Arnolds Park ZIP Codes — Dickinson County, IA

There is one unique ZIP code in Arnolds Park, Iowa and it is 51331. Area code: 712.

ZIP codes

1.61

sq mi land

0.91

sq mi water

712

area code

Arnolds Park, IA ZIP code map

About Arnolds Park, IA

Arnolds Park, Iowa, is a charming city located within Dickinson County. Known for its picturesque lakeside views and a vibrant community, it serves as a popular summer destination for tourists. With its small-town atmosphere and welcoming spirit, Arnolds Park encapsulates the essence of Midwestern living.

Location & geography

Situated in northwestern Iowa, Arnolds Park lies on the shores of West Okoboji Lake, contributing to its scenic beauty. The city is approximately 4 miles from Spirit Lake to the south and about 5 miles from Okoboji to the west. The total land area of the city is 1.61 square miles, complemented by a water area of 0.91 square miles, making it an appealing location for water-related activities.

Community & economy

The character of Arnolds Park reflects a blend of local residents and seasonal visitors, fostering a vibrant community life. The primary industries in the area revolve around tourism, with many people coming to enjoy the recreational opportunities provided by the lakes. Daily life here is often filled with recreational activities, including fishing, boating, and visiting local attractions, contributing to a laid-back yet active lifestyle.

Transportation

Arnolds Park is conveniently accessible via Highway 71, which runs north and south through the region. The nearest airports include the small airport at Spirit Lake, ensuring connectivity for both residents and visitors. Public transit options may be limited, but the city’s compact size makes it easy to navigate by car or on foot.

History

Founded in the late 19th century, Arnolds Park has historically been a leisure destination, attracting visitors to its scenic lakes and recreational offerings. Key industries throughout its history have focused on tourism and hospitality, catering to summer vacationers discovering the area's natural beauty. Arnolds Park is also notable for the Historic Arnolds Park Amusement Park, which has been a staple in the community since early 1880s.

Did you know?

One surprising fact about Arnolds Park is that it is home to one of Iowa's oldest amusement parks, which adds a unique allure to the city. Additionally, the city hosts numerous events throughout the year, drawing visitors for festivals that celebrate the local culture and community spirit.

ZIP codes for Arnolds Park, IA (1)

ZIP code	City	County	Map
51331	Arnolds Park	Dickinson	View map

Demographics & statistics

1,017

Population

61.6

Median age

$80,577

Median household income

$58,657

Per capita income

$316,700

Median home value

$658

Median monthly rent

85.5%

Home ownership

6.3%

Poverty rate

0.4%

Unemployment

1,552

Housing units

38.5%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

115

65–74

136

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	71	7.0%
18 and over	946	93.0%
65 and over	373	36.7%
Median age	61.6 years

Race & ethnicity

White 98.4%

Two or more races 1.6%

Group	Count	%
White	1,001	98.4%
Two or more races	16	1.6%

Household income

Under $10k 1.7%

$10k–$15k 3.4%

$15k–$25k 11.1%

$25k–$35k 4.1%

$35k–$50k 6.3%

$50k–$75k 18.5%

$75k–$100k 11.6%

$100k–$150k 25.3%

$150k–$200k 9.5%

$200k+ 8.5%

Range	% of households
Under $10k	1.7%
$10k–$15k	3.4%
$15k–$25k	11.1%
$25k–$35k	4.1%
$35k–$50k	6.3%
$50k–$75k	18.5%
$75k–$100k	11.6%
$100k–$150k	25.3%
$150k–$200k	9.5%
$200k+	8.5%
Median income	$80,577

Housing

Home values

Under $50k 4.8%

$50k–$100k 2.8%

$100k–$150k 8.5%

$150k–$200k 8.7%

$200k–$300k 23.7%

$300k–$500k 21.7%

$500k–$1M 19.9%

$1M+ 9.9%

Housing overview

Metric	Value
Median home value	$316,700
Median rent / month	$658
Owner occupied	85.5%
Renter occupied	14.5%
Vacant	64.1%
Single-family detached	60.4%
Large apartment buildings	9.6%
Mobile homes	13.8%
Median rooms	4.9
Avg household size (owned)	1.74

Year built

Era	%
2020 or later	0.0%
2010–2019	16.7%
2000–2009	24.6%
1990–1999	10.0%
1980–1989	5.3%
1970–1979	14.6%
1960–1969	3.5%
1950–1959	4.4%
1940–1949	4.6%
1939 or earlier	16.4%

Bedrooms

Size	% of units
No bedroom (studio)	2.4%
1 bedroom	8.1%
2 bedrooms	30.7%
3 bedrooms	37.2%
4 bedrooms	17.8%
5+ bedrooms	3.7%

Vehicles per household

Vehicles	% of households
No vehicle	0.5%
1 vehicle	34.5%
2 vehicles	51.2%
3 or more	13.8%

Heating fuel

Fuel type	%
Utility gas	75.3%
Electricity	22.3%
Propane / LP gas	1.0%
Wood	1.0%

Households & families

Household type	Count	%
Married-couple family	290	49.3%
Cohabiting couple	32	5.4%
Male householder, no spouse	104	17.7%
Female householder, no spouse	162	27.6%
Households with children under 18	40	6.8%
Households with seniors (65+)	266	45.2%
Average household size	1.73

Marital status

Status	Male	Female
Never married	23.5%	17.2%
Married	64.2%	56.4%
Separated	0.0%	0.8%
Widowed	3.6%	10.6%
Divorced	8.7%	15.1%

Education

Less than 9th grade 0.6%

Some HS, no diploma 1.5%

HS graduate 24.4%

Some college, no degree 24.9%

Associate's degree 10.1%

Bachelor's degree 27.6%

Graduate / professional 10.9%

Metric	%
HS diploma or higher	97.8%
Bachelor's or higher	38.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	7	13.2%
Kindergarten	0	0.0%
Elementary school	14	26.4%
High school	12	22.6%
College / grad school	20	37.7%

Employment

Industry of employment

Education & healthcare 20.1%

Finance & real estate 14.8%

Retail trade 13.8%

Manufacturing 11.3%

Professional & management 9.2%

Construction 8.8%

Arts, food & hospitality 6.6%

Other services 5.7%

Wholesale trade 3.3%

Transportation & utilities 2.1%

Public administration 1.9%

Agriculture & mining 1.6%

Information 0.8%

Occupation

Category	%
Management, business & arts	43.7%
Service	16.6%
Sales & office	24.2%
Natural resources & construction	8.6%
Production & transportation	7.0%

Employment type

Type	%
Private sector	82.7%
Government	7.8%
Self-employed	9.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	77.7%
Carpool	11.3%
Public transit	0.0%
Walk	0.4%
Other means	0.4%
Avg commute (minutes)	16.6

Poverty

All people 6.3%

Under 18 years 0.0%

18 and over 6.8%

Married-couple families 2.4%

Female-led households 0.0%

Income support

Source	% of households
Social Security	51.4%
Retirement income	35.7%
Supplemental Security	0.9%
Cash public assistance	1.0%
Food stamps / SNAP	4.4%

Health indicators

Condition	%
High blood pressure	39.7%
High cholesterol	37.3%
Heart disease	8.3%
Stroke	3.5%
Asthma	8.6%
Arthritis	29.8%
Kidney disease	3.4%
Pulmonary disease	7.1%
Cancer	9.9%

Behavior / access	%
Binge drinking	18.3%
No physical activity	21.6%
Less than 7 hrs sleep	26.3%
Fair or poor health	11.6%
Poor mental health	10.7%
Poor physical health	9.2%
No health insurance	6.8%
Visited doctor (checkup)	79.0%
Visited dentist	72.9%
Cholesterol screening	92.7%
Teeth loss	9.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	96	10.1%

Disability	%
Any disability	16.2%
Under 18	4.2%
18–64 years	9.1%
65 and over	29.5%

Health insurance coverage

Type	%
Private insurance	71.0%
Public insurance	51.4%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	975	95.9%
Spanish	5	0.5%
Other Indo-European	3	0.3%
Asian & Pacific Islander	2	0.2%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,007	99.0%
Born in same state	984	96.8%
Born in different state	648	63.7%
Foreign born	23	2.3%
Naturalized citizen	10	1.0%
Not a US citizen	5	50.0%

Ancestry

Ancestry	Count	%
French	172	16.9%
Italian	163	16%
Polish	78	7.7%

Ancestry	Count	%
English	61	6%
Arab	35	3.4%
Dutch	33	3.2%

Technology access

Metric	% of households
Computer access	57.8%
Internet access	98.6%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Arnolds Park, IA have?

Arnolds Park, IA has one ZIP code: 51331. Each ZIP code serves a distinct delivery area within the city and surrounding region.