Island Lake

A village in McHenry County, Illinois — population 7,951 as of 2020.

Open the map Official city site

This Afternoon 69°F Rain92% precip

Tonight 48°F Rain then Cloudy76% precip

Friday 64°F Mostly Sunny1% precip

Friday Night 43°F Mostly Clear

In and around Island Lake

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Island Lake by the numbers

Population 7,951Population figure, 2020

Households & income

Area: 3.35 sq mi (8.68 km²), 0.21 sq mi water
Median age: 39.1
Households: 2,905
Persons per household: 2.7
Median household income: $103,156
Median house value: $262,500

2020–2024 ACS

Municipal office

Office: FINANCE DIRECTOR
Address: 3720 GREENLEAF AVE, ISLAND LAKE, IL 60042

Municipal record

Official city site Map

In and around Island Lake

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Island Lake by the numbers