Zip code 52231: Harper, Iowa

Q: What city is zip code 52231?

52231 is assigned to Harper, Iowa. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 52231 in?

52231 is in Keokuk County, Iowa.

Q: What is the population of 52231?

About 539 people live in 52231, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 52231?

The median household income in 52231 is $90,893.

Q: What zip codes are near 52231?

The closest zip codes to 52231 are 52248, 52335, 52591, 52355, 52576.

Residential delivery areaKeokuk CountyCentral Time

Population

539

Median household income

$91K

U.S. $81K

Median home value

$242K

U.S. $333K

Median rent

$1,125/mo

U.S. $1,413

Median age

39.3

U.S. 38.9

Land area

35 sq mi

16 people/sq mi

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

About 52231

52231 is a rural zip code in Harper, Iowa (Keokuk County), covering 35 sq mi of land. About 539 people live here, or 16 per square mile. The median resident is 39.3 years old, compared with 38.9 nationally.

The median household earns $90,893 a year, close to the national median of $80,734. 2.2% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $242,400, or 2.7 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 96% of occupied homes are lived in by their owners, and renters pay a median of $1,125 a month.

17% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 19.4 minutes each way, and 5% of workers work from home. The most common jobs among working residents are in construction and repair; sales; and office and administrative support.

How 52231 compares

Sorted from highest to lowest national percentile

Homeownership rate96.4%
99th
StrengthU.S. 65.2% · IA 71.7%43rd of 909 in IA
Residents under 1832.7%
98th
U.S. 22% · IA 22.9%58th of 911 in IA
Government workers23.5%
92nd
U.S. 14.5% · IA 14.5%64th of 911 in IA
Residents 65 and older21.3%
80th
U.S. 17.2% · IA 18.1%391st of 911 in IA
Veterans6.9%
65th
U.S. 6.2% · IA 6.5%442nd of 911 in IA
Median household income$90,893
63rd
U.S. $80,734 · IA $75,059184th of 896 in IA
Median age39.3
52nd
U.S. 38.9 · IA 38.6635th of 911 in IA
Median earnings per worker$45,977
43rd
U.S. $49,666 · IA $47,712533rd of 910 in IA
Per capita income$36,397
39th
U.S. $44,673 · IA $40,877558th of 911 in IA
Healthcare workers8.5%
35th
U.S. 9.7% · IA 9.2%444th of 911 in IA
Median home value$242,400
31st
U.S. $332,700 · IA $208,000147th of 881 in IA
Median gross rent$1,125
30th
U.S. $1,413 · IA $97273rd of 771 in IA
Income inequality (Gini)0.399
20th
StrengthU.S. 0.483 · IA 0.444437th of 908 in IA
Rent-burdened renters40%
16th
StrengthU.S. 51.1% · IA 43.9%338th of 882 in IA
Unemployment rate2.8%
14th
StrengthU.S. 5.2% · IA 3.6%363rd of 911 in IA
Bachelor's degree or higher16.5%
13th
WeaknessU.S. 35.7% · IA 31.4%654th of 911 in IA
Average commute19.4 min
10th
StrengthU.S. 26.4 min · IA 19.8 min666th of 902 in IA
Diversity index17.3
10th
U.S. 61.4 · IA 31.4320th of 911 in IA
Work from home5.2%
8th
U.S. 15.1% · IA 11.3%676th of 911 in IA
Broadband access77.2%
3rd
WeaknessU.S. 91% · IA 88.9%838th of 909 in IA
Population density16/sq mi
2nd
U.S. 95/sq mi · IA 58/sq mi588th of 911 in IA
Population539
1st
U.S. 334,922,499 · IA 3,210,507660th of 911 in IA
Poverty rate2.2%
1st
StrengthU.S. 12.5% · IA 11.1%841st of 909 in IA
Uninsured rate0%
1st
StrengthU.S. 8.4% · IA 5%890th of 911 in IA
Foreign-born residents0%
1st
U.S. 14.1% · IA 5.9%817th of 911 in IA
Housing vacancy0%
1st
U.S. 10.1% · IA 8.5%890th of 909 in IA
Tech workers0%
1st
U.S. 3.8% · IA 2.9%776th of 911 in IA
Self-employed workers3.2%
1st
U.S. 10% · IA 10.2%880th of 911 in IA

Measure	52231	Keokuk	IA	U.S.	National percentile	Rank in IA
Homeownership rateStrength	96.4%	81.3%	71.7%	65.2%	99th	43rd of 909
Residents under 18	32.7%	22.4%	22.9%	22%	98th	58th of 911
Government workers	23.5%	16%	14.5%	14.5%	92nd	64th of 911
Residents 65 and older	21.3%	22.5%	18.1%	17.2%	80th	391st of 911
Veterans	6.9%	6.5%	6.5%	6.2%	65th	442nd of 911
Median household income	$90,893	$62,329	$75,059	$80,734	63rd	184th of 896
Median age	39.3	43.4	38.6	38.9	52nd	635th of 911
Median earnings per worker	$45,977	$45,100	$47,712	$49,666	43rd	533rd of 910
Per capita income	$36,397	$35,153	$40,877	$44,673	39th	558th of 911
Healthcare workers	8.5%	10.3%	9.2%	9.7%	35th	444th of 911
Median home value	$242,400	$118,700	$208,000	$332,700	31st	147th of 881
Median gross rent	$1,125	$828	$972	$1,413	30th	73rd of 771
Income inequality (Gini)Strength	0.399	0.441	0.444	0.483	20th	437th of 908
Rent-burdened rentersStrength	40%	37.8%	43.9%	51.1%	16th	338th of 882
Unemployment rateStrength	2.8%	4.5%	3.6%	5.2%	14th	363rd of 911
Bachelor's degree or higherWeakness	16.5%	17%	31.4%	35.7%	13th	654th of 911
Average commuteStrength	19.4 min	26.5 min	19.8 min	26.4 min	10th	666th of 902
Diversity index	17.3	10.4	31.4	61.4	10th	320th of 911
Work from home	5.2%	9.5%	11.3%	15.1%	8th	676th of 911
Broadband accessWeakness	77.2%	83.8%	88.9%	91%	3rd	838th of 909
Population density	16/sq mi	17/sq mi	58/sq mi	95/sq mi	2nd	588th of 911
Population	539	9,924	3,210,507	334,922,499	1st	660th of 911
Poverty rateStrength	2.2%	12.1%	11.1%	12.5%	1st	841st of 909
Uninsured rateStrength	0%	4%	5%	8.4%	1st	890th of 911
Foreign-born residents	0%	1%	5.9%	14.1%	1st	817th of 911
Housing vacancy	0%	12.5%	8.5%	10.1%	1st	890th of 909
Tech workers	0%	1.2%	2.9%	3.8%	1st	776th of 911
Self-employed workers	3.2%	14.6%	10.2%	10%	1st	880th 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

29%

5–17

18–24

25–34

15%

35–44

13%

45–54

55–64

21%

65–74

75+

Median age

39.3

Under 18

32.7%

65 and over

21.3%

Race and ethnicity

White91%
Black0%
Hispanic9%
Asian0%
Native American0%
Pacific Islander0%
Other0%
Multiracial0.9%

Diversity index

17.3

U.S. 61.4

Foreign-born

U.S. 14.1%

Born in state

73.3%

Language spoken at home (households)

English only

100%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 197
Average household size: 2.7
Family households: 80.2%
Married couples: 77.7%
Living alone: 19.8%
Veterans (of adults): 6.9%
Male / female: 59% / 41%

Income and poverty

Household income distribution

<$25k

11%

$25–50k

14%

$50–75k

21%

$75–100k

$100–150k

40%

$150–200k

$200k+

Median household income

52231

$90,893

Keokuk Co.

$62,329

Iowa

$75,059

United States

$80,734

Per capita income

$36,397

U.S. $44,673

Poverty rate

2.2%

U.S. 12.5%

Households earning $150K+

6.1%

U.S. 23%

Income inequality (Gini)

0.399

U.S. 0.483

Housing

Median home value

52231

$242,400

Keokuk Co.

$118,700

Iowa

$208,000

United States

$332,700

Median gross rent

52231

$1,125

Keokuk Co.

$828

Iowa

$972

United States

$1,413

Types of housing

Single-family

100%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 197
Owner-occupied: 96.4%
Vacant: 0%
Median year built: 1962
Median rooms: 6.8
Renters paying 30%+ of income: 40%
Renters paying 50%+ of income: 40%
Home value to income: 2.7× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

93%

Carpooled

0.5%

Transit

Walked

Bicycle

Worked from home

Other

Commute time (one way)

<10 min

32%

10–19

29%

20–29

13%

30–44

13%

45–59

60+

Average commute

19.4 min

U.S. 26.4 min

Unemployment

2.8%

U.S. 5.2%

In labor force

68.6%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Construction and repair

25%

Sales

13%

Office and admin

12%

Farming, fishing and forestry

11%

Management

10%

Healthcare

Cleaning and personal care

Education

Food service

Production

Transportation and moving

Engineering and science

0.4%

Business and finance

Computer and math

Legal and social services

Arts, media and sports

Police and fire

Industries

Construction

23%

Health care and social assistance

19%

Retail

19%

Agriculture and mining

14%

Education

Other services

Manufacturing

Finance, insurance and real estate

Restaurants and hotels

Professional and technical services

Public administration

0.4%

Admin, support and management

0.4%

Transportation, warehousing and utilities

Wholesale

Information

Arts and recreation

Median earnings per worker

$45,977

U.S. $49,666

Self-employed

3.2%

U.S. 10%

Government workers

23.5%

U.S. 14.5%

Nonprofit workers

13.8%

U.S. 8.8%

Median earnings by type of work

Type of work	52231	U.S.
Management, business, science and arts	$67,000	$74,888
Service	$18,500	$26,804
Sales and office	$35,509	$40,476
Construction and maintenance	$46,719	$49,199
Production and transportation	$78,214	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

26%

Some college

38%

Associate's

17%

Bachelor's

Graduate

High school graduate or higher: 97.6%
Bachelor's degree or higher: 16.5%
Graduate or professional degree: 9.5%
Households with broadband: 77.2%
Cable, fiber or DSL: 47.2%
No internet access: 22.3%
Without health insurance: 0%
Limited-English households: 0%

Geography

City (USPS): Harper
State: Iowa
County: Keokuk County
Center point: 41.3588° N, 92.0586° W
Land area: 35 sq mi
Water area: under 0.1 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

Zip codes near 52231

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
52248	Keota, IA	6.5 mi	1,675	$77,174	$157,000
52335	South English, IA	7.5 mi	644	$52,162	$106,100
52591	Sigourney, IA	7.5 mi	2,721	$62,404	$156,500
52355	Webster, IA	9.9 mi	283	$63,750	$110,200
52576	Ollie, IA	10 mi	371	$63,750	$119,600
52562	Hayesville, IA	12 mi	52	—	$69,000
52585	Richland, IA	12 mi	838	$75,809	$142,000
52359	West Chester, IA	13 mi	308	$67,727	—
52316	North English, IA	13 mi	1,597	$60,768	$150,600
52356	Wellman, IA	14 mi	2,664	$57,321	$227,800
50136	Keswick, IA	14 mi	376	$75,625	$97,800
50255	Thornburg, IA	16 mi	51	$39,722	—

Questions about 52231

What city is zip code 52231?

52231 is assigned to Harper, Iowa. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 52231 in?

52231 is in Keokuk County, Iowa.

What is the population of 52231?

About 539 people live in 52231, according to the Census Bureau's American Community Survey.

What time zone is 52231 in?

52231 is in Central Time.

What is the median household income in 52231?

The median household income in 52231 is $90,893.

What zip codes are near 52231?

The closest zip codes to 52231 are 52248, 52335, 52591, 52355, 52576.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 52231, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.