| ZIP Codes: | 8 ZIP Codes (8 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 712 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:11:51 PM |
| Population: | 11,473 [See All] |
| FIPS: | 19035 |
| Land Area: | 545 sq mi |
| Water Area: | 0 sq mi |
| Coordinates: | 42.7407, -95.6293 |
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11,473 residents live across 8 ZIPs covering 545 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 11,918 to 11,473 from 2014 to 2024 — a -3.7% change. 2 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 51029 (Larrabee, $86,042 median) and poorest ZIP 51061 (Washta, $49,375) are 23.0 miles apart — a 1.7× income gap across local geography.
Median home values vary 3.0× across this county — from $77,500 in 51061 (Washta) to $235,400 in 51037 (Meriden).
Density varies 6× across the county — from 8 people/sq mi in 51061 (Washta) to 44 in 51012 (Cherokee).
Educational attainment ranges from 11.0% bachelor's+ in 51014 (Cleghorn) to 28.2% in 51005 (Aurelia) — the breadth of educational profiles across the area.
Within Iowa, this is the #67 most populous of 99 counties and ranks #80 for median household income .
Weighted by population, the typical household earns about $70,707 across the county — reflecting what a typical resident sees, not a simple ZIP average.
23.4% of adults age 25+ hold a bachelor's degree or higher (1,932 of 8,258 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 |
|---|---|---|---|---|---|---|
| 51012 | Cherokee | Standard | 6,311 | $69,531 | 141.9 | -0.2% |
| 51035 | Marcus | Standard | 1,627 | $79,338 | 102.6 | -7.8% |
| 51005 | Aurelia | Standard | 1,561 | $75,938 | 95.9 | 4.1% |
| 51014 | Cleghorn | Standard | 549 | $69,688 | 54.2 | 22.5% |
| 51049 | Quimby | Standard | 448 | $57,120 | 44.1 | -4.1% |
| 51061 | Washta | Standard | 389 | $49,375 | 50.3 | -44.3% |
| 51037 | Meriden | Standard | 327 | $58,958 | 28.5 | -7.9% |
| 51029 | Larrabee | Standard | 261 | $86,042 | 27.6 | -27.5% |