| County Name | Mchenry County |
| FIPS Code | 17111 |
| Population | 308760 |
| Unemployment Rate | 5.3% |
| Time Zone: | Central Standard Time |
List of All Zipcodes in Mchenry County, Illinois | |||||||
|---|---|---|---|---|---|---|---|
| ZIP Code | ZIP Code Name | Population | ZIP Type | ||||
| Twin Lakes | 7357 | Non-Unique | ||||
| Crystal Lake | 11120 | Non-Unique | ||||
| Cary | 26872 | Non-Unique | ||||
| Crystal Lake | 48550 | Non-Unique | ||||
| Fox River Grove | 5545 | Non-Unique | ||||
| Harvard | 13922 | Non-Unique | ||||
| Hebron | 2040 | Non-Unique | ||||
| Island Lake | 8547 | Non-Unique | ||||
| Mchenry | 31620 | Non-Unique | ||||
| Mchenry | 25192 | Non-Unique | ||||
| Richmond | 3598 | Non-Unique | ||||
| Ringwood | 928 | Non-Unique | ||||
| Spring Grove | 10079 | Non-Unique | ||||
| Wonder Lake | 11250 | Non-Unique | ||||
| Woodstock | 32228 | Non-Unique | ||||
| Algonquin | 32193 | Non-Unique | ||||
| Genoa | 7248 | Non-Unique | ||||
| Huntley | 26447 | Non-Unique | ||||
| Marengo | 12533 | Non-Unique | ||||
| Lake In The Hills | 28987 | Non-Unique | ||||
| Union | 1694 | Non-Unique | ||||
| Garden Prairie | 1354 | Non-Unique | ||||
| Alden | N/A | PO Box | ||||
| Crystal Lake | N/A | PO Box | ||||
| List of Counties that Border Mchenry County, Illinois |
|---|
| Boone, IL |
| Cook, IL |
| DeKalb, IL |
| Kane, IL |
| Kenosha, WI |
| Lake, IL |
| Mchenry, IL |
| Walworth, WI |