Harford County has three municipalities: Aberdeen, Bel Air, and Havre de Grace. Of these, Havre de Grace is the oldest, having incorporated in 1785; followed by Bel Air, the county seat (1874); and Aberdeen (1892).
Town Hall, 39 Hickory Ave., Bel Air, Maryland, March 2005. Photo by Diane F. Evartt.
- Map of Urban Areas in Harford County, 2010
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