PlainZIP

Anthon, IA · standard

ZIP Code 51004

Woodbury County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

1,033
5/sq mi
$43,882
Median income
$114,600
Median home value
22.5%
Bachelor's or higher

The verdict

Anthon pairs one of the lowest household incomes in the country with among the most affordable home values nationally, in a rural, homeowner-dominated area.

8th pct
household income, US ZIPs
14th pct
home value, US ZIPs
5
people per sq mi
77%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51004 against every reporting US ZIP.

ZIP code 51004 is a sparsely populated ZIP (a standard USPS delivery area) in Anthon, Woodbury County, Iowa, home to just 1,033 residents across 210.8 square miles, a density of 5 people per square mile, in the Chicago time zone.

ZIP 51004 reports a modest median household income of $43,882 (43% below the Iowa average), while per-capita income is $31,532. The poverty rate stands at 11.9% and the unemployment rate at 0.9%. Housing costs here run $114,600 for a typical home value (35% below the state average), with rent averaging $1,063 a month; 76.6% of homes are owner-occupied.

Educational attainment sits below the national norm: 22.5% of adults hold a bachelor's degree or higher, the median age is 50.4, and the average commute is 27 minutes. To put 51004 in local context, 4 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Woodbury County, for a geography-aware comparison.

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 →

Top industries in ZIP 51004

Top 5 sectors by establishment count in Anthon, IA

Which industries have the most business establishments in ZIP 51004.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

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 51004, Anthon, 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

1,033

Population

210.8

Area (sq mi)

5

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 51004?

50.4

Median Age

54.1%

Male

45.9%

Female

0.0%

Foreign-Born

White 98.0%
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 1.9%
Hispanic or Latino 2.1%

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?

$43,882

Median Household Income

-43% vs state

$31,532

Per Capita Income

11.9%

Poverty Rate

0.9%

Unemployment Rate

26.5 min

Mean Commute Time

How ZIP 51004 ranks nationally

Anthon, IA household income vs. every US ZIP code

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

$43,882 8th percentile higher than 8% 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%). This entry sits in this band. $60,000–$80,000: 9,980 US ZIPs (33%). Above this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $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 50.8%
Bachelor's Degree or Higher 22.5%

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

What does housing look like?

493

Total Housing Units

423

Occupied Units

70

Vacant Units

2.03

Avg Household Size

Occupancy Type

Owner 76.6%
Renter 23.4%

$114,600

Median Home Value

-35% vs state

$1,063

Median Rent

1944

Median Year Built

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

What businesses operate in this ZIP?

Census Bureau data shows 22 business establishments in ZIP 51004, employing approximately 88 people with a combined annual payroll of $2,348,000.

22

Businesses

88

Employees

$2.3M

Annual Payroll

3

Industry Sectors

Industry Establishments % of Total
Construction 4 18.2%
Finance and insurance 4 18.2%
Retail trade 3 13.6%

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 51004 vs 51044 →

ZIP 51004 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 51004 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 51004 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 51004 ranks #5 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
51044 Oto, IA 253 5.3 mi
51056 Smithland, IA 478 9.9 mi
51016 Correctionville, IA 1,378 8.6 mi
51039 Moville, IA 2,475 9.0 mi

More ZIP Codes in Woodbury County

51106 standard
Sioux City, IA
Pop: 26,544
51104 standard
Sioux City, IA
Pop: 22,104
51103 standard
Sioux City, IA
Pop: 17,453
51105 standard
Sioux City, IA
Pop: 10,216
51108 standard
Sioux City, IA
Pop: 5,566
51054 standard
Sergeant Bluff, IA
Pop: 5,110

Related Areas

Woodbury County Anthon, IA Iowa

Frequently Asked Questions

What county is ZIP code 51004 in? ▼
ZIP code 51004 (Anthon) is located in Woodbury County, Iowa. Woodbury County contains multiple ZIP codes, see the full list at /counties/woodbury-ia.
What is the population of ZIP code 51004? ▼
ZIP code 51004 in Anthon, IA has a population of 1,033 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 51004? ▼
The median household income in ZIP 51004 is $43,882, which is 42% below the national average of $76,288.
What is the average home value in ZIP 51004? ▼
The median home value in ZIP 51004 is $114,600, which is 59% below the national average of $278,155.
What is the demographic makeup of ZIP 51004? ▼
The largest racial group in ZIP 51004 is White at 98.0%. Hispanic or Latino residents make up 2.1% of the population.
How many businesses are in ZIP code 51004? ▼
ZIP code 51004 has 22 business establishments employing approximately 88 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 51004? ▼
The top industries by establishment count in ZIP 51004 are: Construction (4), Finance and insurance (4), Retail trade (3). There are 3 industry sectors represented in total.
What is the education level in ZIP code 51004? ▼
In ZIP code 51004, 50.8% of residents aged 25+ have a high school diploma or higher, and 22.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 51004? ▼
The mean commute time for workers in ZIP code 51004 is 26.5 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 51004? ▼
In ZIP code 51004, approximately 76.6% of occupied housing units are owner-occupied and 23.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 51004? ▼
The poverty rate in ZIP code 51004 is 11.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.