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
$87,500
Median income
$130,800
Median home value
13.8%
Bachelor's or higher

The verdict

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 classified by USPS as a standard delivery area and covers roughly 164.8 square miles in Webb, Clay County, Iowa. The area is home to 379 residents, producing a population density of 2 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 51366 against Iowa and the nation.

On the economic side, the median household income for ZIP 51366 sits at $87,500 (14% above the Iowa average), while per-capita income is $50,048. The poverty rate stands at 2.4% and the unemployment rate at 0.0%. On housing, the median home value is $130,800 (26% below the state average) with median rent at $681 per month, and 84.6% of occupied units are owner-occupied, a direct signal of whether 51366 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 13.8% of adults hold a bachelor's degree or higher, the median age is 50.8, and the average commute is . We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Clay County, so you can benchmark 51366 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, 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; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

379

Population

164.8

Area (sq mi)

2

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 51366?

50.8

Median Age

55.5%

Male

44.5%

Female

0.0%

Foreign-Born

White 99.6%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 0.4%
Hispanic or Latino 0.0%

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

$50,048

Per Capita Income

2.4%

Poverty Rate

0.0%

Unemployment Rate

How ZIP 51366 ranks nationally

Household income vs. every US ZIP code

Median household income — the full national distribution, with this ZIP marked

$87,500 Top 29% higher than 71% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US 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?

High School Graduate or Higher 47.9%
Bachelor's Degree or Higher 13.8%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

123

Total Housing Units

104

Occupied Units

19

Vacant Units

2.36

Avg Household Size

Occupancy Type

Owner 84.6%
Renter 15.4%

$130,800

Median Home Value

-26% vs state

$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.

residents

What this shows Among its immediate neighbors, ZIP 51366 ranks #3 by population — useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 51366 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

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.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
51341 Gillett Grove, IA 49 4.1 mi
50565 Marathon, IA 468 7.0 mi
51343 Greenville, IA 238 6.3 mi
50585 Sioux Rapids, IA 1,176 7.3 mi
50515 Ayrshire, IA 279 8.1 mi

More ZIP Codes in Clay County

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.

ZIP Code Research Guides

Official Data Resources for Webb, IA

Verify and explore additional data for this area using these official government sources.