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ZIP Code 61637

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

IL
City
Crystal Lake
County
McHenry County
State / Territory
Illinois
Area Code
(217)
Coordinates
36.9400, -106.5600
Timezone
America/Chicago
Est. Population
106,500
Country
United States (US)
View 61637 on Interactive Map → All ZIP Codes in Crystal Lake