Onslow, IA · standard
ZIP Code 52321
Jones County, Iowa — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 404
- 5/sq mi
- $77,708
- Median income
- $131,300
- Median home value
- 13.5%
- Bachelor's or higher
The verdict
Onslow pairs an above-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.
- Top 41%
- household income, US ZIPs
- 20th pct
- home value, US ZIPs
- 5
- people per sq mi
- 80%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 52321 against every reporting US ZIP.
ZIP code 52321 is classified by USPS as a standard delivery area and covers roughly 77.7 square miles in Onslow, Jones County, Iowa. The area is home to 404 residents, producing a population density of 5 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 52321 against Iowa and the nation.
On the economic side, the median household income for ZIP 52321 sits at $77,708 (1% above the Iowa average), while per-capita income is $29,969. The poverty rate stands at 21.0% and the unemployment rate at 0.0%. On housing, the median home value is $131,300 (25% below the state average) with median rent at $861 per month, and 80.1% of occupied units are owner-occupied, a direct signal of whether 52321 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 13.5% of adults hold a bachelor's degree or higher, the median age is 40.2, and the average commute is —. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Jones County, so you can benchmark 52321 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 52321, Onslow, IA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
404
Population
77.7
Area (sq mi)
5
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 52321?
40.2
Median Age
58.0%
Male
42.0%
Female
0.0%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$77,708
Median Household Income
+1% vs state
$29,969
Per Capita Income
21.0%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 52321 ranks nationally
Household income vs. every US ZIP code
Median household income — the full national distribution, with this ZIP marked
$77,708 Top 41% higher than 59% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
162
Total Housing Units
146
Occupied Units
16
Vacant Units
2.71
Avg Household Size
Occupancy Type
$131,300
Median Home Value
-25% vs state
$861
Median Rent
1956
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 5 business establishments in ZIP 52321, employing approximately 13 people with a combined annual payroll of $2,068,000.
5
Businesses
13
Employees
$2.1M
Annual Payroll
0
Industry Sectors
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 52321 vs 52362 →
ZIP 52321 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 52033
Cascade (52033)
3,202 residents
- 52032
Bernard (52032)
1,456 residents
- 52362 1,041
Wyoming (52362)
1,041 residents
- 52321 404
Onslow (52321)
404 residents
- 52309 397
Monmouth (52309)
397 residents
- 52212 285
Center Junction (52212)
285 residents
What this shows Among its immediate neighbors, ZIP 52321 ranks #4 by population — useful context the national average alone can't give.
ZIP 52321 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 52212
Center Junction (52212)
$110,461 median income
- 52032
Bernard (52032)
$88,500 median income
- 52321
Onslow (52321)
$77,708 median income
- 52362
Wyoming (52362)
$72,583 median income
- 52033
Cascade (52033)
$69,023 median income
- 52309
Monmouth (52309)
$56,250 median income
What this shows By household income, ZIP 52321 ranks #3 of 6 neighboring ZIPs — local affluence varies block to block, not just metro to metro.
More ZIP Codes in Jones County
Related Areas
Frequently Asked Questions
What county is ZIP code 52321 in? ▼
What is the population of ZIP code 52321? ▼
What is the median household income in ZIP 52321? ▼
What is the average home value in ZIP 52321? ▼
What is the demographic makeup of ZIP 52321? ▼
How many businesses are in ZIP code 52321? ▼
What is the education level in ZIP code 52321? ▼
What percentage of residents own vs. rent in ZIP 52321? ▼
What is the poverty rate in ZIP code 52321? ▼
ZIP Code Research Guides
Official Data Resources for Onslow, IA
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.