1800s (19th Century) Maps of Ada County, Idaho

Explore 11 historic maps of Ada County from the 1800s (19th Century). These maps offer a rare glimpse into what life looked like during the 1800s — showing old roads, neighborhoods, homes, and landmarks that have changed or disappeared over time.

Whether you're researching your family's past, planning a metal detecting trip, or studying how Ada County's landscape evolved across the 1800s, these high-resolution maps are a powerful tool for exploring the history of this region.

  • Focus on a specific era: All maps on this page are from the 1800s, giving you a focused view of this time period.
  • See what’s changed: Compare century-old streets, trails, and buildings to today's modern landscape using overlays and satellite layers.
  • Research with precision: Use these maps for genealogy, historical research, land use analysis, or educational projects.
  • View, download, or print: Maps are fully viewable online in high resolution, and can be downloaded or printed for your own records.

Start exploring Ada County's history through authentic maps from the 1800s. This is your window into the past.


Ada County, ID maps

(11)
  1. 1892 Map of Mountain Home
    1892 Map of Mountain Home
    1892 Mountain Home
    1892 Print · USGS
    Elmore County's high desert and foothills are captured in the late nineteenth century as the railroad begins to reshape the Idaho territory. Genealogists and historians can trace early transit routes through Mountain Home and Cleft or follow the Boise River near Smith Prairie.

  2. 1892 Map of Boise
    1892 Map of Boise
    1892 Boise
    1892 Print · USGS
    The Boise Valley and surrounding highlands are shown here in the early 1890s as irrigation and railroads transformed the Idaho territory. Researchers can trace the early city grid near Boise Barracks and the paths of the Idaho Central Railroad and the Settlers Canal.

  3. 1892 Map of Bisuka
    1892 Map of Bisuka
    1892 Bisuka
    1892 Print · USGS
    Southern Idaho in the early 1890s was a land defined by the new Oregon Short Line Railroad and the deep cut of the canyon country. Researchers can trace early railroad stops at Bisuka and Kuna or locate the vital Boise Meridian reference at Initial Point.

  4. 1892 Map of Silver City, 1962 Print
    1892 Map of Silver City, 1962 Print
    1892 Silver City
    1962 Print · USGS
    Owyhee County was a center of industrial silver mining in the 1890s, with high-mountain camps and river crossings defining the local economy. Researchers can trace the layout of mining hubs like Silver City and De Lamar or locate the Warm Springs Ferry along the Snake River.
    2 unique versions available

  5. 1893 Map of Mountain Home
    1893 Map of Mountain Home
    1893 Mountain Home
    1893 Print · USGS
    Elmore County during the frontier era of the late nineteenth century centers on the vital rail connection through the high desert. Genealogists and historians can trace the early layout of Mountain Home and Cleft along the Oregon Short Line Union Pacific Railroad.
    4 unique versions available

  6. 1894 Map of Bisuka
    1894 Map of Bisuka
    1894 Bisuka
    1894 Print · USGS
    Southern Idaho in the 1890s was a landscape defined by the arrival of the rails and the deep canyon of the Snake River. Genealogists and historians can trace the early path of the Oregon Short Line Railroad through Kuna and locate the vital Initial Point survey marker.
    6 unique versions available

  7. 1894 Map of Silver City
    1894 Map of Silver City
    1894 Silver City
    1894 Print · USGS
    The Owyhee mining district and Snake River valley were in their industrial prime during the 1890s. Genealogists and historians can trace high-country settlements like Silver City and De Lamar or locate river crossings such as Warm Springs Ferry.

  8. 1894 Map of Idaho Basin
    1894 Map of Idaho Basin
    1894 Idaho Basin
    1894 Print · USGS
    The Idaho Basin at the height of the mining era is revealed here through its network of camps and mountain trails. Genealogists and historians can trace early settlements like Pioneerville, Idaho City, and Placerville alongside landmarks like Halfway House.
    7 unique versions available

  9. 1897 Map of Boise
    1897 Map of Boise
    1897 Boise
    1897 Print · USGS
    Boise and the surrounding valley are captured here in the late nineteenth century as irrigation and rail networks began to reshape the high desert. Researchers can trace early water rights through the Settlers Canal or locate historic sites like the Boise Barracks and the Natatorium.
    4 unique versions available

  10. 1898 Map of Nampa
    1898 Map of Nampa
    1898 Nampa
    1898 Print · USGS
    The Treasure Valley's transformation is visible in the 1890s as railroads and massive irrigation projects began to reshape the high desert. Researchers can trace the development of early rail lines like the Boise Nampa & Owyhee R. R. and early canals such as the Riverside Canal and Newman Canal.
    4 unique versions available

  11. 1898 Map of Silver City
    1898 Map of Silver City
    1898 Silver City
    1898 Print · USGS
    The silver-mining heart of Owyhee County is captured here in the late nineteenth century during its industrial peak. Genealogists and historians can trace old mining camps like Silver City and De Lamar, or locate river crossings such as Warm Springs Ferry.
    3 unique versions available

End of results
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Frequently asked questions

  • What are the different types of historical maps available for Ada County?
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  • Where are historical maps of Ada County sourced from?