Adel is home to approximately 4,300 people. We are located in Dallas County Iowa about 13 miles West of the intersection of Interstate 80 and Interstate 35. Adel has been a community since 1847, growing with pride, to be the community it is today. Adel is one of a few towns in Iowa with brick streets paving the downtown area. Our brick streets connect us to our past much like this website connects us to our future.