Union is located in Greene County, AL. The population is 440, making Union the 4th largest city in Greene County.
There are 0 public schools in Union with an average Homefacts rating of NA. , and there are 0 registered sex offenders residing in the city. Unemployment in Union is very high and the median home sales price is $0. Detailed and up-to-date Union property reports are available for any property address.