Hamilton, Illinois

Hamilton population, 2020 to 2024

Hamilton lost 81 residents from July 2020 to July 2024, a change of -3.0%. In the latest year it moved by -27.

Hamilton covers 3.56 square miles of land and 1.79 of water, for 748 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Hamilton is less dense than the typical town.

What county Hamilton is in

All of Hamilton's residents live in Hancock County, which had 17,008 residents in 2024. Hamilton holds 15.7% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Hamilton

1 ZIP Code Tabulation Area (ZCTA) overlaps Hamilton by at least 10% of the ZCTA's or the city's land: 62341. 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 Hamilton is

The Census internal point of Hamilton is at 40.391500, -91.361300. Springfield, the capital, is 99.8 miles ESE in a straight line. The nearest larger place is Keokuk, IA (9,462 people), 2.5 miles away. The nearest city of 100,000 or more is Davenport, IA, 89.7 miles away.

Daylight in Hamilton

At 40.39° N, Hamilton gets about 15 h 04 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 Hamilton

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Warsaw, 4.5 miles away, with 1,456 people.