Northumberland County, Pennsylvania
Northumberland County is a county in Pennsylvania with an estimated population of 90,120 in 2023. 13 cities, towns and Census places in it are indexed here.
Largest places in Northumberland County
Sunbury 9,539Shamokin 6,803Milton 6,497Mount Carmel 5,635Northumberland 3,839Kulpmont 2,703Watsontown 2,214Riverside 2,013Turbotville 664Marion Heights 551Herndon 344Snydertown 322McEwensville 289
About Northumberland County
Northumberland County is one of the counties of Pennsylvania. County governments in Pennsylvania handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.