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1900s (20th Century) Maps of Carroll County, Illinois

Explore 46 historic maps of Carroll County 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 Carroll County'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 Carroll County's history through authentic maps from the 1900s. This is your window into the past.

Carroll County, IL maps

(46)
  1. 1930 Map of Woodsung
    1930 Map of Woodsung
    1930 Woodsung
    1930 Print · USGS
    Northern Illinois at the dawn of the 1930s shows a landscape of tight-knit farming townships linked by the Lincoln Highway. Genealogists and local historians can trace schoolhouse locations like Stone Sch and Gap Grove Sch, or locate family sites near the Prairieville Cem.
  4. 1934 Map of Morrison
    1934 Map of Morrison
    1934 Morrison
    1934 Print · USGS
    Whiteside County is seen here in the 1930s as a thriving agricultural landscape defined by the Chicago and Northwestern rail line. Researchers can trace rural school districts and family cemeteries such as Union Grove Cemetery, Coleta, and Milledgeville.
    2 unique versions available
  7. 1935 Map of Miles, 1957 Print
    1935 Map of Miles, 1957 Print
    1935 Miles
    1957 Print · USGS
    In the mid-1930s, the Mississippi River shoreline was defined by military expansion and the rail economy. Genealogists and historians can trace the foundations of the Savanna Ordnance Depot and local landmarks like Whitton and Lost Mound Sch.
  10. 1940 Map of Morrison
    1940 Map of Morrison
    1940 Morrison
    1940 Print · USGS
    Whiteside and Carroll counties thrive as a robust agricultural landscape during the late 1930s, defined by the twin engines of the Rock River and major rail lines. Genealogists can locate dozens of country schools like Ideal Sch and old cemeteries including Clyde Cem and Bethel Cem.
    2 unique versions available
  13. 1941 Map of Miles
    1941 Map of Miles
    1941 Miles
    1941 Print · USGS
    The Mississippi River borderlands come alive in this pre-war survey, documenting the small settlements and rail lines that defined the Jo Daviess and Carroll County line. Researchers can trace the river's complex island system or find local landmarks like Whitton, Lost Mound, and the Lost Mound Sch.
    2 unique versions available
  16. 1942 Map of Mt Carroll, 1959 Print
    1942 Map of Mt Carroll, 1959 Print
    1942 Mt Carroll
    1959 Print · USGS
    Northwest Illinois farmland is mapped here just after the start of the war, showing a landscape tightly connected by rail and rural schools. Genealogists can locate family landmarks like Sabin Ch, the Spring Valley Cem, or rail stops at Ashdale Junc and Kittredge.
    2 unique versions available
  19. 1942 Map of Forreston, 1965 Print
    1942 Map of Forreston, 1965 Print
    1942 Forreston
    1965 Print · USGS
    Forreston and the surrounding Ogle County prairie are shown during a height of rail activity in the 1940s. Genealogists can trace family roots through numerous country schools like White Oak Sch and rural landmarks such as Prairie Dell Ch and Shelly Cem.
    2 unique versions available
  22. 1944 Map of Mt Carroll
    1944 Map of Mt Carroll
    1944 Mt Carroll
    1944 Print · USGS
    The Carroll County landscape during the mid-1940s was defined by a dense network of country schools and the vital crossroads of the Milwaukee Road. Genealogists and historians can trace old homesteads near St Wendelin Cem, Ashdale Junc, and Loran.
    2 unique versions available
  25. 1945 Map of Forreston
    1945 Map of Forreston
    1945 Forreston
    1945 Print · USGS
    In the mid-1940s, the rural landscapes of Ogle and Stephenson counties were defined by a sprawling network of one-room schoolhouses and busy rail lines. Genealogists and historians can trace family roots at West Grove Ch, Maryland, and schools like Wall Sch or Good Sch.
    2 unique versions available
  28. 1946 Map of Sterling, 1969 Print
    1946 Map of Sterling, 1969 Print
    1946 Sterling
    1969 Print · USGS
    The Rock River corridor in the mid-1940s is captured here, showing the industrial heart of the region alongside its deep agricultural roots. Researchers can find dozens of country schools and cemeteries, including Buffalo Grove Sch, Zion Cem, and Oak Knoll Mem Park Cem.
  31. 1948 Map of Sterling
    1948 Map of Sterling
    1948 Sterling
    1948 Print · USGS
    Mid-century Sterling and Rock Falls are captured here during a time of robust rail and river activity. Genealogists can trace family roots through dozens of rural landmarks, including the Prairieville settlement, West Science Ridge Ch, and Hitt Cem.
    2 unique versions available
  34. 1952 Map of Clinton, 1953 Print
    1952 Map of Clinton, 1953 Print
    1952 Clinton
    1953 Print · USGS
    The Illinois-Iowa border along the Mississippi River is captured here in the early fifties, showing a landscape defined by industrial rail lines and wildlife refuges. Trace family roots through specific rural landmarks like York Ch, Cottonwood Sch, and Calvary Cem.
    2 unique versions available
  37. 1952 Map of Savanna, 1954 Print
    1952 Map of Savanna, 1954 Print
    1952 Savanna
    1954 Print · USGS
    The Mississippi River bluffs and rail corridors define this Illinois riverfront during the early fifties. Genealogists and historians can trace numerous rural schoolhouses and family-named cemeteries like Massbach Cem, Palsgrove, and the sprawling Savanna Ordnance Depot.
    3 unique versions available
  40. 1953 Map of Blackhawk, 1956 Print
    1953 Map of Blackhawk, 1956 Print
    1953 Blackhawk
    1956 Print · USGS
    The river bluffs and backwaters of the Mississippi River come to life in this mid-century survey of the Illinois and Iowa borderlands. Researchers can trace the river's industrial and social pulse through sites like Arnolds Landing, St Mathews Ch, and the winding Chicago Milwaukee St Paul and Pacific rail lines.
    3 unique versions available
  43. 1953 Map of Green Island, 1956 Print
    1953 Map of Green Island, 1956 Print
    1953 Green Island
    1956 Print · USGS
    The Mississippi River backwaters and the Savanna Ordnance Depot define this mid-century borderland between Iowa and Illinois. Genealogists and researchers can trace rural life through the Lost Mound Cem, Grand View Sch, and the rail stop at Whitton.
    3 unique versions available
  46. 1954 Map of Rockford
    1954 Map of Rockford
    1954 Rockford
    1954 Print · USGS
    The Rock River valley and the Illinois-Wisconsin borderlands are captured here in the mid-1950s during a period of robust industrial and agricultural activity. Genealogists and historians can trace rail-era corridors like the Illinois Central RR and locate landmarks from Big Foot Prairie to Lake Geneva.
  49. 1955 Map of Rockford
    1955 Map of Rockford
    1955 Rockford
    1955 Print · USGS
    The Rock River valley and southern Wisconsin dairy country are shown here in the mid-fifties as the region's manufacturing centers grew. Genealogists and historians can trace the paths of the Chicago and North Western RR and Illinois Central RR through hubs like Rockford and Beloit.
  52. 1958 Map of Davenport, 1968 Print
    1958 Map of Davenport, 1968 Print
    1958 Davenport
    1968 Print · USGS
    Eastern Iowa and western Illinois thrive along the river during the late fifties, defined by the industrial Quad Cities and a robust rail network. Genealogists can trace family roots through settlements like Oasis and Stanwood or along the Cedar River.
    2 unique versions available
  55. 1958 Map of Aurora, 1969 Print
    1958 Map of Aurora, 1969 Print
    1958 Aurora
    1969 Print · USGS
    Northern Illinois in the late fifties shows a landscape of powerful river industry and expanding transport corridors. Genealogists and historians can trace the development of Aurora and Joliet or locate sites like the Elwood Ordnance Plant and Starved Rock.
    3 unique versions available
  58. 1958 Map of Rockford, 1974 Print
    1958 Map of Rockford, 1974 Print
    1958 Rockford
    1974 Print · USGS
    Northern Illinois and southern Wisconsin are shown here in the mid-twentieth century as rail-dependent industrial towns began to interface with growing lakefront communities. Genealogists can trace family roots through settlements like Saylesville and Tess Corners or locate historical landmarks like the Rockford Ordnance Depot.
    4 unique versions available
  61. 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.
  64. 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.
  67. 1961 Map of Aurora
    1961 Map of Aurora
    1961 Aurora
    1961 Print · USGS
    Northern Illinois at the height of the post-war era reveals a landscape of massive industrial works and thriving river towns. Genealogists and historians can trace the paths of the Lincoln Highway or locate long-standing landmarks like the Green River Ordnance Plant and Starved Rock State Park.
  70. 1961 Map of Davenport
    1961 Map of Davenport
    1961 Davenport
    1961 Print · USGS
    The Quad Cities and the eastern Iowa riverlands are captured here in the early sixties, showing the region's transition into a modern industrial and transit hub. Genealogists and historians can trace the paths of major railroads and find river landmarks like Rock Island Arsenal, Huron Island, and the Coralville Reservoir.
  73. 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
Showing maps 1-25 of 46

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Frequently asked questions

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