| ZIP Codes: | 8 ZIP Codes (8 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 515 / 712 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:11:52 PM |
| Population: | 8,631 [See All] |
| FIPS: | 19073 |
| Land Area: | 539 sq mi |
| Water Area: | 2 sq mi |
| Coordinates: | 42.0406, -94.3453 |
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8,631 residents live across 8 ZIPs covering 539 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 8,992 to 8,631 from 2014 to 2024 — a -4.0% change. 3 ZIPs gained residents, 3 lost (and 1 held flat).
The county's wealthiest ZIP 50064 (Dana, $96,635 median) and poorest ZIP 50129 (Jefferson, $60,671) are 9.7 miles apart — a 1.6× income gap across local geography.
Median home values vary 2.4× across this county — from $92,200 in 50107 (Grand Junction) to $223,000 in 50235 (Rippey).
Density varies 7× across the county — from 5 people/sq mi in 50064 (Dana) to 30 in 50129 (Jefferson).
Educational attainment ranges from 13.9% bachelor's+ in 50235 (Rippey) to 34.5% in 50064 (Dana) — the breadth of educational profiles across the area.
Within Iowa, this is the #85 most populous of 99 counties and ranks #49 for median household income .
Weighted by population, the typical household earns about $65,024 across the county — reflecting what a typical resident sees, not a simple ZIP average.
21.5% of adults age 25+ hold a bachelor's degree or higher (1,333 of 6,186 reporting).
8 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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 50129 | Jefferson | Standard | 5,014 | $60,671 | 165.5 | -1.7% |
| 51462 | Scranton | Standard | 1,049 | $69,286 | 110.3 | 4.2% |
| 50107 | Grand Junction | Standard | 764 | $69,022 | 48.2 | -35.1% |
| 50050 | Churdan | Standard | 712 | $64,432 | 77.6 | 17.3% |
| 50217 | Paton | Standard | 561 | $66,771 | 66.0 | -15.0% |
| 50235 | Rippey | Standard | 431 | $89,583 | 48.0 | 26.4% |
| 50064 | Dana | Standard | 100 | $96,635 | 21.9 | 0.0% |
| 50059 | Cooper | Standard | — | — | 1.5 | — |