There are 24 cities in Northumberland County, Pennsylvania.

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Sunbury1Pennsylvania9,4319,706-0.82%4,6622.02
Shamokin2Pennsylvania6,7206,927-0.87%8,0580.83
Milton3Pennsylvania6,4216,612-0.83%1,8893.40
Mount Carmel4Pennsylvania5,5745,726-0.82%8,4840.66
Northumberland5Pennsylvania3,7943,908-0.86%2,5181.51
Kulpmont6Pennsylvania2,6662,756-0.97%2,7770.96
Elysburg7Pennsylvania2,4512,147 8412.92
Watsontown8Pennsylvania2,2072,236-0.41%3,1350.70
Riverside9Pennsylvania1,9952,040-0.7%4134.83
Fairview-Ferndale10Pennsylvania1,8372,047 2,0530.90
Trevorton11Pennsylvania1,6951,624 3974.27
Dewart12Pennsylvania1,2851,298 6312.04
Marshallton13Pennsylvania1,2281,151 1,4150.87
Montandon14Pennsylvania852892 9900.86
Kapp Heights15Pennsylvania765697 2,1860.35
Atlas16Pennsylvania664842 2,6560.25
Turbotville17Pennsylvania659677-0.75%1,4680.45
Marion Heights18Pennsylvania544559-0.91%2,7060.20
Dalmatia19Pennsylvania373404 5470.68
Herndon20Pennsylvania341351-0.87%3970.86
Ranshaw21Pennsylvania328176 2,6670.12
McEwensville22Pennsylvania286289-0.69%2,4440.12
Riverside23Pennsylvania267223 2,3020.12
Strong24Pennsylvania1930.04
showing: 24 rows

Cities in Northumberland County, Pennsylvania by Population (2024)

What is the largest city in Northumberland County, Pennsylvania?

Sunbury is the largest city in Northumberland County.

What is the smallest city in Northumberland County, Pennsylvania?

Strong is the smallest city in Northumberland County.

How many cities are in Northumberland County?

There are 24 cities in Northumberland County, Pennsylvania.

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