Williamsport, Pennsylvania

Williamsport population, 2020 to 2024

Williamsport lost 118 residents from July 2020 to July 2024, a change of -0.4%. In the latest year it moved by -43. Among 193 Pennsylvania places of 5,000 or more, that growth ranks 106th; the median place changed by +0.2%. The median place of 5,000+ in Pennsylvania has 8,364 people, so Williamsport is 3.3 times that size.

Williamsport covers 8.78 square miles of land and 0.70 of water, for 3,147 people per square mile of land. The median Pennsylvania place of 5,000+ has 3,911, so Williamsport is less dense than the typical town.

What county Williamsport is in

All of Williamsport's residents live in Lycoming County, which had 113,236 residents in 2024. Williamsport holds 24.4% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Williamsport

1 ZIP Code Tabulation Area (ZCTA) overlaps Williamsport by at least 10% of the ZCTA's or the city's land: 17701. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Williamsport is

The Census internal point of Williamsport is at 41.240000, -77.035600. Harrisburg, the capital, is 67.9 miles S in a straight line. The nearest larger place is State College, PA (41,228 people), 52.9 miles away. The nearest city of 100,000 or more is Allentown, PA, 92.8 miles away.

Daylight in Williamsport

At 41.24° N, Williamsport gets about 15 h 09 min of daylight around the June solstice and 9 h 12 min around the December solstice, a swing of 5 h 57 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Williamsport

The eight nearest incorporated places of 1,000+ in Pennsylvania, measured between internal points. The closest is Duboistown, 1.2 miles away, with 1,186 people.