Epworth is a city in Dubuque County, Iowa, United States. It is part of the Dubuque, Iowa Metropolitan Statistical Area. The population was 2,023 at the 2020 census, up from 1,428 in 2000.

Dubuque County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 99,266, making it the eighth-most populous county in Iowa. The county seat is Dubuque. The county is named for Julien Dubuque, the first European settler of Iowa.