Zip code 51566: Red Oak, Iowa

Q: What city is zip code 51566?

51566 is assigned to Red Oak, Iowa. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 51566 in?

51566 is mostly in Montgomery County, but it extends into 2 other counties.

Q: What is the population of 51566?

About 7,010 people live in 51566, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 51566?

The median household income in 51566 is $56,637.

Q: What zip codes are near 51566?

The closest zip codes to 51566 are 51591, 51573, 51533, 51532, 51638.

Residential delivery areaMontgomery CountyCentral Time

Population

7,010

Median household income

$57K

U.S. $81K

Median home value

$134K

U.S. $333K

Median rent

$829/mo

U.S. $1,413

Median age

42.1

U.S. 38.9

Land area

176 sq mi

40 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 51566

51566 is a rural zip code in Red Oak, Iowa (Montgomery County), covering 176 sq mi of land. About 7,010 people live here, or 40 per square mile. The median resident is 42.1 years old, compared with 38.9 nationally.

The median household earns $56,637 a year, 30% below the national median of $80,734. 17.2% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $134,200, or 2.4 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 64% of occupied homes are lived in by their owners, and renters pay a median of $829 a month.

21% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 20.4 minutes each way, and 10% of workers work from home. The most common jobs among working residents are in production and manufacturing; construction and repair; and office and administrative support.

How 51566 compares

Sorted from highest to lowest national percentile

Income inequality (Gini)0.505
90th
WeaknessU.S. 0.483 · IA 0.44452nd of 908 in IA
Rent-burdened renters58.7%
79th
U.S. 51.1% · IA 43.9%102nd of 882 in IA
Self-employed workers12.4%
79th
U.S. 10% · IA 10.2%518th of 911 in IA
Poverty rate17.2%
77th
U.S. 12.5% · IA 11.1%115th of 909 in IA
Residents 65 and older20.7%
77th
U.S. 17.2% · IA 18.1%427th of 911 in IA
Median age42.1
72nd
U.S. 38.9 · IA 38.6482nd of 911 in IA
Veterans7.1%
67th
U.S. 6.2% · IA 6.5%420th of 911 in IA
Housing vacancy8.9%
66th
U.S. 10.1% · IA 8.5%463rd of 909 in IA
Residents under 1823.6%
64th
U.S. 22% · IA 22.9%431st of 911 in IA
Government workers13.4%
48th
U.S. 14.5% · IA 14.5%436th of 911 in IA
Per capita income$37,850
43rd
U.S. $44,673 · IA $40,877481st of 911 in IA
Homeownership rate63.7%
39th
U.S. 65.2% · IA 71.7%857th of 909 in IA
Median earnings per worker$44,073
37th
U.S. $49,666 · IA $47,712605th of 910 in IA
Work from home10%
34th
U.S. 15.1% · IA 11.3%383rd of 911 in IA
Tech workers1.6%
25th
U.S. 3.8% · IA 2.9%287th of 911 in IA
Bachelor's degree or higher20.9%
23rd
U.S. 35.7% · IA 31.4%457th of 911 in IA
Unemployment rate3.2%
19th
StrengthU.S. 5.2% · IA 3.6%309th of 911 in IA
Uninsured rate3.7%
19th
StrengthU.S. 8.4% · IA 5%445th of 911 in IA
Median household income$56,637
16th
WeaknessU.S. $80,734 · IA $75,059802nd of 896 in IA
Average commute20.4 min
14th
StrengthU.S. 26.4 min · IA 19.8 min604th of 902 in IA
Foreign-born residents2.2%
13th
U.S. 14.1% · IA 5.9%307th of 911 in IA
Population7,010
11th
U.S. 334,922,499 · IA 3,210,507111th of 911 in IA
Broadband access84.6%
11th
WeaknessU.S. 91% · IA 88.9%668th of 909 in IA
Diversity index17.5
10th
U.S. 61.4 · IA 31.4318th of 911 in IA
Healthcare workers6.4%
10th
U.S. 9.7% · IA 9.2%644th of 911 in IA
Median gross rent$829
9th
U.S. $1,413 · IA $972382nd of 771 in IA
Median home value$134,200
7th
U.S. $332,700 · IA $208,000596th of 881 in IA
Population density40/sq mi
6th
U.S. 95/sq mi · IA 58/sq mi276th of 911 in IA

Measure	51566	Montgomery	IA	U.S.	National percentile	Rank in IA
Income inequality (Gini)Weakness	0.505	0.472	0.444	0.483	90th	52nd of 908
Rent-burdened renters	58.7%	53.3%	43.9%	51.1%	79th	102nd of 882
Self-employed workers	12.4%	15.3%	10.2%	10%	79th	518th of 911
Poverty rate	17.2%	15.3%	11.1%	12.5%	77th	115th of 909
Residents 65 and older	20.7%	23.1%	18.1%	17.2%	77th	427th of 911
Median age	42.1	43.5	38.6	38.9	72nd	482nd of 911
Veterans	7.1%	7%	6.5%	6.2%	67th	420th of 911
Housing vacancy	8.9%	8.4%	8.5%	10.1%	66th	463rd of 909
Residents under 18	23.6%	22.6%	22.9%	22%	64th	431st of 911
Government workers	13.4%	14.1%	14.5%	14.5%	48th	436th of 911
Per capita income	$37,850	$37,894	$40,877	$44,673	43rd	481st of 911
Homeownership rate	63.7%	69.1%	71.7%	65.2%	39th	857th of 909
Median earnings per worker	$44,073	$45,741	$47,712	$49,666	37th	605th of 910
Work from home	10%	10%	11.3%	15.1%	34th	383rd of 911
Tech workers	1.6%	1.8%	2.9%	3.8%	25th	287th of 911
Bachelor's degree or higher	20.9%	20.4%	31.4%	35.7%	23rd	457th of 911
Unemployment rateStrength	3.2%	2.6%	3.6%	5.2%	19th	309th of 911
Uninsured rateStrength	3.7%	3.7%	5%	8.4%	19th	445th of 911
Median household incomeWeakness	$56,637	$63,666	$75,059	$80,734	16th	802nd of 896
Average commuteStrength	20.4 min	22.3 min	19.8 min	26.4 min	14th	604th of 902
Foreign-born residents	2.2%	1.6%	5.9%	14.1%	13th	307th of 911
Population	7,010	10,214	3,210,507	334,922,499	11th	111th of 911
Broadband accessWeakness	84.6%	85.9%	88.9%	91%	11th	668th of 909
Diversity index	17.5	15.3	31.4	61.4	10th	318th of 911
Healthcare workers	6.4%	7.2%	9.2%	9.7%	10th	644th of 911
Median gross rent	$829	$814	$972	$1,413	9th	382nd of 771
Median home value	$134,200	$121,400	$208,000	$332,700	7th	596th of 881
Population density	40/sq mi	24/sq mi	58/sq mi	95/sq mi	6th	276th of 911

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

18%

5–17

18–24

10%

25–34

12%

35–44

13%

45–54

13%

55–64

11%

65–74

10%

75+

Median age

42.1

Under 18

23.6%

65 and over

20.7%

Race and ethnicity

White91%
Black2%
Hispanic0.5%
Asian2%
Native American0.1%
Pacific Islander0.5%
Other0.4%
Multiracial4%

Diversity index

17.5

U.S. 61.4

Foreign-born

2.2%

U.S. 14.1%

Born in state

67.4%

Language spoken at home (households)

English only

96%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 3,128
Average household size: 2.2
Family households: 60.3%
Married couples: 41.7%
Living alone: 31.6%
Veterans (of adults): 7.1%
Male / female: 50% / 50%

Income and poverty

Household income distribution

<$25k

23%

$25–50k

21%

$50–75k

15%

$75–100k

14%

$100–150k

13%

$150–200k

10%

$200k+

Median household income

51566

$56,637

Montgomery Co.

$63,666

Iowa

$75,059

United States

$80,734

Per capita income

$37,850

U.S. $44,673

Poverty rate

17.2%

U.S. 12.5%

Households earning $150K+

14%

U.S. 23%

Income inequality (Gini)

0.505

U.S. 0.483

Housing

Median home value

51566

$134,200

Montgomery Co.

$121,400

Iowa

$208,000

United States

$332,700

Median gross rent

51566

$829

Montgomery Co.

$814

Iowa

$972

United States

$1,413

Types of housing

Single-family

81%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 3,432
Owner-occupied: 63.7%
Vacant: 8.9%
Median year built: 1962
Median rooms: 5.8
Renters paying 30%+ of income: 58.7%
Renters paying 50%+ of income: 39.5%
Home value to income: 2.4× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

77%

Carpooled

12%

Transit

Walked

Bicycle

Worked from home

10%

Other

Commute time (one way)

<10 min

40%

10–19

28%

20–29

30–44

10%

45–59

60+

15%

Average commute

20.4 min

U.S. 26.4 min

Unemployment

3.2%

U.S. 5.2%

In labor force

58.2%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Production

13%

Construction and repair

12%

Office and admin

11%

Transportation and moving

10%

Sales

10%

Healthcare

Cleaning and personal care

Education

Management

Business and finance

Food service

Arts, media and sports

Engineering and science

Farming, fishing and forestry

Computer and math

Legal and social services

Police and fire

0.8%

Industries

Manufacturing

17%

Health care and social assistance

15%

Retail

15%

Construction

Agriculture and mining

Education

Transportation, warehousing and utilities

Other services

Finance, insurance and real estate

Restaurants and hotels

Public administration

Wholesale

Arts and recreation

Professional and technical services

Admin, support and management

Information

Median earnings per worker

$44,073

U.S. $49,666

Self-employed

12.4%

U.S. 10%

Government workers

13.4%

U.S. 14.5%

Nonprofit workers

9.3%

U.S. 8.8%

Median earnings by type of work

Type of work	51566	U.S.
Management, business, science and arts	$57,128	$74,888
Service	$26,667	$26,804
Sales and office	$34,085	$40,476
Construction and maintenance	$57,639	$49,199
Production and transportation	$44,340	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

10%

High school

39%

Some college

18%

Associate's

12%

Bachelor's

15%

Graduate

High school graduate or higher: 90%
Bachelor's degree or higher: 20.9%
Graduate or professional degree: 6%
Households with broadband: 84.6%
Cable, fiber or DSL: 62%
No internet access: 11.9%
Without health insurance: 3.7%
Limited-English households: 0%

Geography

City (USPS): Red Oak
State: Iowa
County: Montgomery County
Center point: 41.0151° N, 95.2297° W
Land area: 176 sq mi
Water area: 0.6 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

51566 spans 3 counties

Montgomery County91% of land
Page County7% of land
Pottawattamie County2% of land

Cities and towns within this zip

Red Oak2% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 51566

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
51591	Red Oak, IA · PO box	4 mi	—	—	—
51573	Stanton, IA	7.5 mi	979	$86,438	$133,800
51533	Emerson, IA	7.9 mi	844	$68,750	$136,500
51532	Elliott, IA	11 mi	644	$65,375	$99,400
51638	Essex, IA	12 mi	1,258	$59,107	$120,700
51541	Henderson, IA	13 mi	273	$91,875	$163,600
50864	Villisca, IA	14 mi	1,662	$69,861	$109,900
51645	Imogene, IA	14 mi	419	$217,898	—
51540	Hastings, IA	14 mi	372	$84,375	$217,700
50847	Grant, IA	16 mi	35	$68,125	$40,000
51535	Griswold, IA	16 mi	1,697	$76,371	$152,300
51549	Macedonia, IA	17 mi	363	$72,500	$161,900

Zip codes like 51566 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 51566

What city is zip code 51566?

51566 is assigned to Red Oak, Iowa. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 51566 in?

51566 is mostly in Montgomery County, but it extends into 2 other counties.

What is the population of 51566?

About 7,010 people live in 51566, according to the Census Bureau's American Community Survey.

What time zone is 51566 in?

51566 is in Central Time.

What is the median household income in 51566?

The median household income in 51566 is $56,637.

What zip codes are near 51566?

The closest zip codes to 51566 are 51591, 51573, 51533, 51532, 51638.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 51566, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.