| ZIP Codes: | 6 ZIP Codes (5 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Code: | 712 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:53:08 PM |
| Population: | 5,310 [See All] |
| FIPS: | 19009 |
| Land Area: | 397 sq mi |
| Water Area: | 0 sq mi |
| Coordinates: | 41.6733, -94.9408 |
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5,310 residents live across 6 ZIPs covering 397 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 5,631 to 5,281 from 2014 to 2024 — a -6.2% change. 1 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 50117 (Hamlin, $104,167 median) and poorest ZIP 50025 (Audubon, $52,438) are 5.0 miles apart — a 2.0× income gap across local geography.
Median home values vary 2.0× across this county — from $114,100 in 50076 (Exira) to $222,700 in 50117 (Hamlin).
Density varies 4× across the county — from 5 people/sq mi in 50117 (Hamlin) to 22 in 51543 (Kimballton).
Educational attainment ranges from 9.0% bachelor's+ in 51543 (Kimballton) to 23.7% in 50025 (Audubon) — the breadth of educational profiles across the area.
Within Iowa, this is the #97 most populous of 99 counties and ranks #55 for median household income .
Weighted by population, the typical household earns about $57,889 across the county — reflecting what a typical resident sees, not a simple ZIP average.
20.1% of adults age 25+ hold a bachelor's degree or higher (776 of 3,868 reporting).
5 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.
Audubon County lost 5.7% of residents between 2014 and 2024. ZIPs that shed the largest share: