Cedar County Clerk — official record keeper for elections, marriage licenses, and public records in Cedar County, Nebraska.

Cedar County Courthouse — seat of county government in Hartington, Nebraska, housing clerk, treasurer, sheriff, and court offices.

Emergency management agency for Cedar County, at Hartington.

The Cedar County Fair is held each July at the Cedar County Fairgrounds in Hartington, with 4-H shows, a carnival and grandstand concerts.

The Cedar County Historical Museum at 304 W Franklin St is in a home built in 1900, with antique machinery, horse-drawn buggies, Hartington's first fire engine, a log cabin, a carriage house and a Cedar County genealogy file.

Cedar County Sheriff's Office — primary law enforcement for Cedar County, Nebraska, serving Hartington and surrounding areas.

Cedar County Treasurer — property taxes, motor vehicle registrations, and county financial services in Cedar County, Nebraska.

Cedar County Veterinary Services, a large animal veterinary clinic in Hartington, Nebraska.

Cedar Security Bank is a locally-owned bank with convenient locations in Cedar County, providing friendly and courteous service in all aspects of banking and insurance.

Central Valley Ag in Hartington provides grain, agronomy, energy, and feed products and services to Cedar County farmers and producers as part of a regional cooperative network.