In the Nebraska license plate system, Cass County is represented by the prefix 20 (it had the 20th-largest number of vehicles registered in the county when the license plate system was established in 1922).
Geography
Cass County lies on the east side of Nebraska. Its east boundary line abuts the west boundary line of the state of Iowa, across the Missouri River. According to the US Census Bureau, the county has an area of 566 square miles (1,470 km2), of which 557 square miles (1,440 km2) is land and 8.4 square miles (22 km2) (1.5%) is water.[7]
Due to its proximity to Cass County, Iowa, and because both of those counties receive most of their broadcasts from Omaha, Nebraska, references to 'Cass County' must be frequently disambiguated, or result in confusion.[citation needed]
There were 9,161 households, out of which 35.80% had children under the age of 18 living with them, 63.30% were married couples living together, 7.60% had a female householder with no husband present, and 25.70% were non-families. 21.60% of all households were made up of individuals, and 9.40% had someone living alone who was 65 years of age or older. The average household size was 2.63 and the average family size was 3.07.
The county population contained 27.90% under the age of 18, 7.00% from 18 to 24, 29.00% from 25 to 44, 23.80% from 45 to 64, and 12.30% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 97.70 males. For every 100 females age 18 and over, there were 95.00 males.
The median income for a household in the county was $46,515, and the median income for a family was $52,196. Males had a median income of $36,639 versus $24,612 for females. The per capita income for the county was $20,156. About 4.20% of families and 5.20% of the population were below the poverty line, including 7.10% of those under age 18 and 4.50% of those age 65 or over.
At the presidential level, Cass County voters have voted predominantly for the Republican candidate. In only one national election since 1936 has the county given a majority to the Democratic Party candidate, that being 1964, which Lyndon B. Johnson won in a landslide nationally.
United States presidential election results for Cass County, Nebraska[15]
^"Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
^Fitzpatrick, Lilian Linder (1925). Nebraska Place-Names. Lincoln: University of Nebraska Studies in Language, Literature, and Criticism. p. 30. Retrieved December 18, 2014.