| Zip Code | Primary City | Secondary City | | 60020 | Fox Lake | Volo | | 60030 | Grayslake | Volo, Wildwood, Gages Lake, Hainesville, Third Lake, | | 60041 | Ingleside | Volo, Stanton Point, Long Lake, | | 60051 | Mchenry | Volo, Holiday Hills, Johnsburg, Lakemoor, | | 60073 | Round Lake | Volo, Hainesville, Round Lake Beach, Round Lake Heights, Round Lake Park, Round Lk Bch, Round Lk Hts, Round Lk Park, |
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