St. Jacob, Illinois

St. Jacob population, 2020 to 2024

St. Jacob lost 7 residents from July 2020 to July 2024, a change of -0.5%. In the latest year it moved by -4.

St. Jacob covers 0.85 square miles of land, for 1,609 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so St. Jacob is less dense than the typical town.

What county St. Jacob is in

All of St. Jacob's residents live in Madison County, which had 263,017 residents in 2024. St. Jacob holds 0.5% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in St. Jacob

2 ZIP Code Tabulation Areas (ZCTAs) overlap St. Jacob by at least 10% of the ZCTA's or the village's land: 62249, 62281. 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 St. Jacob is

The Census internal point of St. Jacob is at 38.718000, -89.763300. Springfield, the capital, is 73.7 miles N in a straight line. The nearest larger place is Highland, IL (10,028 people), 5.5 miles away. The nearest city of 100,000 or more is St. Louis, MO, 26.6 miles away.

Daylight in St. Jacob

At 38.72° N, St. Jacob gets about 14 h 53 min of daylight around the June solstice and 9 h 27 min around the December solstice, a swing of 5 h 25 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near St. Jacob

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Highland, 5.5 miles away, with 10,028 people.