| ZIP Codes: | 10 ZIP Codes (10 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 712 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:11:52 PM |
| Population: | 14,759 [See All] |
| FIPS: | 19085 |
| CBSA: | Omaha, NE-IA |
| Land Area: | 783 sq mi |
| Water Area: | 6 sq mi |
| Coordinates: | 41.7112, -95.8465 |
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14,759 residents live across 10 ZIPs covering 783 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 15,003 to 14,759 from 2014 to 2024 — a -1.6% change. 5 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 51546 (Logan, $86,910 median) and poorest ZIP 51556 (Modale, $60,556) are 14.9 miles apart — a 1.4× income gap across local geography.
Median home values vary 2.6× across this county — from $80,000 in 51545 (Little Sioux) to $209,400 in 51563 (Persia).
Density varies 52× across the county — from 5 people/sq mi in 51556 (Modale) to 277 in 51550 (Magnolia).
Educational attainment ranges from 5.8% bachelor's+ in 51545 (Little Sioux) to 27.4% in 51557 (Mondamin) — the breadth of educational profiles across the area.
Within Iowa, this is the #51 most populous of 99 counties and ranks #48 for median household income .
Weighted by population, the typical household earns about $78,643 across the county — reflecting what a typical resident sees, not a simple ZIP average.
22.3% of adults age 25+ hold a bachelor's degree or higher (2,297 of 10,287 reporting).
10 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 |
|---|---|---|---|---|---|---|
| 51555 | Missouri Valley | Standard | 4,952 | $85,273 | 152.7 | -5.2% |
| 51546 | Logan | Standard | 3,114 | $86,910 | 131.4 | 13.6% |
| 51579 | Woodbine | Standard | 2,282 | $72,500 | 113.2 | -9.0% |
| 51529 | Dunlap | Standard | 1,732 | $61,599 | 132.7 | -5.2% |
| 51557 | Mondamin | Standard | 828 | $76,250 | 59.7 | 14.5% |
| 51563 | Persia | Standard | 629 | $69,297 | 54.1 | 1.1% |
| 51564 | Pisgah | Standard | 520 | $78,750 | 43.5 | 16.9% |
| 51545 | Little Sioux | Standard | 267 | $70,313 | 44.6 | -21.0% |
| 51556 | Modale | Standard | 266 | $60,556 | 49.9 | -37.6% |
| 51550 | Magnolia | Standard | 169 | $77,500 | 0.6 | 14.2% |