Dedham, IA · standard
ZIP Code 51440
Carroll County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 400
- 6/sq mi Low-density area
- $87,750
- Median income Above-median income area
- $223,200
- Median home value Near-median home value
- 35.0%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Dedham pairs an above-median household income with above-median home values, in a rural, homeowner-dominated area.
- Top 29%
- household income, US ZIPs
- Top 50%
- home value, US ZIPs
- 6
- people per sq mi
- 93%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51440 against every reporting US ZIP.
ZIP code 51440 is a sparsely populated ZIP (a standard USPS delivery area) in Dedham, Carroll County, Iowa, home to just 400 residents across 65.6 square miles, a density of 6 people per square mile, in the Chicago time zone.
ZIP 51440 lands in the middle-income range, with a median household income of $87,750 (15% above the average Iowa ZIP), while per-capita income is $33,292. The poverty rate is 12.9%, with unemployment at 1.2%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $223,200 (27% above the average Iowa ZIP), while 93.0% of occupied homes are owner-occupied.
A solid share of residents have a four-year degree: 35.0% of adults hold a bachelor's degree or higher, the median age is 37.1, and the average commute is -. The page also surfaces 2 ZIP codes within roughly 10 miles and 6 more in Carroll County, so 51440 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 51440, Dedham, 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
400
Population
65.6
Area (sq mi)
6
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 51440?
37.1
Median Age
48.8%
Male
51.2%
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?
$87,750
Median Household Income
+15% vs state ZIP avg
$33,292
Per Capita Income
12.9%
Poverty Rate
1.2%
Unemployment Rate
How ZIP 51440 ranks among Iowa ZIPs
Dedham, 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)
$87,750 Top 23% higher than 77% 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
115housing units
115
Total Housing Units
115
Occupied Units
0
Vacant Units
2.90
Avg Household Size
Occupancy Type
$223,200
Median Home Value
+27% vs state ZIP avg
1969
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 51440, employing approximately 37 people with a combined annual payroll of $1,279,000.
13
Businesses
37
Employees
$1.3M
Annual Payroll
1
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 5 | 38.5% |
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 51440 vs 51463 →
ZIP 51440 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 50058
Coon Rapids (50058)
1,927 residents
- 51463 552
Templeton (51463)
552 residents
- 51440 400
Dedham (51440)
400 residents
What this shows Among its immediate neighbors, ZIP 51440 ranks #3 by population - useful context the national average alone can't give.
ZIP 51440 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51440
Dedham (51440)
$87,750 median income
- 50058
Coon Rapids (50058)
$80,119 median income
- 51463
Templeton (51463)
$78,571 median income
What this shows By household income, ZIP 51440 ranks the highest of 3 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 51440, 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 Carroll County
Related Areas
Frequently Asked Questions
What county is ZIP code 51440 in?
ZIP code 51440 (Dedham) is located in Carroll County, Iowa. Carroll County contains multiple ZIP codes, see the full list at /counties/carroll-ia.
What is the population of ZIP code 51440?
ZIP code 51440 in Dedham, IA has a population of 400 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 51440?
The median household income in ZIP 51440 is $87,750, which is 15% above the national average of $76,288.
What is the average home value in ZIP 51440?
The median home value in ZIP 51440 is $223,200, which is 20% below the national average of $278,155.
What is the demographic makeup of ZIP 51440?
The largest racial group in ZIP 51440 is White at 99.1%. Hispanic or Latino residents make up 0.6% of the population.
How many businesses are in ZIP code 51440?
ZIP code 51440 has 13 business establishments employing approximately 37 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 51440?
In ZIP code 51440, 71.1% of residents aged 25+ have a high school diploma or higher, and 35.0% 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 51440?
In ZIP code 51440, approximately 93.0% of occupied housing units are owner-occupied and 7.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 51440?
The poverty rate in ZIP code 51440 is 12.9% 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 51440's numbers, next.
- See how ZIP 51440 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Dedham, 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.