Cass County, Nebraska

Cass County is a county in the U.S. state of Nebraska. As of the 2020 census, the population was 26,598. and was estimated to be 27,657 in 2025.

Cass County is included in the Omaha–Council Bluffs metropolitan area.

In the Nebraska license plate system, Cass County was represented by the prefix "20" (as it had the 20th-largest number of vehicles registered in the state when the license plate system was established in 1922).

History

Cass County was created on November 23, 1854, and was named for General Lewis Cass, an American military officer, politician, and statesman.

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 United States Census Bureau, the county has a total area of , of which is land and (1.59%) is water. It is the 67th-largest county in Nebraska by total area.

Major highways

20px Interstate 80
20px U.S. Highway 6
20px U.S. Highway 34
20px U.S. Highway 75
20px Nebraska Highway 1
20px Nebraska Highway 43
20px Nebraska Highway 50
20px Nebraska Highway 63
20px Nebraska Highway 66
20px Nebraska Highway 67

Protected areas

Beaver Lake
Louisville State Recreation Area
Eugene T. Mahoney State Park
Platte River State Park
Schilling Wildlife Management Area

Adjacent counties

Sarpy County – north
Mills County, Iowa – northeast
Fremont County, Iowa – southeast
Otoe County – south
Lancaster County – west
Saunders County – northwest

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.

Demographics

2020 census

As of the 2020 census, the county had a population of 26,598. The median age was 42.4 years. 23.9% of residents were under the age of 18 and 18.6% of residents were 65 years of age or older. For every 100 females there were 102.4 males, and for every 100 females age 18 and over there were 100.4 males age 18 and over.

The racial makeup of the county was 92.6% White, 0.4% Black or African American, 0.4% American Indian and Alaska Native, 0.4% Asian, 0.0% Native Hawaiian and Pacific Islander, 1.2% from some other race, and 5.0% from two or more races. Hispanic or Latino residents of any race comprised 3.7% of the population.

There were 10,315 households in the county, of which 30.8% had children under the age of 18 living with them and 17.8% had a female householder with no spouse or partner present. About 23.2% of all households were made up of individuals and 10.9% had someone living alone who was 65 years of age or older.

Factoryville
Mynard
Rock Bluff
Wabash

Census divisions

Cass County is divided into the following divisions, called precincts, except for the cities of Plattsmouth and Weeping Water.

Avoca
Center
East Rock Bluff
Eight Mile Grove
Elmwood
Greenwood
Liberty
City of Louisville
Mount Pleasant
Nehawka
City of Plattsmouth
Plattsmouth
Salt Creek
South Bend
Stove Creek
Tipton
Weeping Water (City)
Weeping Water
West Rock Bluff

Politics

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.