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Old Maps of Union County, New Jersey for Metal Detecting

Plan your next treasure hunt with 38 historic maps of Union County. Find old homesites, ghost towns, trails, and gathering spots that may be lost to time — perfect for identifying promising metal detecting locations.

  • Locate forgotten sites: Uncover places like long-lost settlements, abandoned rail lines, or gathering spots.
  • Plan better hunts: Use map overlays combined with LiDAR or satellite views to narrow in on historically rich areas.
  • Made for detectorists: Thousands of hobbyists use these maps to discover relics, coins, and hidden history.

Use these historic maps to boost your research and find new opportunities beneath the surface of Union County.

Union County, NJ maps

(38)
  1. 1888 Map of Plainfield
    1888 Map of Plainfield
    1888 Plainfield
    1888 Print · USGS
    Covers Union County, including New York, Newark, and other nearby areas
  4. 1893 Map of Plainfield
    1893 Map of Plainfield
    1893 Plainfield
    1893 Print · USGS
    Covers Union County, including New York, Newark, and other nearby areas
    2 unique versions available
  7. 1898 Map of Plainfield
    1898 Map of Plainfield
    1898 Plainfield
    1898 Print · USGS
    Covers Union County, including New York, Newark, and other nearby areas
    2 unique versions available
  10. 1898 Map of Staten Island
    1898 Map of Staten Island
    1898 Staten Island
    1898 Print · USGS
    Covers Union County, including New York, Newark, and other nearby areas
  13. 1900 Map of Passaic
    1900 Map of Passaic
    1900 Passaic
    1900 Print · USGS
    Covers Union County, including New York, Newark, and other nearby areas
  16. 1900 Map of Staten Island
    1900 Map of Staten Island
    1900 Staten Island
    1900 Print · USGS
    Covers Union County, including New York, Newark, and other nearby areas
    10 unique versions available
  19. 1905 Map of Plainfield
    1905 Map of Plainfield
    1905 Plainfield
    1905 Print · USGS
    Covers Union County, including New York, Newark, and other nearby areas
    6 unique versions available
  22. 1905 Map of Passaic
    1905 Map of Passaic
    1905 Passaic
    1905 Print · USGS
    Covers Union County, including New York, Newark, and other nearby areas
    4 unique versions available
  25. 1921 Map of Plainfield
    1921 Map of Plainfield
    1921 Plainfield
    1921 Print · USGS
    Covers Union County, including New York, Newark, and other nearby areas
  28. 1942 Map of Passaic
    1942 Map of Passaic
    1942 Passaic
    1942 Print · USGS
    Covers Union County, including New York, Newark, and other nearby areas
  31. 1943 Map of Roselle, 1947 Print
    1943 Map of Roselle, 1947 Print
    1943 Roselle
    1947 Print · USGS
    Covers Union County, including Newark, Elizabeth, and other nearby areas
  34. 1944 Map of Newark, 1971 Print
    1944 Map of Newark, 1971 Print
    1944 Newark
    1971 Print · USGS
    Covers Union County, including New York, Philadelphia, and other nearby areas
    5 unique versions available
  37. 1947 Map of Elizabeth
    1947 Map of Elizabeth
    1947 Elizabeth
    1947 Print · USGS
    Covers Union County, including New York, Newark, and other nearby areas
    2 unique versions available
  40. 1947 Map of Chatham
    1947 Map of Chatham
    1947 Chatham
    1947 Print · USGS
    Covers Union County, including Plainfield, Westfield, and other nearby areas
    2 unique versions available
  43. 1947 Map of Perth Amboy
    1947 Map of Perth Amboy
    1947 Perth Amboy
    1947 Print · USGS
    Covers Union County, including New York, Edison, and other nearby areas
  46. 1947 Map of Roselle
    1947 Map of Roselle
    1947 Roselle
    1947 Print · USGS
    Covers Union County, including Newark, Elizabeth, and other nearby areas
    2 unique versions available
  49. 1947 Map of Arthur Kill
    1947 Map of Arthur Kill
    1947 Arthur Kill
    1947 Print · USGS
    Covers Union County, including New York, Woodbridge Township, and other nearby areas
  52. 1947 Map of Plainfield
    1947 Map of Plainfield
    1947 Plainfield
    1947 Print · USGS
    Covers Union County, including Edison, Franklin Township, and other nearby areas
    2 unique versions available
  55. 1949 Map of Newark
    1949 Map of Newark
    1949 Newark
    1949 Print · USGS
    Covers Union County, including New York, Philadelphia, and other nearby areas
    2 unique versions available
  58. 1955 Map of Plainfield, 1957 Print
    1955 Map of Plainfield, 1957 Print
    1955 Plainfield
    1957 Print · USGS
    Covers Union County, including Edison, Franklin Township, and other nearby areas
    5 unique versions available
  61. 1955 Map of Arthur Kill, 1957 Print
    1955 Map of Arthur Kill, 1957 Print
    1955 Arthur Kill
    1957 Print · USGS
    Covers Union County, including New York, Woodbridge Township, and other nearby areas
    2 unique versions available
  64. 1955 Map of Chatham, 1957 Print
    1955 Map of Chatham, 1957 Print
    1955 Chatham
    1957 Print · USGS
    Covers Union County, including Plainfield, Westfield, and other nearby areas
    7 unique versions available
  67. 1955 Map of Elizabeth, 1958 Print
    1955 Map of Elizabeth, 1958 Print
    1955 Elizabeth
    1958 Print · USGS
    Covers Union County, including New York, Newark, and other nearby areas
    2 unique versions available
  70. 1955 Map of Roselle, 1958 Print
    1955 Map of Roselle, 1958 Print
    1955 Roselle
    1958 Print · USGS
    Covers Union County, including Newark, Elizabeth, and other nearby areas
    4 unique versions available
  73. 1956 Map of Newark
    1956 Map of Newark
    1956 Newark
    1956 Print · USGS
    Covers Union County, including New York, Philadelphia, and other nearby areas
    2 unique versions available
Showing maps 1-25 of 38

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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?