57553 ZIP Code — Milesville, SD

Haakon County, South Dakota

ZIP code 57553 is located in Milesville, South Dakota, within Haakon County. It covers approximately 260.10 square miles and serves a population of 202 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 605.

About ZIP code 57553

The housing stock consists of predominantly single-family detached homes. Much of the housing stock is relatively new, reflecting recent development activity. Median home value is $159,000. Owner-occupancy is high at 91%, well above the national average.

Median household income is $137,143.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 57 minutes suggests many residents work outside the immediate area.

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

Health indicators show elevated rates of smoking (23%) compared to national benchmarks. 26% of residents lack health insurance, above the national average.

202

population

260.10

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

57553 ZIP code map

Cities in ZIP code 57553

Below are the cities the US Postal Service accepts for ZIP code 57553. Using any city not on this list may result in mail delivery delays.

City	Status
Milesville	Acceptable

Demographics updated 05/2026

Population
Total population	202
Population density	1 / sq mi
State FIPS	46
County FIPS	055

Geography
Land area	260.10 sq mi
Water area	3.36 sq mi
Latitude	44.4319
Longitude	-101.7719
Timezone	Mountain (MT)
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	46.2%	62.3%	41.7%
$50k – $100k	5.1%	16.6%	33.8%
$100k – $200k	48.7%	15.3%	20.1%
Over $200k	0.0%	5.8%	4.4%

Demographics & statistics

202

Population

People per sq mi

29.8

Median age

$137,143

Median household income

$57,130

Per capita income

$159,000

Median home value

Median monthly rent

90.7%

Home ownership

2.0%

Poverty rate

0.0%

Unemployment

Housing units

23.0%

Bachelor's or higher

Age distribution

Male Female

5–9

10–14

15–19

25–34

35–44

45–54

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	54	26.7%
18 and over	148	73.3%
65 and over	39	19.3%
Median age	29.8 years

Race & ethnicity

White 68.2%

American Indian / Alaska Native 17.3%

Hispanic or Latino 5.6%

Other race 5.6%

Two or more races 3.3%

Group	Count	%
White	146	68.2%
American Indian / Alaska Native	37	17.3%
Hispanic or Latino	12	5.6%
Other race	12	5.6%
Two or more races	7	3.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	46.2%	62.3%	41.7%
$50k – $100k	5.1%	16.6%	33.8%
$100k – $200k	48.7%	15.3%	20.1%
Over $200k	0.0%	5.8%	4.4%

$25k–$35k 9.3%

$35k–$50k 19.8%

$50k–$75k 7.0%

$100k–$150k 24.4%

$150k–$200k 29.1%

$200k+ 10.5%

Range	% of households
$25k–$35k	9.3%
$35k–$50k	19.8%
$50k–$75k	7.0%
$100k–$150k	24.4%
$150k–$200k	29.1%
$200k+	10.5%
Median income	$137,143

Housing

Home values

Under $50k 21.8%

$50k–$100k 7.7%

$100k–$150k 9.0%

$150k–$200k 50.0%

$300k–$500k 11.5%

Housing overview

Metric	Value
Median home value	$159,000
Median rent / month	$0
Owner occupied	90.7%
Renter occupied	9.3%
Vacant	4.4%
Single-family detached	84.4%
Large apartment buildings	0.0%
Mobile homes	15.6%
Median rooms	5.1
Avg household size (owned)	2.44

Year built

Era	%
2020 or later	0.0%
2010–2019	34.4%
2000–2009	0.0%
1990–1999	6.7%
1980–1989	16.7%
1970–1979	2.2%
1960–1969	10.0%
1950–1959	8.9%
1940–1949	4.4%
1939 or earlier	16.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	16.7%
2 bedrooms	25.6%
3 bedrooms	47.8%
4 bedrooms	10.0%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	9.3%
1 vehicle	8.1%
2 vehicles	8.1%
3 or more	74.4%

Heating fuel

Fuel type	%
Electricity	10.5%
Propane / LP gas	73.3%

Households & families

Household type	Count	%
Married-couple family	64	74.4%
Cohabiting couple	8	9.3%
Male householder, no spouse	6	7.0%
Female householder, no spouse	8	9.3%
Households with children under 18	23	26.7%
Households with seniors (65+)	24	27.9%
Average household size	2.35

Marital status

Status	Male	Female
Never married	15.2%	12.7%
Married	77.2%	77.2%
Separated	0.0%	0.0%
Widowed	0.0%	10.1%
Divorced	7.6%	0.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.0%

HS graduate 54.1%

Some college, no degree 9.5%

Associate's degree 13.5%

Bachelor's degree 23.0%

Graduate / professional 0.0%

Metric	%
HS diploma or higher	100.0%
Bachelor's or higher	23.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	13	28.3%
Elementary school	31	67.4%
High school	2	4.3%
College / grad school	0	0.0%

Employment

Industry of employment

Education & healthcare 57.1%

Construction 22.0%

Agriculture & mining 20.9%

Occupation

Category	%
Management, business & arts	60.4%
Service	25.3%
Sales & office	0.0%
Natural resources & construction	14.3%
Production & transportation	0.0%

Employment type

Type	%
Private sector	26.4%
Government	45.1%
Self-employed	28.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	79.1%
Carpool	0.0%
Public transit	0.0%
Walk	3.3%
Work from home	17.6%
Other means	0.0%
Avg commute (minutes)	56.5

Poverty

All people 2.0%

Under 18 years 0.0%

18 and over 2.7%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	27.9%
Retirement income	7.0%
Supplemental Security	9.3%
Cash public assistance	9.3%
Food stamps / SNAP	9.3%

Health indicators

Condition	%
Obesity	39.7%
High blood pressure	33.6%
High cholesterol	31.8%
Diabetes	10.4%
Heart disease	7.4%
Stroke	3.4%
Asthma	9.2%
Arthritis	24.8%
Kidney disease	3.1%
Pulmonary disease	7.3%
Cancer	6.6%

Behavior / access	%
Smoking	22.7%
Binge drinking	19.7%
No physical activity	26.3%
Less than 7 hrs sleep	31.2%
Depression	16.6%
Fair or poor health	13.7%
Poor mental health	11.5%
Poor physical health	10.5%
No health insurance	12.3%
Visited doctor (checkup)	74.0%
Visited dentist	62.2%
Cholesterol screening	89.1%
Teeth loss	16.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	0	0.0%

Disability	%
Any disability	7.9%
Under 18	0.0%
18–64 years	0.0%
65 and over	41.0%

Health insurance coverage

Type	%
Private insurance	72.3%
Public insurance	21.3%
No insurance	25.7%
Uninsured under 19	24.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	202	100.0%
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)	202	100.0%
Born in same state	202	100.0%
Born in different state	187	92.6%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Polish	44	21.8%
Italian	36	17.8%

Ancestry	Count	%
French	31	15.3%
Dutch	8	4%

Technology access

Metric	% of households
Computer access	42.6%
Internet access	90.7%

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

Frequently asked questions about ZIP code 57553

What city is ZIP code 57553 in?

ZIP code 57553 is primarily assigned to Milesville, South Dakota.

What county is ZIP code 57553 in?

ZIP code 57553 falls within Haakon County, South Dakota.

Is ZIP code 57553 mostly owner-occupied?

91% of occupied units in ZIP code 57553 are owner-occupied, well above the national average.

What is the median household income in ZIP code 57553?

The median household income in ZIP code 57553 is $137,143, above the national median of ~$75,000.

What is the typical home value in ZIP code 57553?

The median home value in ZIP code 57553 is $159,000.

What is the population of ZIP code 57553?

ZIP code 57553 has an estimated population of 202 residents, with a density of 1 people per square mile.

What timezone is ZIP code 57553 in?

ZIP code 57553 observes the MST timezone.