Vandalia, Illinois

Vandalia population, 2020 to 2024

Vandalia lost 98 residents from July 2020 to July 2024, a change of -1.3%. In the latest year it moved by -18. Among 330 Illinois places of 5,000 or more, that growth ranks 185th; the median place changed by -0.9%. The median place of 5,000+ in Illinois has 14,760 people, so Vandalia is 50% of it.

Vandalia covers 8.15 square miles of land and 0.02 of water, for 903 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Vandalia is less dense than the typical town.

What county Vandalia is in

All of Vandalia's residents live in Fayette County, which had 21,157 residents in 2024. Vandalia holds 34.8% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Vandalia

1 ZIP Code Tabulation Area (ZCTA) overlaps Vandalia by at least 10% of the ZCTA's or the city's land: 62471. 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 Vandalia is

The Census internal point of Vandalia is at 38.974600, -89.110700. Springfield, the capital, is 62.7 miles NNW in a straight line. The nearest larger place is Centralia, IL (11,787 people), 31.3 miles away. The nearest city of 100,000 or more is Springfield, IL, 63.2 miles away.

Daylight in Vandalia

At 38.97° N, Vandalia gets about 14 h 54 min of daylight around the June solstice and 9 h 26 min around the December solstice, a swing of 5 h 29 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Vandalia

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is St. Elmo, 14.3 miles away, with 1,243 people.