There are 10 cities in Union County, Pennsylvania.

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Lewisburg1Pennsylvania5,3275,150-0.04%5,4750.97
Mifflinburg2Pennsylvania3,4663,4730.06%1,9211.80
Linntown3Pennsylvania1,6871,799 2,3790.71
New Columbia4Pennsylvania8551,164 4411.94
New Berlin5Pennsylvania781802-0.76%2,0130.39
West Milton6Pennsylvania6571,152 7920.83
Laurelton7Pennsylvania366336 6420.57
Allenwood8Pennsylvania314195 5340.59
Hartleton9Pennsylvania249250-0.4%2740.91
Vicksburg10Pennsylvania161283 3340.48
showing: 10 rows

Cities in Union County, Pennsylvania by Population (2024)

What is the largest city in Union County, Pennsylvania?

Lewisburg is the largest city in Union County.

What is the smallest city in Union County, Pennsylvania?

Vicksburg is the smallest city in Union County.

How many cities are in Union County?

There are 10 cities in Union County, Pennsylvania.

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