ZIP code 51231: Archer, IA
51231 is a ZIP code in Archer, Iowa, mainly in O'Brien County. About 562 people live here.
- Population
- 562
- Median household income
- $108,058
- Typical home value
- $226,900+10.7% in 12 months
- Median rent
- —gross, per month
- Median age
- 15.1
- Homeowners
- 94.3%of occupied homes
Shaded: ZIP code 51231's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 51231 details
| City | Archer |
|---|---|
| State | Iowa |
| County | O'Brien County |
| Metro area | Not in a metro or micro area |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 24.2 sq mi |
| Population density | 23 people per sq mi |
| Bachelor's degree or higher | 33.5% of adults 25+ |
| Average commute | 26.1 minutes |
| Center coordinates | 43.10567, -95.74131 |
ZIP codes near 51231
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 51245 | Primghar, IA | 7.3 mi | 1,377 |
| 51238 | Hospers, IA | 7.9 mi | 1,502 |
| 51248 | Sanborn, IA | 8.0 mi | 1,534 |
| 51201 | Sheldon, IA | 8.2 mi | 6,430 |
| 51022 | Granville, IA | 10.3 mi | 960 |
| 51046 | Paullina, IA | 10.4 mi | 1,326 |
| 51232 | Ashton, IA | 13.5 mi | 658 |
| 51244 | Matlock, IA | 13.7 mi | 144 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 51231?
A typical home in ZIP code 51231 is worth about $226,900 (Zillow Home Value Index). The median household here earns $108,058 a year. See what buying here would cost per month, with Iowa average taxes and insurance filled in.
Monthly payment for a $226,900 homeWhat can a $108,058 income afford?Rental property numbers
About ZIP code 51231
What city is ZIP code 51231?
ZIP code 51231 is in Archer, IA, in O'Brien County.
What county is ZIP code 51231 in?
51231 is mainly in O'Brien County, Iowa.
What is the population of ZIP code 51231?
About 562 people live in ZIP code 51231, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 51231 in?
51231 is in Central Time (UTC−6). It observes daylight saving time.