| ZIP Codes: | 13 ZIP Codes (11 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 319 / 641 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:11:55 PM |
| Population: | 17,167 [See All] |
| FIPS: | 19171 |
| Land Area: | 754 sq mi |
| Water Area: | 1 sq mi |
| Coordinates: | 42.0882, -92.5147 |
| Quick Link: |
17,167 residents live across 13 ZIPs covering 754 sq mi, served by 13 distinct USPS-recognized cities.
Population moved from 17,720 to 17,167 from 2014 to 2024 — a -3.1% change. 7 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 50612 (Buckingham, $99,602 median) and poorest ZIP 52342 (Toledo, $57,813) are 17.8 miles apart — a 1.7× income gap across local geography.
Median home values vary 3.2× across this county — from $92,100 in 52217 (Clutier) to $291,900 in 50612 (Buckingham).
Density varies 30× across the county — from 10 people/sq mi in 52217 (Clutier) to 303 in 50652 (Lincoln).
Educational attainment ranges from 4.1% bachelor's+ in 52225 (Elberon) to 31.3% in 50635 (Gladbrook) — the breadth of educational profiles across the area.
Within Iowa, this is the #41 most populous of 99 counties and ranks #46 for median household income .
Weighted by population, the typical household earns about $70,770 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 (2,389 of 11,753 reporting).
11 Standard delivery, 2 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 |
|---|---|---|---|---|---|---|
| 52339 | Tama | Standard | 4,326 | $67,612 | 97.6 | -2.5% |
| 52342 | Toledo | Standard | 2,705 | $57,813 | 85.5 | -6.2% |
| 50675 | Traer | Standard | 2,198 | $75,938 | 110.0 | -14.1% |
| 52224 | Dysart | Standard | 2,141 | $69,805 | 98.3 | 0.7% |
| 50635 | Gladbrook | Standard | 1,423 | $81,125 | 82.3 | -16.5% |
| 50632 | Garwin | Standard | 1,201 | $71,667 | 43.1 | 11.6% |
| 52215 | Chelsea | Standard | 960 | $61,932 | 82.8 | 36.0% |
| 50173 | Montour | Standard | 705 | $96,250 | 32.8 | -19.2% |
| 52217 | Clutier | Standard | 573 | $83,750 | 55.9 | 8.1% |
| 52225 | Elberon | Standard | 387 | $61,944 | 37.3 | 23.2% |
| 50612 | Buckingham | Standard | 369 | $99,602 | 28.3 | 7.0% |
| 50652 | Lincoln | PO Box | 113 | $65,000 | 0.4 | 25.6% |
| 52348 | Vining | PO Box | 66 | $72,500 | 0.4 | -10.8% |