Union is a village in McHenry County, Illinois, United States. The population was 551 at the 2020 census. [3]

Union is most known for being the home of the Illinois Railway Museum. Our Government consists of a Village President and 6 elected Trustees. The Village of Union is open for business on Tuesdays …

Welcome to our dedicated page for Union, located in the state of Illinois, McHenry County. Here, you will find detailed information about this city, including its geographical location, population data, …

Sep 12, 2017 · To visit the Illinois Railway Museum means you are a stone’s throw away from Union, Illinois downtown. There you will find the McHenry County Historical Society Museum.

The small town of Union may be small in population but is home to some big things.

Get directions, maps, and traffic for Union, IL. Check flight prices and hotel availability for your visit.

When you ride an electric streetcar, you have to wonder why they are not still used! With the same (or greater) capacity as a modern bus and with no vehicle emissions, they are just great. The Illinois …

Illinois Railway Museum, Union. 65,851 likes · 652 talking about this · 65,876 were here. The Illinois Railway Museum in Union, McHenry County, Illinois...

According to our research of Illinois and other state lists, there were 5 registered sex offenders living in Union, Illinois as of December 30, 2025. The ratio of all residents to sex offenders in Union is 96 to 1.

Union, IL McHenry County, 53 miles NW of the Loop. Platted in 1851 as a station on the Galena & Chicago Union Railroad, the village failed to prosper. Incorporated in 1897, Union remained a …