Edgar is a city in Clay County, Nebraska, United States.

[6] According to the United States Census Bureau, the city has a total area of 0.79 square miles (2.05 km2), all land.

39.2% of all households were made up of individuals, and 20.7% had someone living alone who was 65 years of age or older.

34.2% of all households were made up of individuals, and 22.1% had someone living alone who was 65 years of age or older.

Sedan is an unincorporated area about 4.5 miles southeast of Edgar on the intersection of Nebraska 65a Spur and County Road 348 in Nuckolls County, which runs next to the Union Pacific railroad.

It is the site of an Aurora Cooperative grain elevator facility.

The United States Postal Service does not recognize Sedan, and requires mail to be addressed to Edgar using its zip code.