Johnstown, Pennsylvania

Johnstown population, 2020 to 2024

Johnstown lost 515 residents from July 2020 to July 2024, a change of -2.8%. In the latest year it moved by -106. Among 193 Pennsylvania places of 5,000 or more, that growth ranks 162nd; the median place changed by +0.2%. The median place of 5,000+ in Pennsylvania has 8,364 people, so Johnstown is 2.1 times that size.

Johnstown covers 5.91 square miles of land and 0.20 of water, for 3,021 people per square mile of land. The median Pennsylvania place of 5,000+ has 3,911, so Johnstown is less dense than the typical town.

What county Johnstown is in

All of Johnstown's residents live in Cambria County, which had 130,108 residents in 2024. Johnstown holds 13.7% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Johnstown

4 ZIP Code Tabulation Areas (ZCTAs) overlap Johnstown by at least 10% of the ZCTA's or the city's land: 15901, 15902, 15905, 15906. 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 Johnstown is

The Census internal point of Johnstown is at 40.326100, -78.919100. Harrisburg, the capital, is 107.3 miles E in a straight line. The nearest larger place is Altoona, PA (42,719 people), 30.0 miles away. The nearest city of 100,000 or more is Pittsburgh, PA, 56.2 miles away.

Daylight in Johnstown

At 40.33° N, Johnstown gets about 15 h 03 min of daylight around the June solstice and 9 h 18 min around the December solstice, a swing of 5 h 45 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Johnstown

The eight nearest incorporated places of 1,000+ in Pennsylvania, measured between internal points. The closest is Southmont, 1.3 miles away, with 1,985 people.