| ZIP Codes: | 7 ZIP Codes (7 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 402 / 531 / 712 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:07 PM |
| Population: | 6,987 [See All] |
| FIPS: | 31127 |
| Land Area: | 382 sq mi |
| Water Area: | 3 sq mi |
| Coordinates: | 40.4228, -95.8398 |
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6,987 residents live across 7 ZIPs covering 382 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 7,095 to 6,987 from 2014 to 2024 — a -1.5% change. 2 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 68414 (Nemaha, $82,188 median) and poorest ZIP 68320 (Brock, $44,375) are 18.1 miles apart — a 1.9× income gap across local geography.
Median home values vary 4.6× across this county — from $66,900 in 68414 (Nemaha) to $309,800 in 68321 (Brownville).
Density varies 12× across the county — from 2 people/sq mi in 68414 (Nemaha) to 30 in 68305 (Auburn).
Educational attainment ranges from 21.4% bachelor's+ in 68414 (Nemaha) to 61.5% in 68321 (Brownville) — the breadth of educational profiles across the area.
Within Nebraska, this is the #39 most populous of 107 counties and ranks #87 for median household income .
Weighted by population, the typical household earns about $59,906 across the county — reflecting what a typical resident sees, not a simple ZIP average.
29.0% of adults age 25+ hold a bachelor's degree or higher (1,340 of 4,616 reporting).
7 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 68305 | Auburn | Standard | 4,351 | $57,906 | 145.8 | 4.7% |
| 68421 | Peru | Standard | 987 | $61,600 | 54.5 | -9.0% |
| 68378 | Johnson | Standard | 677 | $76,071 | 53.5 | -5.6% |
| 68321 | Brownville | Standard | 480 | — | 29.9 | 10.3% |
| 68320 | Brock | Standard | 348 | $44,375 | 53.6 | -9.6% |
| 68414 | Nemaha | Standard | 102 | $82,188 | 42.6 | -59.4% |
| 68379 | Julian | Standard | 42 | $41,250 | 2.2 | -36.4% |