New Castle, Pennsylvania

New Castle population, 2020 to 2024

New Castle lost 568 residents from July 2020 to July 2024, a change of -2.6%. In the latest year it moved by -103. Among 193 Pennsylvania places of 5,000 or more, that growth ranks 155th; the median place changed by +0.2%. The median place of 5,000+ in Pennsylvania has 8,364 people, so New Castle is 2.6 times that size.

New Castle covers 8.31 square miles of land and 0.24 of water, for 2,567 people per square mile of land. The median Pennsylvania place of 5,000+ has 3,911, so New Castle is less dense than the typical town.

What county New Castle is in

All of New Castle's residents live in Lawrence County, which had 84,233 residents in 2024. New Castle holds 25.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in New Castle

3 ZIP Code Tabulation Areas (ZCTAs) overlap New Castle by at least 10% of the ZCTA's or the city's land: 16101, 16102, 16105. 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 New Castle is

The Census internal point of New Castle is at 40.995600, -80.345800. Harrisburg, the capital, is 188.4 miles ESE in a straight line. The nearest larger place is Youngstown, OH (59,123 people), 17.2 miles away. The nearest city of 100,000 or more is Pittsburgh, PA, 43.0 miles away.

Daylight in New Castle

At 41.00° N, New Castle gets about 15 h 08 min of daylight around the June solstice and 9 h 13 min around the December solstice, a swing of 5 h 54 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near New Castle

The eight nearest incorporated places of 1,000+ in Pennsylvania, measured between internal points. The closest is Bessemer, 7.6 miles away, with 1,043 people.