Peru, Illinois

Peru population, 2020 to 2024

Peru lost 116 residents from July 2020 to July 2024, a change of -1.2%. In the latest year it moved by +15. Among 330 Illinois places of 5,000 or more, that growth ranks 175th; the median place changed by -0.9%. The median place of 5,000+ in Illinois has 14,760 people, so Peru is 66% of it.

Peru covers 10.32 square miles of land and 0.13 of water, for 949 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Peru is less dense than the typical town.

The 2 counties Peru spans

Peru crosses county lines. The Census county-part estimates split its 9,793 residents as follows; LaSalle County holds 100.0% of them. The shaded shapes are on the map above; dots mark the eight nearest places.

ZIP codes in Peru

1 ZIP Code Tabulation Area (ZCTA) overlaps Peru by at least 10% of the ZCTA's or the city's land: 61354. 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 Peru is

The Census internal point of Peru is at 41.357900, -89.139400. Springfield, the capital, is 112.2 miles SSW in a straight line. The nearest larger place is Ottawa, IL (18,775 people), 16.4 miles away. The nearest city of 100,000 or more is Peoria, IL, 48.7 miles away.

Daylight in Peru

At 41.36° N, Peru gets about 15 h 10 min of daylight around the June solstice and 9 h 11 min around the December solstice, a swing of 5 h 59 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Peru

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is LaSalle, 2.7 miles away, with 9,424 people.