St. Clair, Pennsylvania

St. Clair population, 2020 to 2024

St. Clair added 19 residents from July 2020 to July 2024, a change of +0.7%. In the latest year it moved by +5.

St. Clair covers 1.23 square miles of land, for 2,246 people per square mile of land. The median Pennsylvania place of 5,000+ has 3,911, so St. Clair is less dense than the typical town.

What county St. Clair is in

All of St. Clair's residents live in Schuylkill County, which had 144,523 residents in 2024. St. Clair holds 1.9% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in St. Clair

2 ZIP Code Tabulation Areas (ZCTAs) overlap St. Clair by at least 10% of the ZCTA's or the borough's land: 17901, 17970. 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 St. Clair is

The Census internal point of St. Clair is at 40.721100, -76.190300. Harrisburg, the capital, is 48.2 miles SW in a straight line. The nearest larger place is Pottsville, PA (13,404 people), 3.0 miles away. The nearest city of 100,000 or more is Allentown, PA, 38.3 miles away.

Daylight in St. Clair

At 40.72° N, St. Clair gets about 15 h 06 min of daylight around the June solstice and 9 h 15 min around the December solstice, a swing of 5 h 51 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near St. Clair

The eight nearest incorporated places of 1,000+ in Pennsylvania, measured between internal points. The closest is Port Carbon, 2.1 miles away, with 1,810 people.