Sycamore, Illinois

Sycamore population, 2020 to 2024

Sycamore added 293 residents from July 2020 to July 2024, a change of +1.6%. In the latest year it moved by +131. Among 330 Illinois places of 5,000 or more, that growth ranks 49th; the median place changed by -0.9%. The median place of 5,000+ in Illinois has 14,760 people, so Sycamore is 1.3 times that size.

Sycamore covers 10.12 square miles of land and 0.06 of water, for 1,874 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Sycamore is less dense than the typical town.

What county Sycamore is in

All of Sycamore's residents live in DeKalb County, which had 101,335 residents in 2024. Sycamore holds 18.7% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Sycamore

1 ZIP Code Tabulation Area (ZCTA) overlaps Sycamore by at least 10% of the ZCTA's or the city's land: 60178. 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 Sycamore is

The Census internal point of Sycamore is at 41.996700, -88.677600. Springfield, the capital, is 161.3 miles SSW in a straight line. The nearest larger place is DeKalb, IL (40,491 people), 6.0 miles away. The nearest city of 100,000 or more is Elgin, IL, 18.3 miles away.

Daylight in Sycamore

At 42.00° N, Sycamore gets about 15 h 15 min of daylight around the June solstice and 9 h 07 min around the December solstice, a swing of 6 h 08 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Sycamore

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Cortland, 4.2 miles away, with 4,592 people.