Mercer, Pennsylvania

Mercer population, 2020 to 2024

Mercer lost 60 residents from July 2020 to July 2024, a change of -3.0%. In the latest year it moved by -12.

Mercer covers 1.16 square miles of land, for 1,657 people per square mile of land. The median Pennsylvania place of 5,000+ has 3,911, so Mercer is less dense than the typical town.

What county Mercer is in

All of Mercer's residents live in Mercer County, which had 108,140 residents in 2024. Mercer holds 1.8% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Mercer

1 ZIP Code Tabulation Area (ZCTA) overlaps Mercer by at least 10% of the ZCTA's or the borough's land: 16137. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a borough that annexed land after 2020 may reach into ZIP codes not listed here.

Where Mercer is

The Census internal point of Mercer is at 41.226500, -80.236300. Harrisburg, the capital, is 187.6 miles ESE in a straight line. The nearest larger place is New Wilmington, PA (2,089 people), 9.0 miles away. The nearest city of 100,000 or more is Pittsburgh, PA, 56.0 miles away.

Daylight in Mercer

At 41.23° N, Mercer 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 Mercer

The eight nearest incorporated places of 1,000+ in Pennsylvania, measured between internal points. The closest is New Wilmington, 9.0 miles away, with 2,089 people.