Grafton, IA · standard
ZIP Code 50440
Worth County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 422
- 5/sq mi Low-density area
- $76,429
- Median income Near-median income area
- $122,500
- Median home value Below-median home value
- 16.3%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Grafton pairs an above-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.
- Top 43%
- household income, US ZIPs
- 18th pct
- home value, US ZIPs
- 5
- people per sq mi
- 75%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 50440 against every reporting US ZIP.
ZIP code 50440 is a sparsely populated ZIP (a standard USPS delivery area) in Grafton, Worth County, Iowa, home to just 422 residents across 81.2 square miles, a density of 5 people per square mile, in the Chicago time zone.
ZIP 50440 lands in the middle-income range, with a median household income of $76,429 (0% below the average Iowa ZIP), while per-capita income is $37,745. The poverty rate is 7.5%, with unemployment at 4.1%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $122,500 (30% below the average Iowa ZIP), and median rent is $638; owner occupancy is 74.7%.
Educational attainment sits below the national norm: 16.3% of adults hold a bachelor's degree or higher, the median age is 56.2, and the average commute is -. The page also surfaces 5 ZIP codes within roughly 10 miles and 6 more in Worth County, so 50440 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 50440, Grafton, 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
422
Population
81.2
Area (sq mi)
5
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 50440?
56.2
Median Age
56.0%
Male
44.0%
Female
0.6%
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?
$76,429
Median Household Income
-0% vs state ZIP avg
$37,745
Per Capita Income
7.5%
Poverty Rate
4.1%
Unemployment Rate
How ZIP 50440 ranks among Iowa ZIPs
Grafton, 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)
$76,429 Top 43% higher than 57% 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
208housing units
208
Total Housing Units
186
Occupied Units
22
Vacant Units
1.94
Avg Household Size
Occupancy Type
$122,500
Median Home Value
-30% vs state ZIP avg
$638
Median Rent
1947
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 9 business establishments in ZIP 50440, employing approximately 25 people with a combined annual payroll of $776,000.
9
Businesses
25
Employees
$776K
Annual Payroll
1
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 3 | 33.3% |
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 50440 vs 50464 →
ZIP 50440 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 50472
Saint Ansgar (50472)
2,394 residents
- 50456
Manly (50456)
1,741 residents
- 50464 673
Plymouth (50464)
673 residents
- 50440 422
Grafton (50440)
422 residents
- 50467 94
Rock Falls (50467)
94 residents
- 50426 56
Carpenter (50426)
56 residents
What this shows Among its immediate neighbors, ZIP 50440 ranks #4 by population - useful context the national average alone can't give.
ZIP 50440 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 50472
Saint Ansgar (50472)
$93,482 median income
- 50464
Plymouth (50464)
$91,750 median income
- 50456
Manly (50456)
$81,339 median income
- 50440
Grafton (50440)
$76,429 median income
- 50426
Carpenter (50426)
$74,107 median income
- 50467
Rock Falls (50467)
$63,750 median income
What this shows By household income, ZIP 50440 ranks #4 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 50440, 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 Worth County
Related Areas
Frequently Asked Questions
What county is ZIP code 50440 in?
ZIP code 50440 (Grafton) is located in Worth County, Iowa. Worth County contains multiple ZIP codes, see the full list at /counties/worth-ia.
What is the population of ZIP code 50440?
ZIP code 50440 in Grafton, IA has a population of 422 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 50440?
The median household income in ZIP 50440 is $76,429, which is 0% above the national average of $76,288.
What is the average home value in ZIP 50440?
The median home value in ZIP 50440 is $122,500, which is 56% below the national average of $278,155.
What is the demographic makeup of ZIP 50440?
The largest racial group in ZIP 50440 is White at 96.4%. Hispanic or Latino residents make up 2.5% of the population.
How many businesses are in ZIP code 50440?
ZIP code 50440 has 9 business establishments employing approximately 25 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 50440?
In ZIP code 50440, 53.3% of residents aged 25+ have a high school diploma or higher, and 16.3% 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 50440?
In ZIP code 50440, approximately 74.7% of occupied housing units are owner-occupied and 25.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 50440?
The poverty rate in ZIP code 50440 is 7.5% 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 50440's numbers, next.
- See how ZIP 50440 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Grafton, 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.