Illinois · Census place 1737894

Island Lake, Illinois

Island Lake is a village in 2 counties of Illinois with an estimated 8,066 residents on July 1, 2024. It is the 259th largest of 651 incorporated places of 1,000+ people in the state.

Population 2024
8,066
#259 of 651 in Illinois
Change since 2020
+0.4%
+30 people
Land area
3.4 sq mi
+ 0.21 sq mi water
Density
2,393 / sq mi
State median 2,177
Orange pin: Island Lake. Shaded: counties it spans. Dark pin: Springfield.

Island Lake population, 2020 to 2024

Island Lake added 30 residents from July 2020 to July 2024, a change of +0.4%. In the latest year it moved by +33. Among 330 Illinois places of 5,000 or more, that growth ranks 90th; the median place changed by -0.9%. The median place of 5,000+ in Illinois has 14,760 people, so Island Lake is 55% of it.

8,03620208,03120217,97420228,03320238,0662024
July 1 estimates. The April 2020 estimates base was 8,051. The axis starts above zero so yearly changes are visible.

Island Lake covers 3.37 square miles of land and 0.21 of water, for 2,393 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Island Lake is close to the typical town.

The 2 counties Island Lake spans

Island Lake crosses county lines. The Census county-part estimates split its 8,066 residents as follows; McHenry County holds 58.2% of them. The shaded shapes are on the map above; dots mark the eight nearest places.

  1. 01McHenry County4,698
  2. 02Lake County3,368
Residents inside each county, Census Vintage 2024 county-part estimates (SUMLEV 157).

ZIP codes in Island Lake

1 ZIP Code Tabulation Area (ZCTA) overlaps Island Lake by at least 10% of the ZCTA's or the village's land: 60042. 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 Island Lake is

The Census internal point of Island Lake is at 42.278800, -88.200500. Springfield, the capital, is 188.4 miles SSW in a straight line. The nearest larger place is Wauconda, IL (14,055 people), 3.4 miles away. The nearest city of 100,000 or more is Elgin, IL, 17.8 miles away.

Internal point

Decimal
42.278800, -88.200500
DMS
42°16'43.68"N 88°12'1.80"W
UTM
16N 401011.9E 4681429.5N
Geohash
dp928bw7g
Plus code
86JH7QHX+GQ

Daylight in Island Lake

At 42.28° N, Island Lake gets about 15 h 17 min of daylight around the June solstice and 9 h 05 min around the December solstice, a swing of 6 h 11 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Island Lake

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Port Barrington, 2.4 miles away, with 1,579 people.

Questions people ask

What is the population of Island Lake, IL?

8,066 on July 1, 2024, in the Census Vintage 2024 estimates. That is up 30 (0.4%) from 8,036 in July 2020.

What county is Island Lake in?

It spans 2 counties: McHenry County (4,698 residents), Lake County (3,368 residents).

What ZIP codes cover Island Lake?

1 ZIP Code Tabulation Area overlaps it by at least 10% of either area: 60042.

How far is Island Lake from Springfield?

188.4 miles (303.2 km) in a straight line, heading SSW from Island Lake.

What is the nearest larger city to Island Lake?

Wauconda, IL, with 14,055 residents, 3.4 miles away between internal points.

Sources and data as of

Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.

  1. 01Census Vintage 2024 subcounty population estimates
  2. 02Census 2024 Gazetteer, places
  3. 03Census 2020 ZCTA to place relationship file
  4. 04Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.