| ZIP Codes: | 10 ZIP Codes (10 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 515 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:53:10 PM |
| Population: | 9,264 [See All] |
| FIPS: | 19091 |
| Land Area: | 432 sq mi |
| Water Area: | 1 sq mi |
| Coordinates: | 42.8024, -94.2020 |
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9,264 residents live across 10 ZIPs covering 432 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 9,481 to 9,264 from 2014 to 2024 — a -2.3% change. 2 ZIPs gained residents, 8 lost.
The county's wealthiest ZIP 50582 (Rutland, $87,125 median) and poorest ZIP 50545 (Hardy, $31,429) are 10.3 miles apart — a 2.8× income gap across local geography.
Median home values vary 4.6× across this county — from $44,300 in 50520 (Bradgate) to $202,000 in 50570 (Ottosen).
Density varies 297× across the county — from 4 people/sq mi in 50545 (Hardy) to 1,085 in 50529 (Dakota City).
Educational attainment ranges from 4.9% bachelor's+ in 50582 (Rutland) to 28.8% in 50570 (Ottosen) — the breadth of educational profiles across the area.
Within Iowa, this is the #78 most populous of 99 counties and ranks #84 for median household income .
Weighted by population, the typical household earns about $72,636 across the county — reflecting what a typical resident sees, not a simple ZIP average.
20.5% of adults age 25+ hold a bachelor's degree or higher (1,306 of 6,379 reporting).
10 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 |
|---|---|---|---|---|---|---|
| 50548 | Humboldt | Standard | 5,722 | $76,214 | 121.5 | -0.5% |
| 50519 | Bode | Standard | 765 | $72,083 | 53.9 | 16.4% |
| 50529 | Dakota City | Standard | 752 | $60,417 | 0.7 | -1.6% |
| 50558 | Livermore | Standard | 653 | $68,750 | 47.3 | -4.4% |
| 50591 | Thor | Standard | 405 | $75,000 | 32.6 | 54.0% |
| 50577 | Renwick | Standard | 341 | $57,500 | 35.9 | -22.5% |
| 50570 | Ottosen | Standard | 203 | $67,813 | 49.3 | -10.2% |
| 50582 | Rutland | Standard | 170 | $87,125 | 22.0 | -7.1% |
| 50545 | Hardy | Standard | 139 | $31,429 | 38.0 | -60.8% |
| 50520 | Bradgate | Standard | 114 | $73,750 | 30.4 | -29.2% |