ZIP code 52321: Onslow, IA
52321 is a ZIP code in Onslow, Iowa, mainly in Jones County, part of the Cedar Rapids, IA metro area. About 395 people live here.
- Population
- 395
- Median household income
- $77,708
- Typical home value
- $220,700+7.7% in 12 months
- Median rent
- $861gross, per month
- Median age
- 40.2
- Homeowners
- 80.1%of occupied homes
Shaded: ZIP code 52321's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 52321 details
| City | Onslow |
|---|---|
| State | Iowa |
| County | Jones County |
| Metro area | Cedar Rapids, IA |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 37.6 sq mi |
| Population density | 11 people per sq mi |
| Bachelor's degree or higher | 13.5% of adults 25+ |
| Average commute | 28.7 minutes |
| Center coordinates | 42.14169, -90.98309 |
ZIP codes near 52321
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 52309 | Monmouth, IA | 4.9 mi | 443 |
| 52362 | Wyoming, IA | 5.8 mi | 816 |
| 52212 | Center Junction, IA | 5.9 mi | 601 |
| 52207 | Baldwin, IA | 8.5 mi | 256 |
| 52033 | Cascade, IA | 9.6 mi | 3,292 |
| 52323 | Oxford Junction, IA | 11.0 mi | 942 |
| 52310 | Monticello, IA | 12.2 mi | 6,450 |
| 52032 | Bernard, IA | 12.6 mi | 1,305 |
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 52321?
A typical home in ZIP code 52321 is worth about $220,700 (Zillow Home Value Index). The median household here earns $77,708 a year. See what buying here would cost per month, with Iowa average taxes and insurance filled in.
Monthly payment for a $220,700 homeWhat can a $77,708 income afford?Rental property numbers
About ZIP code 52321
What city is ZIP code 52321?
ZIP code 52321 is in Onslow, IA, in Jones County.
What county is ZIP code 52321 in?
52321 is mainly in Jones County, Iowa.
What is the population of ZIP code 52321?
About 395 people live in ZIP code 52321, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 52321 in?
52321 is in Central Time (UTC−6). It observes daylight saving time.