| ZIP Codes: | 7 ZIP Codes (7 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 402 / 531 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:54:25 PM |
| Population: | 7,053 [See All] |
| FIPS: | 31095 |
| Land Area: | 545 sq mi |
| Water Area: | 5 sq mi |
| Coordinates: | 40.1671, -97.0625 |
| Quick Link: |
7,053 residents live across 7 ZIPs covering 545 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 7,518 to 7,053 from 2014 to 2024 — a -6.2% change. 2 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 68350 (Endicott, $77,344 median) and poorest ZIP 68352 (Fairbury, $55,370) are 9.6 miles apart — a 1.4× income gap across local geography.
Median home values vary 2.3× across this county — from $75,300 in 68350 (Endicott) to $174,200 in 68424 (Plymouth).
Density varies 4× across the county — from 5 people/sq mi in 68440 (Steele City) to 19 in 68352 (Fairbury).
Educational attainment ranges from 8.9% bachelor's+ in 68377 (Jansen) to 33.3% in 68342 (Diller) — the breadth of educational profiles across the area.
Within Nebraska, this is the #38 most populous of 107 counties and ranks #57 for median household income .
Weighted by population, the typical household earns about $60,363 across the county — reflecting what a typical resident sees, not a simple ZIP average.
20.3% of adults age 25+ hold a bachelor's degree or higher (1,010 of 4,970 reporting).
7 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
Jefferson County lost 6.2% of residents between 2014 and 2024.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 68352 | Fairbury | Standard | 4,938 | $55,370 | 263.8 | -3.1% |
| 68424 | Plymouth | Standard | 707 | $68,654 | 66.7 | -8.7% |
| 68342 | Diller | Standard | 497 | $75,000 | 69.9 | 8.3% |
| 68377 | Jansen | Standard | 412 | $72,500 | 55.0 | 1.2% |
| 68338 | Daykin | Standard | 217 | $76,875 | 37.1 | -46.4% |
| 68350 | Endicott | Standard | 173 | $77,344 | 31.3 | -32.9% |
| 68440 | Steele City | Standard | 109 | — | 21.1 | -7.6% |