Cass County Nebraska 20

Cass County, Nebraska

County Seat: Plattsmouth
Founded: 1855
Named For: General Lewis Cass, U.S. Senator and statesman
License Plate Prefix: 20
Population: 26,598 (2020 census)
Area: 566 sq mi

History

Cass County was established in 1855 and named after Lewis Cass, a prominent American statesman. Its early development centered on the Missouri River, where Plattsmouth became a major ferry crossing and trade hub for settlers moving west. The arrival of railroads in the late 19th century accelerated growth, connecting towns like Weeping Water, Louisville, and Elmwood to regional markets. Agriculture, limestone quarries, and river commerce shaped the county’s early economy, while proximity to Omaha and Lincoln later encouraged suburban expansion and tourism.

The county’s history reflects frontier migration, river‑valley settlement, and the evolution of small towns that remain central to local identity.

Geography

Location: Eastern Nebraska along the Missouri River
Landscape: River bluffs, rolling hills, fertile farmland, quarries, and wooded valleys

Adjacent Counties:

• Sarpy County (north)
• Saunders County (northwest)
• Lancaster County (west)
• Otoe County (south)
• Mills County, Iowa (east, across the Missouri River)

Culture & Landmarks

• Platte River State Park – Trails, scenic overlooks, and outdoor recreation between Louisville and South Bend.
• Maha Music Festival Grounds (nearby region) – A major cultural draw for the area.
• Louisville State Recreation Area – Lakes, camping, and family‑friendly outdoor activities.
• Historic Plattsmouth – Riverfront architecture and landmarks reflecting early settlement.

Notable Communities

• Plattsmouth – County seat with strong riverfront heritage.
• Weeping Water – Known for limestone quarries and local festivals.
• Louisville – Community near major recreation areas.
• Elmwood – Town with deep agricultural roots.
• Eagle, Murray, Greenwood, Avoca, Manley – Small towns with close‑knit rural identity.

Events & Attractions

• Weeping Water Limestone Day – Celebrating the county’s quarrying heritage.
• Cass County Fair – Livestock shows, rodeo events, and community celebrations.
• Outdoor Recreation – Hiking, fishing, camping, and scenic drives along the Platte and Missouri River corridors.

Living in Cass County

Cass County blends rural charm, river‑valley scenery, and growing suburban communities. Plattsmouth anchors county government and services, while Weeping Water, Louisville, Elmwood, and smaller towns maintain strong agricultural and cultural traditions. Residents value the area’s natural beauty, proximity to Omaha and Lincoln, and strong community identity.

Cass County at a Glance

Cass County, Nebraska — proclaimed 23 November 1854 among the original eight counties and defined by the Territorial Legislature on 7 March 1855; both dates are correct at different stages. Named for General Lewis Cass, Michigan territorial governor and the 1848 Democratic presidential nominee. County seat Plattsmouth, which began in 1854 as a trading post called the Barracks and was incorporated as a city in March 1855. The seat was fought over in 1888–89, when outlying precincts led by Weeping Water argued the courthouse was a full day’s travel away — History Nebraska calls it “a glorious fight” of charge and counter-charge. Plattsmouth won in district court and again in the Nebraska Supreme Court. [nd_county_listings county="cass"] listings across [nd_county_towns county="cass"] towns.

Getting there: Interstate 80 crosses the northwest corner — exits 420 and 426 are both in Cass County, not Saunders, whatever the Ashland addresses suggest. US-75 runs north and south along the Missouri, US-6 east and west, with NE-1, 50, 66 and 67. The Burlington & Missouri River Railroad entered Nebraska at Plattsmouth in 1870, and most Cass villages date themselves by which line arrived. Central Time.

For visitors: this is the state-park corner of Nebraska. Platte River State Park (453 acres, created 1982, two miles west of Louisville) has full-hookup camping, cabins, tipis, two observation towers and about ten miles of trail. Louisville State Recreation Area adds 192 acres and five sandpit lakes. Eugene T. Mahoney State Park and the Strategic Air Command & Aerospace Museum both sit at I-80 exit 426 with Ashland addresses. The county is limestone country — Ash Grove Cement has quarried at Louisville since 1927 across some 4,000 acres.

Two names local lists claim that belong elsewhere: Raymond Chandler was born in Chicago in 1888 and only spent his early childhood in Plattsmouth; Bess Streeter Aldrich was born at Cedar Falls, Iowa, and moved to Elmwood in 1909 — though her house there, The Elms, is genuinely on the National Register.

Cass County · Metro · Interstate 80 Corridor · Explore Nebraska