McHenry County
| Use attributes for filter ! | |
| Population | 309,122 (2017) |
|---|---|
| County seat | Woodstock |
| University | McHenry County College |
| Points of interest | Illinois Railway Museum |
| Did you know | McHenry is the third-highest-income Illinois location by per capita income ($31,838). |
| Date of Reg. | |
| Date of Upd. | |
| ID | 1195040 |
About McHenry County
McHenry County is a county located in the U. S. state of Illinois. According to the 2010 census, it had a population of 308,760, making it the sixth-most populous county in Illinois. Its county seat is Woodstock.