header> Open Interactive Map

ZIP Code 61670

Crystal Lake, McHenry County, Illinois (IL) • Standard Postal Code

IL
City
Crystal Lake
County
McHenry County
State / Territory
Illinois
Area Code
(217)
Coordinates
37.6000, -105.9000
Timezone
America/Chicago
Est. Population
222,000
Country
United States (US)
View 61670 on Interactive Map → All ZIP Codes in Crystal Lake