Westmont, Illinois

Westmont population, 2020 to 2024

Westmont lost 104 residents from July 2020 to July 2024, a change of -0.4%. In the latest year it moved by +167. Among 330 Illinois places of 5,000 or more, that growth ranks 138th; the median place changed by -0.9%. The median place of 5,000+ in Illinois has 14,760 people, so Westmont is 1.6 times that size.

Westmont covers 5.03 square miles of land and 0.11 of water, for 4,833 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Westmont is denser than the typical town.

What county Westmont is in

All of Westmont's residents live in DuPage County, which had 937,142 residents in 2024. Westmont holds 2.6% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Westmont

1 ZIP Code Tabulation Area (ZCTA) overlaps Westmont by at least 10% of the ZCTA's or the village's land: 60559. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a village that annexed land after 2020 may reach into ZIP codes not listed here.

Where Westmont is

The Census internal point of Westmont is at 41.794400, -87.972900. Springfield, the capital, is 164.5 miles SSW in a straight line. The nearest larger place is Downers Grove, IL (50,552 people), 2.5 miles away. The nearest city of 100,000 or more is Naperville, IL, 10.3 miles away.

Daylight in Westmont

At 41.79° N, Westmont gets about 15 h 13 min of daylight around the June solstice and 9 h 08 min around the December solstice, a swing of 6 h 05 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Westmont

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Clarendon Hills, 0.9 miles away, with 8,703 people.