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1900s (20th Century) Maps of Onslow, Iowa

Explore 7 historic maps of Onslow from the 1900s (20th Century). These maps offer a rare glimpse into what life looked like during the 1900s — 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 Onslow's landscape evolved across the 1900s, 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 1900s, 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 Onslow's history through authentic maps from the 1900s. This is your window into the past.

Onslow, IA maps

(7)
  1. 1900 Map of Anamosa
    1900 Map of Anamosa
    1900 Anamosa
    1900 Print · USGS
    Eastern Iowa is shown here during the peak of its rail-driven development at the end of the century. Genealogists and historians can trace the early layouts of Anamosa and Monticello or locate smaller settlements like Sand Spring and Rockville.
    4 unique versions available
  4. 1959 Map of Dubuque, 1982 Print
    1959 Map of Dubuque, 1982 Print
    1959 Dubuque
    1982 Print · USGS
    The Tri-State region comes alive in the mid-twentieth century as a hub of river commerce and rail transit. Genealogists and historians can trace the paths of the Illinois Central Gulf through Dubuque or locate the Savanna Ordnance Depot and Lock and Dam No 11.
  7. 1961 Map of Dubuque
    1961 Map of Dubuque
    1961 Dubuque
    1961 Print · USGS
    The Tri-State region's river-and-rail landscape is captured here during the early sixties, showing the convergence of Iowa, Illinois, and Wisconsin. Trace mid-century rail lines like the Chicago Great Western Ry and explore sites like the Savanna Ordnance Depot and Backbone State Park.
  10. 1962 Map of Dubuque
    1962 Map of Dubuque
    1962 Dubuque
    1962 Print · USGS
    The Tri-State region's river-and-rail economy is captured here in the early sixties, centered on the Mississippi River bluffs. Genealogists and historians can locate Numerous lead and zinc mines, the New Melleray Abbey Monastery, and rural hubs like Saint Olaf.
    2 unique versions available
  13. 1976 Map of Dubuque
    1976 Map of Dubuque
    1976 Dubuque
    1976 Print · USGS
    The tri-state borderlands of Iowa, Wisconsin, and Illinois come alive during the mid-seventies, showing a region built on river commerce and mining. Genealogists and historians can trace the paths of the Illinois Central railroad or locate heritage sites like the New Melleray Abbey Monastery and Backbone State Park.
  16. 1980 Map of Wyoming West, 1981 Print
    1980 Map of Wyoming West, 1981 Print
    1980 Wyoming West
    1981 Print · USGS
    Jones County's agricultural heartland is captured here in the 1980s, centered on the historic town of Wyoming and the southern Wapsipinicon River valley. Genealogists and local historians can trace family locations at North Madison Cem or follow the route of the Chicago Milwaukee St Paul and Pacific rail line.
  19. 1984 Map of Anamosa, 1985 Print
    1984 Map of Anamosa, 1985 Print
    1984 Anamosa
    1985 Print · USGS
    Eastern Iowa's river valleys and farming communities are captured here in the mid-eighties, showing a landscape defined by the Wapsipinicon River and Maquoketa River. Genealogists and historians can locate legacy landmarks like the Independence State Hospital, Ebys Mill, and the State Penal Farm.
    2 unique versions available
End of results
Showing maps 1-7 of 7

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Frequently asked questions

  • What are the different types of historical maps available for Onslow?
  • What is the oldest map of Onslow?
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  • Are there historical topographic maps available for Onslow?
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  • Where are historical maps of Onslow sourced from?