sentences:  The population density was 130.5 people per square mile (50.4/km²).There were 664 housing units at an average density of 93.1/sq mi (36.0/km²).The racial makeup of the city was 97.31% White, 0.11% Black or African American, 0.11% Native American, 0.22% Asian, 0.22% from other races, and 2.04% from two or more races.