Ocheyedan is a city in Osceola County, Iowa, United States.

[2] Ocheyedan had its start in the year 1884 by the building of the Burlington, Cedar Rapids & Northern Railroad through that territory.

[3] Ocheyedan was declared the "most difficult to pronounce" place name in the state of Iowa by Reader's Digest.

[5] According to the United States Census Bureau, the city has a total area of 1.16 square miles (3.00 km2), all land.

As of the census of 2020,[8] there were 439 people, 211 households, and 127 families residing in the city.

There were 243 housing units at an average density of 214.7 per square mile (82.9/km2).

As of the census[9] of 2010, there were 490 people, 223 households, and 137 families residing in the city.

There were 252 housing units at an average density of 217.2 per square mile (83.9/km2).

35.9% of all households were made up of individuals, and 17.9% had someone living alone who was 65 years of age or older.

There were 254 housing units at an average density of 218.5 per square mile (84.4/km2).

31.8% of all households were made up of individuals, and 17.5% had someone living alone who was 65 years of age or older.