There are 18 zip codes in McHenry County, Illinois. The most populated is 60014, located in Crystal Lake. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
6001448,568Crystal Lake
6009833,116Woodstock
6010232,227Algonquin
6005031,820Mchenry
6014229,449Huntley
6015628,958Lake In The Hills
6001326,266Cary
6005123,598Mchenry
6003313,574Harvard
6015212,264Marengo
6009711,865Wonder Lake
6001211,736Crystal Lake
600819,194Spring Grove
600215,199Fox River Grove
600713,938Richmond
600342,061Hebron
601801,721Union
60072959Ringwood
showing: 18 rows

Zip Codes in McHenry County, Illinois by Population (2024)