There are 16 cities in Franklin County, Pennsylvania.

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Chambersburg1Pennsylvania22,21221,8800.09%3,2086.92
Washington2Pennsylvania13,37913,169-0.39%4,5382.95
Waynesboro3Pennsylvania10,98911,030-0.17%3,2213.41
Greencastle4Pennsylvania4,1964,244-0.33%2,6421.59
Guilford5Pennsylvania3,9553,571 2,5531.55
State Line6Pennsylvania3,3953,548 1,2402.74
Wayne Heights7Pennsylvania3,1472,605 1,4752.13
Fayetteville8Pennsylvania2,7452,855 8413.26
Mont Alto9Pennsylvania1,5621,582-0.38%2,7740.56
Mercersburg10Pennsylvania1,4811,504-0.47%1,6420.90
Scotland11Pennsylvania1,179734 1,4310.82
Pen Mar12Pennsylvania1,1771,185 1,5930.74
Fort Loudon13Pennsylvania1,0591,168 2494.26
Blue Ridge Summit14Pennsylvania1,039680 1,4000.74
Rouzerville15Pennsylvania669746 1,0250.65
Orrstown16Pennsylvania213214 3,3280.06
showing: 16 rows

Cities in Franklin County, Pennsylvania by Population (2024)

What is the largest city in Franklin County, Pennsylvania?

Chambersburg is the largest city in Franklin County.

What is the smallest city in Franklin County, Pennsylvania?

Orrstown is the smallest city in Franklin County.

How many cities are in Franklin County?

There are 16 cities in Franklin County, Pennsylvania.

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