Zip code 51331: Arnolds Park, Iowa

Q: What city is zip code 51331?

51331 is assigned to Arnolds Park, Iowa. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 51331 in?

51331 is in Dickinson County, Iowa.

Q: What is the population of 51331?

About 935 people live in 51331, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 51331?

The median household income in 51331 is $89,167.

Q: What zip codes are near 51331?

The closest zip codes to 51331 are 51355, 51351, 51360, 51340, 51364.

Residential delivery areaDickinson CountyCentral Time

Population

935

Median household income

$89K

U.S. $81K

Median home value

$449K

U.S. $333K

Median rent

$497/mo

U.S. $1,413

Median age

64.8

U.S. 38.9

Land area

1.6 sq mi

583 people/sq mi

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

About 51331

51331 is a suburban zip code in Arnolds Park, Iowa (Dickinson County), covering 1.6 sq mi of land. About 935 people live here, or 583 per square mile. The median resident is 64.8 years old, compared with 38.9 nationally.

The median household earns $89,167 a year, close to the national median of $80,734. 5.8% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $448,800, or 5.0 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 89% of occupied homes are lived in by their owners, and renters pay a median of $497 a month.

41% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 16.8 minutes each way, and 14% of workers work from home. The most common jobs among working residents are in sales; business and finance; and management.

How 51331 compares

Sorted from highest to lowest national percentile

Median age64.8
99th
U.S. 38.9 · IA 38.69th of 911 in IA
Housing vacancy67.7%
99th
U.S. 10.1% · IA 8.5%2nd of 909 in IA
Residents 65 and older49.1%
99th
U.S. 17.2% · IA 18.1%10th of 911 in IA
Homeownership rate89.3%
95th
StrengthU.S. 65.2% · IA 71.7%175th of 909 in IA
Per capita income$70,729
92nd
StrengthU.S. $44,673 · IA $40,87713th of 911 in IA
Broadband access95.6%
81st
StrengthU.S. 91% · IA 88.9%66th of 909 in IA
Self-employed workers12.2%
78th
U.S. 10% · IA 10.2%530th of 911 in IA
Income inequality (Gini)0.461
70th
U.S. 0.483 · IA 0.444142nd of 908 in IA
Median home value$448,800
69th
U.S. $332,700 · IA $208,0004th of 881 in IA
Bachelor's degree or higher40.7%
67th
U.S. 35.7% · IA 31.4%72nd of 911 in IA
Veterans6.9%
65th
U.S. 6.2% · IA 6.5%441st of 911 in IA
Median household income$89,167
61st
U.S. $80,734 · IA $75,059199th of 896 in IA
Median earnings per worker$51,875
61st
U.S. $49,666 · IA $47,712244th of 910 in IA
Work from home14.1%
57th
U.S. 15.1% · IA 11.3%190th of 911 in IA
Population density583/sq mi
35th
U.S. 95/sq mi · IA 58/sq mi82nd of 911 in IA
Healthcare workers8.4%
33rd
U.S. 9.7% · IA 9.2%453rd of 911 in IA
Poverty rate5.8%
17th
StrengthU.S. 12.5% · IA 11.1%629th of 909 in IA
Tech workers1.2%
17th
U.S. 3.8% · IA 2.9%356th of 911 in IA
Government workers9.4%
14th
U.S. 14.5% · IA 14.5%698th of 911 in IA
Rent-burdened renters37.2%
11th
StrengthU.S. 51.1% · IA 43.9%386th of 882 in IA
Average commute16.8 min
3rd
StrengthU.S. 26.4 min · IA 19.8 min793rd of 902 in IA
Foreign-born residents0.5%
3rd
U.S. 14.1% · IA 5.9%566th of 911 in IA
Population935
1st
U.S. 334,922,499 · IA 3,210,507487th of 911 in IA
Median gross rent$497
1st
U.S. $1,413 · IA $972752nd of 771 in IA
Unemployment rate0.5%
1st
StrengthU.S. 5.2% · IA 3.6%735th of 911 in IA
Diversity index4.2
1st
U.S. 61.4 · IA 31.4790th of 911 in IA
Uninsured rate0.9%
1st
StrengthU.S. 8.4% · IA 5%799th of 911 in IA
Residents under 186.6%
1st
U.S. 22% · IA 22.9%890th of 911 in IA

Measure	51331	Dickinson	IA	U.S.	National percentile	Rank in IA
Median age	64.8	48.7	38.6	38.9	99th	9th of 911
Housing vacancy	67.7%	37.7%	8.5%	10.1%	99th	2nd of 909
Residents 65 and older	49.1%	28.2%	18.1%	17.2%	99th	10th of 911
Homeownership rateStrength	89.3%	77.5%	71.7%	65.2%	95th	175th of 909
Per capita incomeStrength	$70,729	$48,636	$40,877	$44,673	92nd	13th of 911
Broadband accessStrength	95.6%	90.8%	88.9%	91%	81st	66th of 909
Self-employed workers	12.2%	14.6%	10.2%	10%	78th	530th of 911
Income inequality (Gini)	0.461	0.446	0.444	0.483	70th	142nd of 908
Median home value	$448,800	$270,700	$208,000	$332,700	69th	4th of 881
Bachelor's degree or higher	40.7%	31.2%	31.4%	35.7%	67th	72nd of 911
Veterans	6.9%	8%	6.5%	6.2%	65th	441st of 911
Median household income	$89,167	$75,432	$75,059	$80,734	61st	199th of 896
Median earnings per worker	$51,875	$45,769	$47,712	$49,666	61st	244th of 910
Work from home	14.1%	10.5%	11.3%	15.1%	57th	190th of 911
Population density	583/sq mi	47/sq mi	58/sq mi	95/sq mi	35th	82nd of 911
Healthcare workers	8.4%	8.5%	9.2%	9.7%	33rd	453rd of 911
Poverty rateStrength	5.8%	7.6%	11.1%	12.5%	17th	629th of 909
Tech workers	1.2%	0.9%	2.9%	3.8%	17th	356th of 911
Government workers	9.4%	12.5%	14.5%	14.5%	14th	698th of 911
Rent-burdened rentersStrength	37.2%	39.5%	43.9%	51.1%	11th	386th of 882
Average commuteStrength	16.8 min	16.7 min	19.8 min	26.4 min	3rd	793rd of 902
Foreign-born residents	0.5%	1.2%	5.9%	14.1%	3rd	566th of 911
Population	935	17,990	3,210,507	334,922,499	1st	487th of 911
Median gross rent	$497	$922	$972	$1,413	1st	752nd of 771
Unemployment rateStrength	0.5%	3%	3.6%	5.2%	1st	735th of 911
Diversity index	4.2	12.7	31.4	61.4	1st	790th of 911
Uninsured rateStrength	0.9%	2.6%	5%	8.4%	1st	799th of 911
Residents under 18	6.6%	19.1%	22.9%	22%	1st	890th 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

5–17

18–24

25–34

35–44

45–54

20%

55–64

27%

65–74

22%

75+

Median age

64.8

Under 18

6.6%

65 and over

49.1%

Race and ethnicity

White98%
Black0%
Hispanic0.7%
Asian0%
Native American0%
Pacific Islander0%
Other0%
Multiracial1%

Diversity index

4.2

U.S. 61.4

Foreign-born

0.5%

U.S. 14.1%

Born in state

70.1%

Language spoken at home (households)

English only

98%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 522
Average household size: 1.8
Family households: 62.1%
Married couples: 58.6%
Living alone: 32%
Veterans (of adults): 6.9%
Male / female: 47% / 53%

Income and poverty

Household income distribution

<$25k

10%

$25–50k

$50–75k

20%

$75–100k

15%

$100–150k

23%

$150–200k

$200k+

14%

Median household income

51331

$89,167

Dickinson Co.

$75,432

Iowa

$75,059

United States

$80,734

Per capita income

$70,729

U.S. $44,673

Poverty rate

5.8%

U.S. 12.5%

Households earning $150K+

23.2%

U.S. 23%

Income inequality (Gini)

0.461

U.S. 0.483

Housing

Median home value

51331

$448,800

Dickinson Co.

$270,700

Iowa

$208,000

United States

$332,700

Median gross rent

51331

$497

Dickinson Co.

$922

Iowa

$972

United States

$1,413

Types of housing

Single-family

60%

2–4 units

5–19 units

20+ units

12%

Mobile home

16%

Boat, RV, van

Housing units: 1,618
Owner-occupied: 89.3%
Vacant: 67.7%
Median year built: 1997
Median rooms: 4.6
Renters paying 30%+ of income: 37.2%
Renters paying 50%+ of income: 20.9%
Home value to income: 5.0× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

74%

Carpooled

10%

Transit

Walked

Bicycle

Worked from home

14%

Other

0.7%

Commute time (one way)

<10 min

14%

10–19

58%

20–29

17%

30–44

45–59

60+

Average commute

16.8 min

U.S. 26.4 min

Unemployment

0.5%

U.S. 5.2%

In labor force

48.9%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Sales

19%

Business and finance

19%

Management

15%

Office and admin

Healthcare

Food service

Education

Production

Legal and social services

Cleaning and personal care

Construction and repair

Transportation and moving

Computer and math

Engineering and science

0.9%

Arts, media and sports

0.9%

Farming, fishing and forestry

0.5%

Police and fire

Industries

Finance, insurance and real estate

25%

Health care and social assistance

15%

Retail

14%

Manufacturing

10%

Restaurants and hotels

Education

Other services

Professional and technical services

Construction

Wholesale

Arts and recreation

Agriculture and mining

Public administration

Information

Admin, support and management

Transportation, warehousing and utilities

0.9%

Median earnings per worker

$51,875

U.S. $49,666

Self-employed

12.2%

U.S. 10%

Government workers

9.4%

U.S. 14.5%

Nonprofit workers

11.9%

U.S. 8.8%

Median earnings by type of work

Type of work	51331	U.S.
Management, business, science and arts	$88,750	$74,888
Service	$6,700	$26,804
Sales and office	$42,188	$40,476
Construction and maintenance	$29,375	$49,199
Production and transportation	$41,875	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

26%

Some college

25%

Associate's

Bachelor's

30%

Graduate

11%

High school graduate or higher: 97.4%
Bachelor's degree or higher: 40.7%
Graduate or professional degree: 10.7%
Households with broadband: 95.6%
Cable, fiber or DSL: 84.9%
No internet access: 3.3%
Without health insurance: 0.9%
Limited-English households: 0%

Geography

City (USPS): Arnolds Park
State: Iowa
County: Dickinson County
Center point: 43.3596° N, 95.1308° W
Land area: 1.6 sq mi
Water area: 0.9 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Arnolds Park73% of zip
West Okoboji4% of zip

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

Zip codes near 51331

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
51355	Okoboji, IA	2.1 mi	1,048	$72,262	$421,100
51351	Milford, IA	4.1 mi	4,988	$73,824	$273,100
51360	Spirit Lake, IA	5.6 mi	8,653	$75,882	$271,700
51340	Fostoria, IA	8.3 mi	75	$90,250	$133,800
51364	Terril, IA	9.4 mi	803	$66,875	$156,900
51347	Lake Park, IA	10 mi	1,470	$82,750	$201,600
51363	Superior, IA	11 mi	111	$75,625	$82,900
51338	Everly, IA	14 mi	852	$57,500	$125,200
51301	Spencer, IA	14 mi	12,638	$63,402	$188,300
51345	Harris, IA	16 mi	347	$54,301	$141,700
51333	Dickens, IA	17 mi	374	$110,833	$195,600
51334	Estherville, IA	17 mi	6,960	$57,482	$112,000

Questions about 51331

What city is zip code 51331?

51331 is assigned to Arnolds Park, Iowa. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 51331 in?

51331 is in Dickinson County, Iowa.

What is the population of 51331?

About 935 people live in 51331, according to the Census Bureau's American Community Survey.

What time zone is 51331 in?

51331 is in Central Time.

What is the median household income in 51331?

The median household income in 51331 is $89,167.

What zip codes are near 51331?

The closest zip codes to 51331 are 51355, 51351, 51360, 51340, 51364.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 51331, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.