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zipcodes.pro — STATE/NE/COUNTY/NEMAHA

Nemaha County, NE ZIP codes

Nemaha County, NE has 6 ZIP codes, in 6 towns: 68305, 68378, 68421, 68321, 68320 and 68414.

The county seat is Auburn.

ZIP codes
6
Towns
6
County seat
Auburn
County FIPS
31127
Population
7,046
Median household income
$60,924
Land area
407 sq mi

Nemaha County ZIP codes by town

Auburn (county seat)
68305

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.

Map of Nemaha County ZIP codes

683056832068321683786841468421

The ZIP codes of Nemaha 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.

Nemaha County in numbers

About 7,046 people live in Nemaha County, in 2,847 households, the 41st most populous of Nebraska's 93 counties. The median household income is $60,924 a year, 20% below the Nebraska median of $76,475 (US: $80,734). The median owner-occupied home is valued at $131,700 (45% below the Nebraska median), and median gross rent is $772 a month. The median age is 39.3; 29.4% of adults 25 and over hold a bachelor's degree or higher (34.6% across Nebraska); the average commute takes 21 minutes.

Population7,046Nemaha7,046
Households2,847Nemaha2,847
Median age39.3Nemaha39.3Nebraska37.2US 38.9
Median household income$60,924Nemaha$60,924Nebraska$76,475US $80,734
Median home value$131,700Nemaha$131,700Nebraska$238,600US $332,700
Median gross rent$772Nemaha$772Nebraska$1,072US $1,413
Bachelor's degree or higher29.4%Nemaha29.4%Nebraska34.6%US 35.7%
Mean commute20.6 minNemaha20.6 minNebraska19.2 minUS 26.4 min
Population density17 / sq miNemaha17 / 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 Nemaha County

Largest towns in Nemaha County
TownZIP codesPopulation
Auburn 1 3,470
Peru 1 653
Johnson 1 339
Brock 1 120
Brownville 1 102
Nemaha 1 64

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 Nemaha County.

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

Every ZIP code in Nemaha County, with figures

ZIP codes in Nemaha County
ZIP City Type Population Median income Median home
68305 Auburn , NE Standard 4,351 $57,906 $125,400
68320 Brock , NE Standard 348 $44,375 $122,500
68321 Brownville , NE Standard 480 — $309,800
68378 Johnson , NE Standard 677 $76,071 $173,400
68414 Nemaha , NE Standard 102 $82,188 $66,900
68421 Peru , NE Standard 987 $61,600 $113,800

Cite this page

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

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