name |
|---|
| Graham |
| Howell |
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 Boise County, Idaho
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