[1] According to the 2021 census gazetteer files, Crooked Creek Township has a total area of 55.91 square miles (144.81 km2), all land.

[2] (This list is based on USGS data and may include former settlements.)

The township contains these sixteen cemeteries: Andrews, Aten, Brooks, Brown, Coad, Harrisburg, Hayes, Hidalgo, Hunt/Cummins, Kilgore, Plainfield, Ross, Songer, Swick, Swick Family and Ward.

There were 319 housing units at an average density of 5.71 per square mile (2.20/km2).

25.80% of all households were made up of individuals, and 9.90% had someone living alone who was 65 years of age or older.