Portsmouth, IA · standard
ZIP Code 51565
Shelby County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 501
- 4/sq mi Low-density area
- $103,257
- Median income Above-median income area
- $182,100
- Median home value Near-median home value
- 18.5%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Portsmouth pairs an upper-quartile household income with below-median home values, in a rural, homeowner-dominated area.
- Top 17%
- household income, US ZIPs
- 38th pct
- home value, US ZIPs
- 4
- people per sq mi
- 64%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51565 against every reporting US ZIP.
ZIP code 51565 is a sparsely populated ZIP (a standard USPS delivery area) in Portsmouth, Shelby County, Iowa, home to just 501 residents across 125.3 square miles, a density of 4 people per square mile, in the Chicago time zone.
ZIP 51565 lands in the middle-income range, with a median household income of $103,257 (35% above the average Iowa ZIP), while per-capita income is $45,433. The poverty rate is 8.3%, with unemployment at 0.0%; those measures add context to the income figure. Median home value is $182,100 (4% above the average Iowa ZIP) and median rent is $833; 64.0% of occupied homes are owner-occupied.
Educational attainment sits below the national norm: 18.5% of adults hold a bachelor's degree or higher, the median age is 54.6, and the average commute is -. The page also surfaces 5 ZIP codes within roughly 10 miles and 6 more in Shelby County, so 51565 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 51565, Portsmouth, 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
501
Population
125.3
Area (sq mi)
4
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 51565?
54.6
Median Age
45.7%
Male
54.3%
Female
0.2%
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?
$103,257
Median Household Income
+35% vs state ZIP avg
$45,433
Per Capita Income
8.3%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 51565 ranks among Iowa ZIPs
Portsmouth, 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)
$103,257 Top 10% higher than 90% 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
279housing units
279
Total Housing Units
275
Occupied Units
4
Vacant Units
1.88
Avg Household Size
Occupancy Type
$182,100
Median Home Value
+4% vs state ZIP avg
$833
Median Rent
1938
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 13 business establishments in ZIP 51565, employing approximately 36 people with a combined annual payroll of $2,136,000.
13
Businesses
36
Employees
$2.1M
Annual Payroll
2
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 3 | 23.1% |
| Wholesale trade | 3 | 23.1% |
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 51565 vs 51562 →
ZIP 51565 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51570
Shelby (51570)
1,039 residents
- 51530
Earling (51530)
854 residents
- 51563
Persia (51563)
779 residents
- 51565
Portsmouth (51565)
501 residents
- 51562
Panama (51562)
449 residents
- 51578 79
Westphalia (51578)
79 residents
What this shows Among its immediate neighbors, ZIP 51565 ranks #4 by population - useful context the national average alone can't give.
ZIP 51565 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51565
Portsmouth (51565)
$103,257 median income
- 51562
Panama (51562)
$81,250 median income
- 51570
Shelby (51570)
$77,708 median income
- 51578
Westphalia (51578)
$77,292 median income
- 51530
Earling (51530)
$73,750 median income
- 51563
Persia (51563)
$69,297 median income
What this shows By household income, ZIP 51565 ranks the highest 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 51565, 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 Shelby County
Related Areas
Frequently Asked Questions
What county is ZIP code 51565 in?
ZIP code 51565 (Portsmouth) is located in Shelby County, Iowa. Shelby County contains multiple ZIP codes, see the full list at /counties/shelby-ia.
What is the population of ZIP code 51565?
ZIP code 51565 in Portsmouth, IA has a population of 501 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 51565?
The median household income in ZIP 51565 is $103,257, which is 35% above the national average of $76,288.
What is the average home value in ZIP 51565?
The median home value in ZIP 51565 is $182,100, which is 35% below the national average of $278,155.
What is the demographic makeup of ZIP 51565?
The largest racial group in ZIP 51565 is White at 94.2%. Hispanic or Latino residents make up 3.3% of the population.
How many businesses are in ZIP code 51565?
ZIP code 51565 has 13 business establishments employing approximately 36 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 51565?
In ZIP code 51565, 70.8% of residents aged 25+ have a high school diploma or higher, and 18.5% 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 51565?
In ZIP code 51565, approximately 64.0% of occupied housing units are owner-occupied and 36.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 51565?
The poverty rate in ZIP code 51565 is 8.3% 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 51565's numbers, next.
- See how ZIP 51565 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Portsmouth, 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.