Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — STATE/NE/COUNTY/CASS

Cass County, NE ZIP codes

There are 15 ZIP codes in Cass County, NE, in 15 towns, from 68016 to 68463. The largest are 68048 (Plattsmouth), 68347 (Eagle) and 68037 (Louisville). 1 more crosses into it from a neighbouring county: 68003.

The county seat is Plattsmouth.

ZIP codes
15
Partly in it
1 more
Towns
15
County seat
Plattsmouth
County FIPS
31025
Population
27,161
Median household income
$91,836
Land area
557 sq mi
Area codes
402, 531
Metro area
Omaha

Cass County ZIP codes by town

Plattsmouth (county seat)
68048

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Cass County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Cass County.

Map of Cass County ZIP codes

680166803768048680586830468307683476834968366684036840768409684136845568463

The ZIP codes of Cass County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Cass County in numbers

About 27,161 people live in Cass County, in 10,832 households, the 12th most populous of Nebraska's 93 counties. The median household income is $91,836 a year, 20% above the Nebraska median of $76,475 (US: $80,734). The median owner-occupied home is valued at $254,900 (7% above the Nebraska median), and median gross rent is $996 a month. The median age is 41.5; 32.2% of adults 25 and over hold a bachelor's degree or higher (34.6% across Nebraska); the average commute takes 28 minutes.

Population27,161Cass27,161
Households10,832Cass10,832
Median age41.5Cass41.5Nebraska37.2US 38.9
Median household income$91,836Cass$91,836Nebraska$76,475US $80,734
Median home value$254,900Cass$254,900Nebraska$238,600US $332,700
Median gross rent$996Cass$996Nebraska$1,072US $1,413
Bachelor's degree or higher32.2%Cass32.2%Nebraska34.6%US 35.7%
Mean commute28.3 minCass28.3 minNebraska19.2 minUS 26.4 min
Population density49 / sq miCass49 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Cass County

Largest towns in Cass County
TownZIP codesPopulation
Plattsmouth 1 6,731
Louisville 1 1,449
Weeping Water 1 1,407
Eagle 1 1,259
Elmwood 1 774
Greenwood 1 601
Murray 1 431
Cedar Creek 1 427
Murdock 1 228
Union 1 215
Manley 1 204
Avoca 1 190
Alvo 1 123
Nehawka 1 109
South Bend 1 100

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Cass County.

Not sure you are in Cass County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Cass County, with figures

ZIP codes in Cass County
ZIP City Type Population Median income Median home
68016 Cedar Creek , NE Standard 427 $118,456 $391,100
68037 Louisville , NE Standard 2,524 $107,839 $245,800
68048 Plattsmouth , NE Standard 13,435 $89,931 $261,600
68058 South Bend , NE Standard 378 $138,281 $541,700
68304 Alvo , NE Standard 414 $79,000 $300,000
68307 Avoca , NE Standard 336 $61,250 $174,200
68347 Eagle , NE Standard 2,508 $88,281 $237,900
68349 Elmwood , NE Standard 1,224 $76,369 $218,200
68366 Greenwood , NE Standard 957 $90,952 $247,400
68403 Manley , NE Standard 206 $65,000 $162,500
68407 Murdock , NE Standard 878 $99,773 $307,000
68409 Murray , NE Standard 625 $92,045 $220,800
68413 Nehawka , NE Standard 558 $81,944 $303,500
68455 Union , NE Standard 852 $114,643 $320,900
68463 Weeping Water , NE Standard 1,831 $85,972 $199,500

Cite this page

zipcodes.pro. “Cass County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ne/county/cass

Underlying data is public domain or openly licensed — sources, vintages and licences.