Dahlgren is located in Hamilton County, IL. The population is 434, making Dahlgren the 2nd largest city in Hamilton County.
There are 1 public schools in Dahlgren with an average Homefacts rating of C+. The total crime rate for Dahlgren is very low , and there are 0 registered sex offenders residing in the city. Unemployment in Dahlgren is moderate and the median home sales price is $0. Detailed and up-to-date Dahlgren property reports are available for any property address.
Cities near Dahlgren include Dahlgren Township, Belle Rive and Pendleton Township.