Third Lake, Illinois

Third Lake population, 2020 to 2024

Third Lake lost 2 residents from July 2020 to July 2024, a change of -0.2%. In the latest year it moved by +5.

Third Lake covers 0.59 square miles of land and 0.29 of water, for 1,888 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Third Lake is less dense than the typical town.

What county Third Lake is in

All of Third Lake's residents live in Lake County, which had 718,604 residents in 2024. Third Lake holds 0.2% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Third Lake

2 ZIP Code Tabulation Areas (ZCTAs) overlap Third Lake by at least 10% of the ZCTA's or the village's land: 60030, 60046. 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 Third Lake is

The Census internal point of Third Lake is at 42.369800, -88.009100. Springfield, the capital, is 198.2 miles SSW in a straight line. The nearest larger place is Grayslake, IL (21,262 people), 2.4 miles away. The nearest city of 100,000 or more is Elgin, IL, 28.0 miles away.

Daylight in Third Lake

At 42.37° N, Third Lake gets about 15 h 17 min of daylight around the June solstice and 9 h 04 min around the December solstice, a swing of 6 h 13 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Third Lake

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Grayslake, 2.4 miles away, with 21,262 people.