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

Explore 82 historic maps of LaSalle 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 LaSalle 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 LaSalle County's history through authentic maps from the 1900s. This is your window into the past.

LaSalle County, IL maps

(82)
  1. 1911 Map of La Salle
    1911 Map of La Salle
    1911 La Salle
    1911 Print · USGS
    The Illinois River valley thrived as a hub of rail and river commerce in the early twentieth century. Researchers can trace the development of industrial centers like La Salle and Oglesby, or locate vanished post offices and rural landmarks like Standard Taft PO and St Bedes College.
  4. 1913 Map of La Salle
    1913 Map of La Salle
    1913 La Salle
    1913 Print · USGS
    The industrial heart of the Illinois River valley thrives in the early twentieth century, showing the intersection of heavy rail and river trade. Genealogists can trace family homes near St Bedes College or find old post offices like Standard Taft PO and rural stops at Hicks Corners.
    4 unique versions available
  7. 1915 Map of Ottawa
    1915 Map of Ottawa
    1915 Ottawa
    1915 Print · USGS
    LaSalle County in the early twentieth century centered on the industrial and transit hub of Ottawa at the river's edge. Researchers can trace the path of the Illinois and Michigan Canal or locate local landmarks like Twin Bluffs and Hickory College.
    7 unique versions available
  10. 1916 Map of Marseilles
    1916 Map of Marseilles
    1916 Marseilles
    1916 Print · USGS
    The Illinois River valley in the early twentieth century shows a busy network of canals, electric railways, and rural schools. Trace the early layout of Marseilles, the Michigan Canal, and dozens of local landmarks like Norway and the Fox River Academy.
    4 unique versions available
  13. 1925 Map of Streator, 1964 Print
    1925 Map of Streator, 1964 Print
    1925 Streator
    1964 Print · USGS
    The industrial and rail hub of LaSalle and Livingston counties is captured here in the mid-twenties, centered on the Streator river valley. Genealogists can trace rural family life through dozens of named landmarks like Patterson School, St Marys Church, and Moons Point Cemetery.
    2 unique versions available
  16. 1927 Map of Streator
    1927 Map of Streator
    1927 Streator
    1927 Print · USGS
    LaSalle and Livingston Counties appear here during the mid-twenties, when a massive web of railroads supported the bustling hub of Streator. Genealogists and local historians can locate dozens of country schools and churches, from Paddy Ridge School to St Marys Church.
    2 unique versions available
  19. 1934 Map of Wenona
    1934 Map of Wenona
    1934 Wenona
    1934 Print · USGS
    The crossroads of Marshall, Putnam, and La Salle counties are captured here in the mid-1930s, revealing a landscape defined by railroad junctions and rural school districts. Genealogists can locate family-named landmarks like Hullinger Sch and Beckwith Sch, or trace the tracks of the Illinois Central through Wenona.
    2 unique versions available
  22. 1939 Map of Wenona
    1939 Map of Wenona
    1939 Wenona
    1939 Print · USGS
    North-central Illinois agricultural and rail hubs are captured here in the late 1930s as steam-era infrastructure reached its peak. Researchers can locate dozens of country schools and trace the tracks of the Illinois Central through Wenona and Tonica.
    2 unique versions available
  25. 1940 Map of Marseilles, 1958 Print
    1940 Map of Marseilles, 1958 Print
    1940 Marseilles
    1958 Print · USGS
    LaSalle and Grundy counties appear here during the transition from the canal era to the railway age. Genealogists and local historians can trace family-named school sites like Ness School and Barry School or locate the village of Stavanger.
  28. 1946 Map of Ottawa, 1963 Print
    1946 Map of Ottawa, 1963 Print
    1946 Ottawa
    1963 Print · USGS
    Ottawa and the Illinois River valley are shown here just after the war, featuring a landscape of industrial riverfronts and deep sandstone canyons. Researchers can locate dozens of country schools like Hickory College or trace the Illinois and Michigan Canal and Starved Rock State Park.
    2 unique versions available
  31. 1947 Map of La Salle, 1958 Print
    1947 Map of La Salle, 1958 Print
    1947 La Salle
    1958 Print · USGS
    La Salle and the Illinois River valley are shown here in the years following the war, as the rail-to-river economy remained in full swing. Local historians can trace the transition from rail to road while locating St Bedes College, Matthiessen Park, and Spring Valley.
    2 unique versions available
  34. 1948 Map of Sandwich, 1965 Print
    1948 Map of Sandwich, 1965 Print
    1948 Sandwich
    1965 Print · USGS
    The Fox River valley in the late 1940s is a landscape of established rail towns and deep rural roots. Researchers can trace the Indian Boundary Line or locate family landmarks like French Ch, Oak Mound Cem, and the Sleezer Sch.
  37. 1950 Map of Sandwich
    1950 Map of Sandwich
    1950 Sandwich
    1950 Print · USGS
    Northern Illinois prairie and river valleys come alive in the mid-century, following the rail lines of the Chicago Burlington and Quincy. Trace family roots at the Sandwich Fair Grounds or local landmarks like Maramech Hill and State Boys Training School.
    2 unique versions available
  40. 1951 Map of Earlville, 1952 Print
    1951 Map of Earlville, 1952 Print
    1951 Earlville
    1952 Print · USGS
    The rural crossroads of north-central Illinois come to life in this early fifties survey of the area surrounding Earlville and Leland. Genealogists can trace family ties at the Baker Cem or St Clara Cem and locate vanished schoolhouses like Austin Sch.
    2 unique versions available
  43. 1952 Map of Mendota, 1954 Print
    1952 Map of Mendota, 1954 Print
    1952 Mendota
    1954 Print · USGS
    Mendota was a bustling railroad crossroads in the 1950s at the junction of three major lines. Genealogists can trace family roots through numerous country burial grounds and schoolhouses like Holy Cross Cem, Restland Cem, and Schlesinger Sch.
    3 unique versions available
  46. 1955 Map of Minonk, 1956 Print
    1955 Map of Minonk, 1956 Print
    1955 Minonk
    1956 Print · USGS
    Woodford and Marshall counties at mid-century reveal a thriving rail-and-coal economy across the Illinois prairie. Family researchers and historians can trace lineage at Mennonite Ch, find old Mine Dumps, or locate vanished landmarks like Spring Hill Sch.
  49. 1958 Map of Flanagan, 1959 Print
    1958 Map of Flanagan, 1959 Print
    1958 Flanagan
    1959 Print · USGS
    North-central Illinois townships during the late fifties show a landscape of thriving rail-side hamlets and rural parish life. Genealogists can locate family landmarks like the Salem Childrens Home, Nigh Chapel, and the Morris Cem near the Vermilion River.
    2 unique versions available
  52. 1958 Map of Odell, 1959 Print
    1958 Map of Odell, 1959 Print
    1958 Odell
    1959 Print · USGS
    Prairie townships in Livingston and LaSalle counties show their mid-century transition as rural schools consolidate. Trace family roots at St Patricks Cem, the village of Ransom, or the defunct McGreevy Sch (Abandoned).
  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 Peoria, 1969 Print
    1958 Map of Peoria, 1969 Print
    1958 Peoria
    1969 Print · USGS
    Central Illinois thrived as a hub of education and transport during the late sixties, as the new interstate system began to reshape the prairie. Genealogists and historians can trace local landmarks like Springdale Cem, Bradley University, and the sprawling grounds of Chanute AFB.
    4 unique versions available
  61. 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.
  64. 1961 Map of Peoria
    1961 Map of Peoria
    1961 Peoria
    1961 Print · USGS
    Central Illinois thrived at the intersection of river trade and rail power during the late fifties. Genealogists and local historians can trace the rail networks of the Illinois Central and Wabash, alongside landmarks like Chanute AFB and Weldon Springs State Park.
  67. 1963 Map of Peoria
    1963 Map of Peoria
    1963 Peoria
    1963 Print · USGS
    Central Illinois thrived as a rail and highway crossroads during the early sixties, centered on the bustling Illinois River valley. Genealogists and historians can trace the mid-century layout of Peoria, locate the grounds of Chanute Air Force Base, and follow historic lines like the Toledo Peoria and Western Railway.
  70. 1966 Map of Ladd, 1968 Print
    1966 Map of Ladd, 1968 Print
    1966 Ladd
    1968 Print · USGS
    In the mid-1960s, these Illinois prairie townships remained deeply marked by their coal mining and railroading roots. Researchers can trace the industrial footprint at Ladd, locate family plots at Miners Memorial Cem, or follow the path of the historic Plank Road.
    2 unique versions available
  73. 1966 Map of Troy Grove, 1968 Print
    1966 Map of Troy Grove, 1968 Print
    1966 Troy Grove
    1968 Print · USGS
    LaSalle County's agricultural heartland is documented here in the mid-1960s, centered on the river valley and rail corridors. Researchers can locate family landmarks like Crain Cem, the Dimmick Sch, and the industrial Sandpits around Troy Grove.
    2 unique versions available
Showing maps 1-25 of 82

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