Delavan, Illinois

Delavan population, 2020 to 2024

Delavan lost 29 residents from July 2020 to July 2024, a change of -1.8%. In the latest year it moved by +1.

Delavan covers 1.44 square miles of land, for 1,073 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Delavan is less dense than the typical town.

What county Delavan is in

All of Delavan's residents live in Tazewell County, which had 129,821 residents in 2024. Delavan holds 1.2% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Delavan

1 ZIP Code Tabulation Area (ZCTA) overlaps Delavan by at least 10% of the ZCTA's or the city's land: 61734. 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 Delavan is

The Census internal point of Delavan is at 40.371000, -89.546100. Springfield, the capital, is 41.1 miles S in a straight line. The nearest larger place is Tremont, IL (2,247 people), 11.1 miles away. The nearest city of 100,000 or more is Peoria, IL, 26.5 miles away.

Daylight in Delavan

At 40.37° N, Delavan gets about 15 h 03 min of daylight around the June solstice and 9 h 17 min around the December solstice, a swing of 5 h 46 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Delavan

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Tremont, 11.1 miles away, with 2,247 people.