Webb, IA · standard
ZIP Code 51366
Clay County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 379
- 2/sq mi Low-density area
- $87,500
- Median income Above-median income area
- $130,800
- Median home value Below-median home value
- 13.8%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Webb pairs an above-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.
- Top 29%
- household income, US ZIPs
- 20th pct
- home value, US ZIPs
- 2
- people per sq mi
- 85%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51366 against every reporting US ZIP.
ZIP code 51366 is a sparsely populated ZIP (a standard USPS delivery area) in Webb, Clay County, Iowa, home to just 379 residents across 164.8 square miles, a density of 2 people per square mile, in the Chicago time zone.
ZIP 51366 lands in the middle-income range, with a median household income of $87,500 (14% above the average Iowa ZIP), while per-capita income is $50,048. Both reported hardship measures are comparatively low in absolute terms: poverty is 2.4% and unemployment is 0.0%. Home values sit below the statewide ZIP benchmark: the median is $130,800 (26% below the average Iowa ZIP), and median rent is $681; owner occupancy is 84.6%.
Formal educational attainment runs low here: just 13.8% of adults hold a bachelor's degree or higher, the median age is 50.8, and the average commute is -. The page also surfaces 5 ZIP codes within roughly 10 miles and 6 more in Clay County, so 51366 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 51366, Webb, 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
379
Population
164.8
Area (sq mi)
2
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 51366?
50.8
Median Age
55.5%
Male
44.5%
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?
$87,500
Median Household Income
+14% vs state ZIP avg
$50,048
Per Capita Income
2.4%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 51366 ranks among Iowa ZIPs
Webb, 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)
$87,500 Top 24% higher than 76% 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
123housing units
123
Total Housing Units
104
Occupied Units
19
Vacant Units
2.36
Avg Household Size
Occupancy Type
$130,800
Median Home Value
-26% vs state ZIP avg
$681
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 6 business establishments in ZIP 51366, employing approximately 8 people with a combined annual payroll of $383,000.
6
Businesses
8
Employees
$383K
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 51366 vs 51341 →
ZIP 51366 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 50585
Sioux Rapids (50585)
1,176 residents
- 50565 468
Marathon (50565)
468 residents
- 51366 379
Webb (51366)
379 residents
- 50515 279
Ayrshire (50515)
279 residents
- 51343 238
Greenville (51343)
238 residents
- 51341 49
Gillett Grove (51341)
49 residents
What this shows Among its immediate neighbors, ZIP 51366 ranks #3 by population - useful context the national average alone can't give.
ZIP 51366 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51366
Webb (51366)
$87,500 median income
- 50585
Sioux Rapids (50585)
$71,346 median income
- 50515
Ayrshire (50515)
$63,333 median income
- 51343
Greenville (51343)
$60,625 median income
- 50565
Marathon (50565)
$51,875 median income
What this shows By household income, ZIP 51366 ranks the highest of 5 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 51366, 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 Clay County
Related Areas
Frequently Asked Questions
What county is ZIP code 51366 in?
ZIP code 51366 (Webb) is located in Clay County, Iowa. Clay County contains multiple ZIP codes, see the full list at /counties/clay-ia.
What is the population of ZIP code 51366?
ZIP code 51366 in Webb, IA has a population of 379 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 51366?
The median household income in ZIP 51366 is $87,500, which is 15% above the national average of $76,288.
What is the average home value in ZIP 51366?
The median home value in ZIP 51366 is $130,800, which is 53% below the national average of $278,155.
What is the demographic makeup of ZIP 51366?
The largest racial group in ZIP 51366 is White at 99.6%.
How many businesses are in ZIP code 51366?
ZIP code 51366 has 6 business establishments employing approximately 8 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 51366?
In ZIP code 51366, 47.9% of residents aged 25+ have a high school diploma or higher, and 13.8% 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 51366?
In ZIP code 51366, approximately 84.6% of occupied housing units are owner-occupied and 15.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 51366?
The poverty rate in ZIP code 51366 is 2.4% 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 51366's numbers, next.
- See how ZIP 51366 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Webb, 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.