51347 ZIP Code — Lake Park, IA

Dickinson County, Iowa

ZIP code 51347 is located in Lake Park, Iowa, within Dickinson County. It covers approximately 81.04 square miles and serves a population of 1,621 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.

About ZIP code 51347

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $153,300. Owner-occupancy is high at 91%, well above the national average.

Median household income is $79,150. The poverty rate of 6% is below the national average. 35% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is production, transportation, and material moving, with manufacturing as the leading industry. The average commute of 19 minutes is near the national average.

Educational attainment is near the national average, with 21% of residents holding a bachelor's degree or higher.

Overall, ZIP code 51347 reflects a community defined by high homeownership and a significant Social Security-dependent population.

1,621

population

81.04

sq mi land

Standard

ZIP type

Central (CT)

timezone

51347 ZIP code map

Cities in ZIP code 51347

Below are the cities the US Postal Service accepts for ZIP code 51347. Using any city not on this list may result in mail delivery delays.

City	Status
Lake Park	Preferred

Nearby ZIP codes

51345 Harris (7.2 mi) 51355 Okoboji (8.2 mi) 51351 Milford (8.3 mi) 51331 Arnolds Park (9.4 mi) 51360 Spirit Lake (9.9 mi) 51354 Ocheyedan (12.9 mi) 56150 Lakefield (15.1 mi) 51350 Melvin (16.3 mi) 51338 Everly (16.9 mi) 56167 Round Lake (17.2 mi) 51346 Hartley (18.4 mi) 51364 Terril (18.6 mi)

Demographics updated 05/2026

Population
Total population	1,621
Population density	20 / sq mi
State FIPS	19
County FIPS	059

Geography
Land area	81.04 sq mi
Water area	1.95 sq mi
Latitude	43.4214
Longitude	-95.2991
Timezone	Central (CT)
Area code	712

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	38.9%	39.9%	40.1%
$50k – $100k	27.0%	34.8%	33.4%
$100k – $200k	31.4%	19.6%	21.5%
Over $200k	2.7%	5.7%	5.0%

Demographics & statistics

1,621

Population

People per sq mi

40.2

Median age

$79,150

Median household income

$38,252

Per capita income

$153,300

Median home value

$923

Median monthly rent

91.4%

Home ownership

5.6%

Poverty rate

0.3%

Unemployment

736

Housing units

21.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

117

25–34

110

138

35–44

129

45–54

55–59

60–64

118

65–74

110

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	351	21.7%
18 and over	1,270	78.3%
65 and over	388	23.9%
Median age	40.2 years

Race & ethnicity

White 95.8%

Two or more races 2%

Asian 1.2%

Hispanic or Latino 0.9%

American Indian / Alaska Native 0.2%

Group	Count	%
White	1,566	95.8%
Two or more races	32	2%
Asian	20	1.2%
Hispanic or Latino	14	0.9%
American Indian / Alaska Native	3	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	38.9%	39.9%	40.1%
$50k – $100k	27.0%	34.8%	33.4%
$100k – $200k	31.4%	19.6%	21.5%
Over $200k	2.7%	5.7%	5.0%

Under $10k 3.2%

$10k–$15k 3.3%

$15k–$25k 3.2%

$25k–$35k 3.9%

$35k–$50k 15.5%

$50k–$75k 15.2%

$75k–$100k 19.6%

$100k–$150k 21.5%

$150k–$200k 10.9%

$200k+ 3.6%

Range	% of households
Under $10k	3.2%
$10k–$15k	3.3%
$15k–$25k	3.2%
$25k–$35k	3.9%
$35k–$50k	15.5%
$50k–$75k	15.2%
$75k–$100k	19.6%
$100k–$150k	21.5%
$150k–$200k	10.9%
$200k+	3.6%
Median income	$79,150

Housing

Home values

Under $50k 6.5%

$50k–$100k 18.4%

$100k–$150k 24.1%

$150k–$200k 11.8%

$200k–$300k 23.3%

$300k–$500k 13.1%

$500k–$1M 2.8%

Housing overview

Metric	Value
Median home value	$153,300
Median rent / month	$923
Owner occupied	91.4%
Renter occupied	8.6%
Vacant	16.9%
Single-family detached	93.3%
Large apartment buildings	0.0%
Mobile homes	1.8%
Median rooms	6.2
Avg household size (owned)	2.47

Year built

Era	%
2020 or later	0.0%
2010–2019	6.4%
2000–2009	14.2%
1990–1999	7.2%
1980–1989	3.9%
1970–1979	11.6%
1960–1969	12.2%
1950–1959	7.7%
1940–1949	7.8%
1939 or earlier	28.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.8%
1 bedroom	2.9%
2 bedrooms	21.6%
3 bedrooms	48.5%
4 bedrooms	19.2%
5+ bedrooms	7.1%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	19.6%
2 vehicles	36.1%
3 or more	44.3%

Heating fuel

Fuel type	%
Utility gas	68.1%
Electricity	14.3%
Propane / LP gas	17.1%

Households & families

Household type	Count	%
Married-couple family	357	54.2%
Cohabiting couple	71	10.8%
Male householder, no spouse	131	19.9%
Female householder, no spouse	100	15.2%
Households with children under 18	192	29.1%
Households with seniors (65+)	244	37.0%
Average household size	2.42

Marital status

Status	Male	Female
Never married	33.1%	22.0%
Married	51.3%	58.2%
Separated	1.7%	0.6%
Widowed	0.3%	8.8%
Divorced	13.7%	10.4%

Education

Less than 9th grade 0.4%

Some HS, no diploma 0.7%

HS graduate 36.0%

Some college, no degree 17.1%

Associate's degree 24.4%

Bachelor's degree 18.2%

Graduate / professional 3.2%

Metric	%
HS diploma or higher	98.9%
Bachelor's or higher	21.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	27	9.7%
Elementary school	119	42.7%
High school	90	32.3%
College / grad school	43	15.4%

Employment

Industry of employment

Manufacturing 26.3%

Education & healthcare 16.4%

Professional & management 11.2%

Construction 10.2%

Retail trade 8.6%

Transportation & utilities 5.7%

Agriculture & mining 5.2%

Finance & real estate 4.1%

Other services 3.4%

Arts, food & hospitality 2.8%

Wholesale trade 2.6%

Public administration 2.6%

Information 1.0%

Occupation

Category	%
Management, business & arts	22.8%
Service	16.8%
Sales & office	18.5%
Natural resources & construction	15.6%
Production & transportation	26.4%

Employment type

Type	%
Private sector	79.8%
Government	14.5%
Self-employed	5.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	88.9%
Carpool	5.6%
Public transit	0.0%
Walk	1.0%
Work from home	4.5%
Other means	0.0%
Avg commute (minutes)	18.5

Poverty

All people 5.6%

Under 18 years 2.3%

18 and over 6.5%

Married-couple families 2.8%

Female-led households 26.3%

Income support

Source	% of households
Social Security	35.4%
Retirement income	21.7%
Supplemental Security	3.3%
Cash public assistance	1.1%
Food stamps / SNAP	3.9%

Health indicators

Condition	%
Obesity	35.5%
High blood pressure	36.7%
High cholesterol	34.4%
Diabetes	10.3%
Heart disease	7.5%
Stroke	3.3%
Asthma	8.7%
Arthritis	27.3%
Kidney disease	3.1%
Pulmonary disease	6.8%
Cancer	8.7%

Behavior / access	%
Smoking	15.7%
Binge drinking	20.0%
No physical activity	23.1%
Less than 7 hrs sleep	28.0%
Depression	16.3%
Fair or poor health	11.8%
Poor mental health	11.9%
Poor physical health	9.2%
No health insurance	8.0%
Visited doctor (checkup)	76.8%
Visited dentist	70.5%
Cholesterol screening	91.0%
Teeth loss	11.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	78	6.1%

Disability	%
Any disability	7.6%
Under 18	2.6%
18–64 years	6.1%
65 and over	16.1%

Health insurance coverage

Type	%
Private insurance	77.1%
Public insurance	36.4%
No insurance	4.1%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,540	95.0%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,601	98.8%
Born in same state	1,601	98.8%
Born in different state	1,044	64.4%
Foreign born	0	0.0%
Naturalized citizen	20	1.2%
Not a US citizen	5	25.0%

Ancestry

Ancestry	Count	%
English	111	6.8%
Italian	99	6.1%
French	81	5%

Ancestry	Count	%
Polish	80	4.9%
Dutch	73	4.5%
Arab	30	1.9%

Technology access

Metric	% of households
Computer access	40.7%
Internet access	91.7%

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

Frequently asked questions about ZIP code 51347

What city is ZIP code 51347 in?

ZIP code 51347 is primarily assigned to Lake Park, Iowa.

What county is ZIP code 51347 in?

ZIP code 51347 falls within Dickinson County, Iowa.

Is ZIP code 51347 mostly owner-occupied?

91% of occupied units in ZIP code 51347 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 51347?

The median home value in ZIP code 51347 is $153,300.

Does ZIP code 51347 have a large retiree population?

35% of households in ZIP code 51347 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 51347?

ZIP code 51347 has an estimated population of 1,621 residents, with a density of 20 people per square mile.

What timezone is ZIP code 51347 in?

ZIP code 51347 observes the CST timezone.