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 Low-density area
- $77,708
- Median income Near-median income area
- $131,300
- Median home value Below-median home value
- 13.5%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
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 a sparsely populated ZIP (a standard USPS delivery area) in Onslow, Jones County, Iowa, home to just 404 residents across 77.7 square miles, a density of 5 people per square mile, in the Chicago time zone.
ZIP 52321 lands in the middle-income range, with a median household income of $77,708 (1% above the average Iowa ZIP), while per-capita income is $29,969. The poverty rate is 21.0%, so the area-level income figures should not be treated as typical household experience. Home values sit below the statewide ZIP benchmark: the median is $131,300 (25% below the average Iowa ZIP), and median rent is $861; owner occupancy is 80.1%.
Formal educational attainment runs low here: just 13.5% of adults hold a bachelor's degree or higher, the median age is 40.2, and the average commute is -. The page also surfaces 5 ZIP codes within roughly 10 miles and 6 more in Jones County, so 52321 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, 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; 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 ZIP avg
$29,969
Per Capita Income
21.0%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 52321 ranks among Iowa ZIPs
Onslow, IA household income vs. every Iowa ZIP code
Median household income among 911 reporting Iowa ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$77,708 Top 41% higher than 59% of 911 Iowa ZIPs
Each bar is a $20K-wide band; taller bars hold more Iowa 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?
Housing stock: occupied vs vacant
162housing units
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 ZIP avg
$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.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 52321, both outside IA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Jones County
Related Areas
Frequently Asked Questions
What county is ZIP code 52321 in?
ZIP code 52321 (Onslow) is located in Jones County, Iowa. Jones County contains multiple ZIP codes, see the full list at /counties/jones-ia.
What is the population of ZIP code 52321?
ZIP code 52321 in Onslow, IA has a population of 404 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 52321?
The median household income in ZIP 52321 is $77,708, which is 2% above the national average of $76,288.
What is the average home value in ZIP 52321?
The median home value in ZIP 52321 is $131,300, which is 53% below the national average of $278,155.
What is the demographic makeup of ZIP 52321?
The largest racial group in ZIP 52321 is White at 93.4%. Hispanic or Latino residents make up 2.0% of the population.
How many businesses are in ZIP code 52321?
ZIP code 52321 has 5 business establishments employing approximately 13 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 52321?
In ZIP code 52321, 61.5% of residents aged 25+ have a high school diploma or higher, and 13.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 52321?
In ZIP code 52321, approximately 80.1% of occupied housing units are owner-occupied and 19.9% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 52321?
The poverty rate in ZIP code 52321 is 21.0% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 52321's numbers, next.
- See how ZIP 52321 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Onslow, IA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.