Pontiac, Illinois

Pontiac population, 2020 to 2024

Pontiac lost 154 residents from July 2020 to July 2024, a change of -1.4%. In the latest year it moved by +9. Among 330 Illinois places of 5,000 or more, that growth ranks 187th; the median place changed by -0.9%. The median place of 5,000+ in Illinois has 14,760 people, so Pontiac is 75% of it.

Pontiac covers 8.45 square miles of land and 0.25 of water, for 1,308 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Pontiac is less dense than the typical town.

What county Pontiac is in

All of Pontiac's residents live in Livingston County, which had 35,375 residents in 2024. Pontiac holds 31.2% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Pontiac

1 ZIP Code Tabulation Area (ZCTA) overlaps Pontiac by at least 10% of the ZCTA's or the city's land: 61764. 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 Pontiac is

The Census internal point of Pontiac is at 40.889200, -88.641400. Springfield, the capital, is 93.2 miles SW in a straight line. The nearest larger place is Streator, IL (12,295 people), 19.0 miles away. The nearest city of 100,000 or more is Joliet, IL, 50.4 miles away.

Daylight in Pontiac

At 40.89° N, Pontiac gets about 15 h 07 min of daylight around the June solstice and 9 h 14 min around the December solstice, a swing of 5 h 53 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Pontiac

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Flanagan, 11.4 miles away, with 1,023 people.