PlainZIP

Walnut, IA · standard

ZIP Code 51577

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

1,184
6/sq mi
$71,518
Median income
$134,100
Median home value
16.8%
Bachelor's or higher

The verdict

Walnut pairs a below-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.

49th pct
household income, US ZIPs
21th pct
home value, US ZIPs
6
people per sq mi
77%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51577 against every reporting US ZIP.

ZIP code 51577 is a sparsely populated ZIP (a standard USPS delivery area) in Walnut, Pottawattamie County, Iowa, home to just 1,184 residents across 207.7 square miles, a density of 6 people per square mile, in the Chicago time zone.

ZIP 51577 lands in the middle-income range, with a median household income of $71,518 (7% below the Iowa average), while per-capita income is $31,949. Local economic indicators show a 10.1% poverty rate alongside 6.5% unemployment. On housing, the median home value is $134,100 (24% below the state average) with median rent at $874 per month, and 77.3% of occupied units are owner-occupied.

Educational attainment sits below the national norm: 16.8% of adults hold a bachelor's degree or higher, the median age is 64.9, and the average commute is -. To put 51577 in local context, 3 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Pottawattamie 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 51577

Top 5 sectors by establishment count in Walnut, IA

Which industries have the most business establishments in ZIP 51577.

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 51577, Walnut, 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

1,184

Population

207.7

Area (sq mi)

6

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 51577?

64.9

Median Age

43.8%

Male

56.2%

Female

0.7%

Foreign-Born

White 96.2%
African American 0.6%
Asian 0.0%
American Indian or Alaska Native 0.3%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 2.6%
Hispanic or Latino 2.9%

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?

$71,518

Median Household Income

-7% vs state

$31,949

Per Capita Income

10.1%

Poverty Rate

6.5%

Unemployment Rate

How ZIP 51577 ranks nationally

Walnut, IA household income vs. every US ZIP code

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

$71,518 49th percentile higher than 49% 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%). This entry sits in this band. $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 53.5%
Bachelor's Degree or Higher 16.8%

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

What does housing look like?

460

Total Housing Units

406

Occupied Units

54

Vacant Units

2.27

Avg Household Size

Occupancy Type

Owner 77.3%
Renter 22.7%

$134,100

Median Home Value

-24% vs state

$874

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 29 business establishments in ZIP 51577, employing approximately 90 people with a combined annual payroll of $3,117,000.

29

Businesses

90

Employees

$3.1M

Annual Payroll

4

Industry Sectors

Industry Establishments % of Total
Finance and insurance 7 24.1%
Other services (except public administration) 6 20.7%
Retail trade 5 17.2%
Construction 3 10.3%

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 51577 vs 51552 →

ZIP 51577 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 51577 ranks #2 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 51577 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 51577 ranks #3 of 4 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
51552 Marne, IA 301 5.1 mi
51521 Avoca, IA 2,036 7.3 mi
51531 Elk Horn, IA 914 10.6 mi

More ZIP Codes in Pottawattamie County

51503 standard
Council Bluffs, IA
Pop: 36,376
51501 standard
Council Bluffs, IA
Pop: 35,406
51510 standard
Carter Lake, IA
Pop: 3,785
51576 standard
Underwood, IA
Pop: 2,110
51560 standard
Oakland, IA
Pop: 2,099
51521 standard
Avoca, IA
Pop: 2,036

Related Areas

Pottawattamie County Walnut, IA Iowa

Frequently Asked Questions

What county is ZIP code 51577 in? ▼
ZIP code 51577 (Walnut) is located in Pottawattamie County, Iowa. Pottawattamie County contains multiple ZIP codes, see the full list at /counties/pottawattamie-ia.
What is the population of ZIP code 51577? ▼
ZIP code 51577 in Walnut, IA has a population of 1,184 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 51577? ▼
The median household income in ZIP 51577 is $71,518, which is 6% below the national average of $76,288.
What is the average home value in ZIP 51577? ▼
The median home value in ZIP 51577 is $134,100, which is 52% below the national average of $278,155.
What is the demographic makeup of ZIP 51577? ▼
The largest racial group in ZIP 51577 is White at 96.2%. Hispanic or Latino residents make up 2.9% of the population.
How many businesses are in ZIP code 51577? ▼
ZIP code 51577 has 29 business establishments employing approximately 90 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 51577? ▼
The top industries by establishment count in ZIP 51577 are: Finance and insurance (7), Other services (except public administration) (6), Retail trade (5). There are 4 industry sectors represented in total.
What is the education level in ZIP code 51577? ▼
In ZIP code 51577, 53.5% of residents aged 25+ have a high school diploma or higher, and 16.8% 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 51577? ▼
In ZIP code 51577, approximately 77.3% of occupied housing units are owner-occupied and 22.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 51577? ▼
The poverty rate in ZIP code 51577 is 10.1% 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.