ZIP Code 52321 is located in Onslow Iowa. Portions of 52321 are also in Clay Township (Jones County) and Madison Township (Jones County) and Wyoming Township and Scotch Grove Township. 52321 is entirely within Jones County. Regionally, it is located in the Cedar Rapids-Waterloo-Iowa City and Dubuque Area.
| ZIP Code Name | Onslow |
| Primary County | Jones County |
| ZIP Code Type | Standard |
| Population (2022) | 458 |
| Area Code(s) | 563 |
| Current Time | CDT |
52321 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Iowa based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 52321 is White. The current unemployment level in 52321 is 3.1%.
| Population | 458 |
| Population Growth Rate | 12.18% |
| Population Density | 15 People per Square Mile |
| Total Households | 220 |
| Median Household Income (2021) | $55,893 |
| Average Adjusted Gross Income (2020) | $50,670 |
| Current Unemployment Rate (March 2024) | 3.1% |
| Majority Race/Ethnicty | White - 93.52% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 462 | 93.52% |
| Black | 22 | 4.45% |
| Hispanic | 6 | 1.21% |
| Asian | 0 | 0% |
| Native American | 4 | 0.81% |
| Hawaiian/Pac. Islander | 0 | 0% |
| Highest Education Level Attained | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 57 | 17.48% |
| Bachelor Degree | 58 | 17.79% |
| High School Diploma | 121 | 37.12% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 8 | 2.45% |
| 1 or More Years of College | 30 | 9.2% |
| Associates Degree | 52 | 15.95% |
| Masters Degree | 0 | 0% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |
| Coordinates | 42.14281464,-90.97335815 |
| Adjacent ZIP Codes | |
| Cities/Towns in 52321 | |
| Region | Cedar Rapids-Waterloo-Iowa City and Dubuque Area |
| Metropolitan/Micropolitan Stat Area | Cedar Rapids, IA |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 30 Square Miles |
| US Congressional Districts in 52321 | |
| Iowa State Senate Districts in 52321 | |
| Iowa State House of Representatives Districts in 52321 |
| School Districts in 52321 |
| Plant Hardiness Zone | Zone 5a: -20F to -15F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | May 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 47f - Rolling Loess Prairies | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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