1900s (20th Century) Maps of Union County, Pennsylvania
Explore 46 historic maps of Union 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 Union 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 Union County's history through authentic maps from the 1900s. This is your window into the past.
Union County, PA maps
(46)- 1921 Map of Williamsport
1921 Williamsport1921 Print · USGSCovers Union County, including Williamsport, White Deer Township, and other nearby areas - 1923 Map of Williamsport
1923 Williamsport1923 Print · USGSCovers Union County, including Williamsport, White Deer Township, and other nearby areas6 unique versions available - 1924 Map of Milton
1924 Milton1924 Print · USGSCovers Union County, including Williamsport, South Williamsport, and other nearby areas4 unique versions available - 1937 Map of Millheim
1937 Millheim1937 Print · USGSCovers Union County, including Decatur Township, Millheim, and other nearby areas - 1938 Map of Mifflinburg
1938 Mifflinburg1938 Print · USGSCovers Union County, including Mifflinburg, Middleburg, and other nearby areas - 1941 Map of Millheim
1941 Millheim1941 Print · USGSCovers Union County, including Decatur Township, Millheim, and other nearby areas3 unique versions available - 1943 Map of Sunbury
1943 Sunbury1943 Print · USGSCovers Union County, including Sunbury, Lewisburg, and other nearby areas - 1943 Map of Mifflinburg
1943 Mifflinburg1943 Print · USGSCovers Union County, including Mifflinburg, Middleburg, and other nearby areas - 1944 Map of Williamsport
1944 Williamsport1944 Print · USGSCovers Union County, including Williamsport, White Deer Township, and other nearby areas - 1950 Map of Harrisburg, 1952 Print
1950 Harrisburg1952 Print · USGSCovers Union County, including Lancaster, Harrisburg, and other nearby areas - 1953 Map of Mifflinburg, 1955 Print
1953 Mifflinburg1955 Print · USGSCovers Union County, including Mifflinburg, Middleburg, and other nearby areas2 unique versions available - 1953 Map of Sunbury, 1956 Print
1953 Sunbury1956 Print · USGSCovers Union County, including Sunbury, Lewisburg, and other nearby areas3 unique versions available - 1953 Map of Williamsport, 1956 Print
1953 Williamsport1956 Print · USGSCovers Union County, including Williamsport, White Deer Township, and other nearby areas3 unique versions available - 1953 Map of Milton, 1956 Print
1953 Milton1956 Print · USGSCovers Union County, including Williamsport, South Williamsport, and other nearby areas2 unique versions available - 1954 Map of Williamsport
1954 Williamsport1954 Print · USGSCovers Union County, including Vestal, Williamsport, and other nearby areas - 1957 Map of Harrisburg
1957 Harrisburg1957 Print · USGSCovers Union County, including Lancaster, Harrisburg, and other nearby areas7 unique versions available - 1957 Map of Millheim, 1959 Print
1957 Millheim1959 Print · USGSCovers Union County, including Decatur Township, Millheim, and other nearby areas3 unique versions available - 1960 Map of Williamsport
1960 Williamsport1960 Print · USGSCovers Union County, including Vestal, Williamsport, and other nearby areas - 1961 Map of Harrisburg
1961 Harrisburg1961 Print · USGSCovers Union County, including Lancaster, Harrisburg, and other nearby areas2 unique versions available - 1962 Map of Williamsport, 1966 Print
1962 Williamsport1966 Print · USGSCovers Union County, including Vestal, Williamsport, and other nearby areas5 unique versions available - 1964 Map of Harrisburg
1964 Harrisburg1964 Print · USGSCovers Union County, including Lancaster, Harrisburg, and other nearby areas - 1965 Map of Williamsport
1965 Williamsport1965 Print · USGSCovers Union County, including Vestal, Williamsport, and other nearby areas - 1965 Map of Mifflinburg, 1966 Print
1965 Mifflinburg1966 Print · USGSCovers Union County, including Mifflinburg, Buffalo Township, and other nearby areas2 unique versions available - 1965 Map of Beavertown, 1966 Print
1965 Beavertown1966 Print · USGSCovers Union County, including Beavertown, Lewis Township, and other nearby areas3 unique versions available - 1965 Map of Milton, 1966 Print
1965 Milton1966 Print · USGSCovers Union County, including White Deer Township, Turbotville, and other nearby areas4 unique versions available
Showing maps 1-25 of 46
Top cities of Union County
- Lewisburg historical maps
- White Deer Township historical maps
- Mifflinburg historical maps
- Hartleton historical maps
Frequently asked questions
- What are the different types of historical maps available for Union County?
- What is the oldest map of Union County?
- Where can I purchase historical maps of Union County for my home or office?
- Where can I download high-res historical maps of Union County?
- Are there historical topographic maps available for Union County?
- Is there historical aerial imagery available for Union County?
- Where are historical maps of Union County sourced from?