Roslyn ZIP Codes — Day County, SD

There is one unique ZIP code in Roslyn, South Dakota and it is 57261. Area code: 605.
1
ZIP codes
67.50
sq mi land
8.83
sq mi water
605
area code
Roslyn, SD ZIP code map

About Roslyn, SD

Roslyn is a charming small town located in South Dakota, known for its friendly atmosphere and community spirit. Nestled in Day County, this city offers a peaceful retreat for residents and visitors alike. With a rich history and a commitment to preserving its rural character, Roslyn reflects the essence of small-town America.

Location & geography

Geographically, Roslyn is situated approximately 30 miles northeast of the bustling city of Watertown, making it accessible while maintaining its rural charm. The landscape encompasses 67.50 square miles of land and includes 8.83 square miles of water, enhancing the scenic beauty of the area. The surrounding terrain is predominantly flat, defined by open fields and small bodies of water, ideal for outdoor activities.

Community & economy

The character of Roslyn revolves around a tight-knit community where neighbors quickly become friends. Agriculture plays a significant role in the local economy, supplemented by family-owned businesses that cater to the needs of residents. Daily life in Roslyn includes community events, local gatherings, and an emphasis on outdoor experiences, allowing residents to connect with nature and each other.

Transportation

Transportation in and out of Roslyn is centered around South Dakota State Highway 25, which facilitates travel to nearby towns and cities. The nearest major airport is Watertown Regional Airport, located approximately 30 miles away, providing access to regional air travel. Local travel is primarily by car, with a network of county roads linking the town with its neighbors.

History

Roslyn was founded in the late 19th century and has a storied past tied to agriculture and local trade. The town developed key industries around farming and livestock, which continue to influence its economy today. Notable events in Roslyn's history include annual festivals celebrating its heritage and contributions to the surrounding agricultural landscape.

Did you know?

One surprising fact about Roslyn is its commitment to preserving its historical sites, which showcases its rich cultural heritage. Additionally, the area is known for its tranquil environment that attracts visitors seeking to escape the hustle and bustle of city life.

ZIP codes for Roslyn, SD (1)
ZIP code City County Map
57261 Roslyn Day View map

Demographics & statistics

296
Population
61.0
Median age
$63,438
Median household income
$49,828
Per capita income
$101,800
Median home value
$433
Median monthly rent
73.1%
Home ownership
2.3%
Poverty rate
0.0%
Unemployment
113
Housing units
16.6%
Bachelor's or higher

Age distribution

Male Female
9
Under 5
10
5
5–9
5
7
10–14
9
5
15–19
5
12
25–34
15
11
35–44
13
9
45–54
11
9
55–59
11
5
60–64
5
23
65–74
28
28
75–84
33
13
85+
15
← Male
Female →

Age summary

GroupCount%
Under 185016.9%
18 and over24683.1%
65 and over14047.3%
Median age61.0 years

Race & ethnicity

White 89.5%
American Indian / Alaska Native 5.4%
Two or more races 5.1%
GroupCount%
White26589.5%
American Indian / Alaska Native165.4%
Two or more races155.1%

Household income

$10k–$15k 0.8%
$15k–$25k 16.0%
$25k–$35k 11.8%
$35k–$50k 20.2%
$50k–$75k 7.6%
$75k–$100k 14.3%
$100k–$150k 24.4%
$200k+ 5.0%
Range% of households
$10k–$15k0.8%
$15k–$25k16.0%
$25k–$35k11.8%
$35k–$50k20.2%
$50k–$75k7.6%
$75k–$100k14.3%
$100k–$150k24.4%
$200k+5.0%
Median income$63,438

Housing

Home values

Under $50k 17.2%
$50k–$100k 32.2%
$100k–$150k 14.9%
$150k–$200k 18.4%
$200k–$300k 16.1%
$500k–$1M 1.1%

Housing overview

MetricValue
Median home value$101,800
Median rent / month$433
Owner occupied73.1%
Renter occupied26.9%
Vacant17.9%
Single-family detached86.2%
Large apartment buildings0.0%
Mobile homes5.5%
Median rooms5.4
Avg household size (owned)2.10

Year built

Era%
2020 or later0.0%
2010–20190.0%
2000–20092.1%
1990–19990.0%
1980–19894.1%
1970–197922.1%
1960–196917.2%
1950–19592.1%
1940–194921.4%
1939 or earlier31.0%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom9.0%
2 bedrooms42.8%
3 bedrooms18.6%
4 bedrooms29.0%
5+ bedrooms0.7%

Vehicles per household

Vehicles% of households
No vehicle0.0%
1 vehicle16.0%
2 vehicles27.7%
3 or more56.3%

Heating fuel

Fuel type%
Utility gas1.7%
Electricity14.3%
Propane / LP gas55.5%
Fuel oil15.1%
Wood13.4%

Households & families

Household typeCount%
Married-couple family7966.4%
Cohabiting couple00.0%
Male householder, no spouse2218.5%
Female householder, no spouse1815.1%
Households with children under 182420.2%
Households with seniors (65+)6252.1%
Average household size2.16

Marital status

StatusMaleFemale
Never married14.8%12.5%
Married68.7%56.6%
Separated0.0%0.0%
Widowed7.0%18.4%
Divorced9.6%12.5%

Education

Less than 9th grade 4.6%
Some HS, no diploma 10.0%
HS graduate 51.0%
Some college, no degree 10.8%
Associate's degree 7.1%
Bachelor's degree 12.9%
Graduate / professional 3.7%
Metric%
HS diploma or higher85.5%
Bachelor's or higher16.6%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool511.6%
Kindergarten12.3%
Elementary school2455.8%
High school1023.3%
College / grad school37.0%

Employment

Industry of employment

Retail trade 18.3%
Manufacturing 17.4%
Education & healthcare 16.5%
Finance & real estate 15.6%
Other services 7.3%
Wholesale trade 6.4%
Agriculture & mining 5.5%
Construction 4.6%
Professional & management 4.6%
Transportation & utilities 3.7%

Occupation

Category%
Management, business & arts15.6%
Service14.7%
Sales & office16.5%
Natural resources & construction14.7%
Production & transportation38.5%

Employment type

Type%
Private sector82.6%
Government4.6%
Self-employed11.0%
Unpaid family workers1.8%

Commute

Method%
Drive alone73.4%
Carpool10.1%
Public transit0.0%
Walk4.6%
Other means0.0%
Avg commute (minutes)25.1

Poverty

All people 2.3%
Under 18 years 6.0%
18 and over 1.4%
Married-couple families 0.0%
Female-led households 18.2%

Income support

Source% of households
Social Security50.4%
Retirement income17.6%
Supplemental Security5.0%
Cash public assistance0.0%
Food stamps / SNAP3.4%

Health indicators

Condition%
High blood pressure41.0%
High cholesterol37.2%
Heart disease10.7%
Stroke4.8%
Asthma8.7%
Arthritis33.1%
Kidney disease4.3%
Pulmonary disease8.5%
Cancer10.6%
Behavior / access%
Binge drinking14.4%
No physical activity28.0%
Less than 7 hrs sleep27.0%
Fair or poor health14.6%
Poor mental health9.4%
Poor physical health11.0%
No health insurance11.6%
Visited doctor (checkup)79.2%
Visited dentist65.0%
Cholesterol screening91.9%
Teeth loss15.6%

Veterans & disability

VeteransCount%
Civilian veterans2510.2%
Disability%
Any disability19.5%
Under 1816.0%
18–64 years9.4%
65 and over31.7%

Health insurance coverage

Type%
Private insurance63.4%
Public insurance52.1%
Uninsured under 1920.0%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only27793.6%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)296100.0%
Born in same state296100.0%
Born in different state20669.6%
Foreign born00.0%
Naturalized citizen00.0%
Not a US citizen00.0%

Ancestry

AncestryCount%
Polish9231.1%
Italian124.1%
Arab113.7%
AncestryCount%
Dutch62%
English31%
French31%

Technology access

Metric% of households
Computer access40.2%
Internet access77.3%

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

Frequently asked questions
What ZIP codes does Roslyn, SD have?
Roslyn, SD has one ZIP code: 57261. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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