Sidney is a city in Fremont County, Iowa, United States.

Richards' wife suggested they rename the city for her hometown of Sidney, Ohio.

The Sidney Iowa Championship Rodeo, operated by American Legion Post No.

According to the United States Census Bureau, the city has a total area of 1.38 square miles (3.57 km2), all land.

There were 500 housing units at an average density of 364.7 per square mile (140.8/km2).

There were 514 housing units at an average density of 372.5 per square mile (143.8/km2).

33.2% of all households were made up of individuals, and 16% had someone living alone who was 65 years of age or older.

There were 538 housing units at an average density of 425.7 per square mile (164.4/km2).

28.9% of all households were made up of individuals, and 18.3% had someone living alone who was 65 years of age or older.