57366 ZIP Code — Parkston, SD

Hutchinson County, South Dakota

ZIP code 57366 is located in Parkston, South Dakota, within Hutchinson County. It covers approximately 217.99 square miles and serves a population of 2,728 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57366

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 $159,300. Owner-occupancy sits near the national average at 75%.

Median household income is $73,625. The poverty rate of 7% is below the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 16 minutes is near the national average.

Educational attainment is near the national average, with 23% of residents holding a bachelor's degree or higher.

2,728
population
217.99
sq mi land
Standard
ZIP type
Central (CT)
timezone
57366 ZIP code map
Cities in ZIP code 57366

Below are the cities the US Postal Service accepts for ZIP code 57366. Using any city not on this list may result in mail delivery delays.

City Status
Parkston Acceptable
Parkston Preferred
Nearby ZIP codes
57331 Dimock (6 mi) 57334 Ethan (8.7 mi) 57376 Tripp (11.9 mi) 57052 Olivet (13.5 mi) 57330 Delmont (13.9 mi) 57332 Emery (17.2 mi)
Demographics updated 05/2026
Population
Total population 2,728
Population density 13 / sq mi
State FIPS 46
County FIPS 067
Geography
Land area 217.99 sq mi
Water area 0.26 sq mi
Latitude 43.3983
Longitude -97.9656
Timezone Central (CT)
Area code 605
Total population by age
Gender
Race & ethnicity
Economics updated 05/2026
Household income
Income range This ZIP County avg State avg
Under $50k 33.0% 39.5% 41.7%
$50k – $100k 40.9% 40.7% 33.8%
$100k – $200k 23.1% 17.4% 20.1%
Over $200k 3.0% 2.4% 4.4%

Demographics & statistics

2,728
Population
13
People per sq mi
37.4
Median age
$73,625
Median household income
$37,752
Per capita income
$159,300
Median home value
$727
Median monthly rent
74.5%
Home ownership
7.2%
Poverty rate
1.4%
Unemployment
914
Housing units
23.1%
Bachelor's or higher

Age distribution

Male Female
127
Under 5
119
98
5–9
91
98
10–14
91
84
15–19
78
97
20–24
90
156
25–34
146
158
35–44
149
151
45–54
142
86
55–59
80
120
60–64
112
150
65–74
141
44
75–84
42
40
85+
38
← Male
Female →

Age summary

GroupCount%
Under 1872826.7%
18 and over2,00073.3%
65 and over45516.7%
Median age37.4 years

Race & ethnicity

White 95.2%
Two or more races 3.1%
Hispanic or Latino 0.8%
American Indian / Alaska Native 0.7%
Other race 0.1%
GroupCount%
White2,61895.2%
Two or more races863.1%
Hispanic or Latino230.8%
American Indian / Alaska Native200.7%
Other race40.1%

Household income

Income range This ZIP County avg State avg
Under $50k 33.0% 39.5% 41.7%
$50k – $100k 40.9% 40.7% 33.8%
$100k – $200k 23.1% 17.4% 20.1%
Over $200k 3.0% 2.4% 4.4%
Under $10k 2.4%
$10k–$15k 2.1%
$15k–$25k 8.3%
$25k–$35k 3.3%
$35k–$50k 12.8%
$50k–$75k 21.7%
$75k–$100k 13.6%
$100k–$150k 25.2%
$150k–$200k 4.3%
$200k+ 6.4%
Range% of households
Under $10k2.4%
$10k–$15k2.1%
$15k–$25k8.3%
$25k–$35k3.3%
$35k–$50k12.8%
$50k–$75k21.7%
$75k–$100k13.6%
$100k–$150k25.2%
$150k–$200k4.3%
$200k+6.4%
Median income$73,625

Housing

Home values

Under $50k 9.2%
$50k–$100k 18.0%
$100k–$150k 20.5%
$150k–$200k 11.3%
$200k–$300k 17.9%
$300k–$500k 17.6%
$500k–$1M 4.9%
$1M+ 0.5%

Housing overview

MetricValue
Median home value$159,300
Median rent / month$727
Owner occupied74.5%
Renter occupied25.5%
Vacant8.6%
Single-family detached85.2%
Large apartment buildings0.6%
Mobile homes0.6%
Median rooms6.0
Avg household size (owned)2.46

Year built

Era%
2020 or later0.0%
2010–20193.4%
2000–20096.8%
1990–19994.9%
1980–19893.6%
1970–197920.4%
1960–196912.9%
1950–195916.3%
1940–19496.3%
1939 or earlier25.4%

Bedrooms

Size% of units
No bedroom (studio)0.6%
1 bedroom4.0%
2 bedrooms27.5%
3 bedrooms38.3%
4 bedrooms17.9%
5+ bedrooms11.7%

Vehicles per household

Vehicles% of households
No vehicle2.9%
1 vehicle16.9%
2 vehicles36.6%
3 or more43.5%

Heating fuel

Fuel type%
Utility gas36.5%
Electricity32.0%
Propane / LP gas21.9%
Fuel oil6.0%

Households & families

Household typeCount%
Married-couple family56051.4%
Cohabiting couple767.0%
Male householder, no spouse17816.3%
Female householder, no spouse27525.3%
Households with children under 1827825.5%
Households with seniors (65+)30327.8%
Average household size2.41

Marital status

StatusMaleFemale
Never married32.7%24.0%
Married57.7%51.5%
Separated0.0%0.0%
Widowed2.1%9.8%
Divorced7.5%14.7%

Education

Less than 9th grade 4.0%
Some HS, no diploma 1.8%
HS graduate 34.8%
Some college, no degree 21.0%
Associate's degree 15.3%
Bachelor's degree 15.7%
Graduate / professional 7.4%
Metric%
HS diploma or higher94.1%
Bachelor's or higher23.1%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool13018.5%
Kindergarten568.0%
Elementary school25836.7%
High school15922.6%
College / grad school10014.2%

Employment

Industry of employment

Education & healthcare 27.0%
Agriculture & mining 15.2%
Retail trade 10.9%
Construction 7.2%
Arts, food & hospitality 6.6%
Manufacturing 6.0%
Transportation & utilities 5.2%
Wholesale trade 4.9%
Professional & management 4.8%
Public administration 3.7%
Information 3.3%
Finance & real estate 2.7%
Other services 2.6%

Occupation

Category%
Management, business & arts35.4%
Service17.4%
Sales & office18.4%
Natural resources & construction13.8%
Production & transportation15.0%

Employment type

Type%
Private sector80.4%
Government9.9%
Self-employed8.8%
Unpaid family workers0.9%

Commute

Method%
Drive alone84.6%
Carpool7.0%
Public transit0.0%
Walk2.8%
Work from home3.8%
Other means1.8%
Avg commute (minutes)15.5

Poverty

All people 7.2%
Under 18 years 2.0%
18 and over 9.0%
Married-couple families 0.5%
Female-led households 20.0%

Income support

Source% of households
Social Security28.7%
Retirement income21.3%
Supplemental Security1.7%
Cash public assistance1.2%
Food stamps / SNAP4.0%

Health indicators

Condition%
Obesity30.3%
High blood pressure34.1%
High cholesterol33.1%
Diabetes9.8%
Heart disease8.4%
Stroke3.7%
Asthma8.5%
Arthritis27.1%
Kidney disease3.5%
Pulmonary disease6.7%
Cancer9.2%
Behavior / access%
Smoking16.3%
Binge drinking17.7%
No physical activity24.1%
Less than 7 hrs sleep27.4%
Depression14.4%
Fair or poor health12.1%
Poor mental health9.8%
Poor physical health9.3%
No health insurance11.8%
Visited doctor (checkup)77.1%
Visited dentist69.8%
Cholesterol screening90.6%
Teeth loss14.8%

Veterans & disability

VeteransCount%
Civilian veterans1035.2%
Disability%
Any disability8.5%
Under 181.2%
18–64 years5.9%
65 and over30.8%

Health insurance coverage

Type%
Private insurance81.1%
Public insurance23.7%
No insurance3.6%
Uninsured under 193.4%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only2,48291.0%
Spanish672.7%
Other Indo-European110.4%
Asian & Pacific Islander562.3%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)2,71099.3%
Born in same state2,71099.3%
Born in different state2,28383.7%
Foreign born00.0%
Naturalized citizen180.7%
Not a US citizen738.9%

Ancestry

AncestryCount%
Italian2268.3%
Polish1495.5%
English1164.3%
Arab752.7%
French652.4%
AncestryCount%
German190.7%
Irish110.4%
Dutch60.2%
Norwegian30.1%

Technology access

Metric% of households
Computer access39.9%
Internet access85.6%

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

Frequently asked questions about ZIP code 57366

What city is ZIP code 57366 in?

ZIP code 57366 is primarily assigned to Parkston, South Dakota.

What county is ZIP code 57366 in?

ZIP code 57366 falls within Hutchinson County, South Dakota.

What is the typical home value in ZIP code 57366?

The median home value in ZIP code 57366 is $159,300.

What is the population of ZIP code 57366?

ZIP code 57366 has an estimated population of 2,728 residents, with a density of 13 people per square mile.

What is the median household income in ZIP code 57366?

The median household income in ZIP code 57366 is $73,625, below the national median of ~$75,000.

What timezone is ZIP code 57366 in?

ZIP code 57366 observes the CST timezone.

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