Grenville ZIP Codes — Day County, SD

There is one unique ZIP code in Grenville, South Dakota and it is 57239. Area code: 605.
1
ZIP codes
44.83
sq mi land
2.49
sq mi water
605
area code
Grenville, SD ZIP code map

About Grenville, SD

Grenville is a small city located in South Dakota, specifically within Day County. Known for its tranquil environment and close-knit community, Grenville offers a unique blend of rural charm and accessibility. The city is an inviting place for visitors looking for a peaceful escape in the great outdoors.

Location & geography

Situated in the northeastern part of South Dakota, Grenville is approximately 30 miles from the larger town of Webster and 20 miles from Bristol. The city covers a total area of 44.83 square miles, of which 2.49 square miles is water, contributing to its scenic landscapes. The terrain is characterized by its spacious expanses, making it ideal for outdoor activities such as fishing, hunting, and hiking.

Community & economy

Grenville's community is known for its welcoming atmosphere and strong sense of belonging among residents. The local economy is driven predominantly by agriculture, with farming being a major contributor to daily life and the local culture. Amenities in the city cater to the essential needs of its residents while encouraging a vibrant social life centered around community events.

Transportation

Grenville is accessible via South Dakota Highway 25, which connects the city to neighboring communities and larger regional highways. For air travel, the nearest named airport is the Watertown Regional Airport, located roughly 45 miles south of Grenville. Public transportation options are limited, and most residents rely on personal vehicles for commuting.

History

Grenville was founded in the late 19th century and has maintained its small-town charm through the years. The key industries over time have included agriculture and local businesses, which have shaped the community's development. Notable events in Grenville's history often revolve around seasonal festivals that celebrate local culture and heritage.

Did you know?

One little-known fact about Grenville is that it is home to several long-standing family-owned farms which have been passed down through generations. The city also boasts beautiful waterside parks that attract fishing enthusiasts and nature lovers alike.

ZIP codes for Grenville, SD (1)
ZIP code City County Map
57239 Grenville Day View map

Demographics & statistics

387
Population
60.7
Median age
$85,938
Median household income
$39,045
Per capita income
$321,400
Median home value
$0
Median monthly rent
90.8%
Home ownership
7.0%
Poverty rate
0.0%
Unemployment
469
Housing units
29.6%
Bachelor's or higher

Age distribution

Male Female
4
Under 5
3
9
5–9
7
8
10–14
7
12
15–19
9
4
25–34
4
7
35–44
6
29
45–54
23
31
55–59
24
20
60–64
16
50
65–74
39
38
75–84
30
4
85+
3
← Male
Female →

Age summary

GroupCount%
Under 185514.2%
18 and over33285.8%
65 and over16442.4%
Median age60.7 years

Race & ethnicity

White 98%
Hispanic or Latino 1%
Other race 1%
GroupCount%
White38398%
Hispanic or Latino41%
Other race41%

Household income

Under $10k 5.2%
$10k–$15k 4.0%
$15k–$25k 1.2%
$25k–$35k 6.4%
$35k–$50k 12.1%
$50k–$75k 16.8%
$75k–$100k 24.9%
$100k–$150k 13.3%
$150k–$200k 9.2%
$200k+ 6.9%
Range% of households
Under $10k5.2%
$10k–$15k4.0%
$15k–$25k1.2%
$25k–$35k6.4%
$35k–$50k12.1%
$50k–$75k16.8%
$75k–$100k24.9%
$100k–$150k13.3%
$150k–$200k9.2%
$200k+6.9%
Median income$85,938

Housing

Home values

Under $50k 14.6%
$50k–$100k 5.7%
$100k–$150k 5.1%
$150k–$200k 7.6%
$200k–$300k 14.0%
$300k–$500k 17.8%
$500k–$1M 27.4%
$1M+ 7.6%

Housing overview

MetricValue
Median home value$321,400
Median rent / month$0
Owner occupied90.8%
Renter occupied9.2%
Vacant64.3%
Single-family detached95.1%
Large apartment buildings0.0%
Mobile homes4.1%
Median rooms5.1
Avg household size (owned)2.32

Year built

Era%
2020 or later1.0%
2010–201913.0%
2000–200924.3%
1990–19996.4%
1980–19891.6%
1970–197910.9%
1960–19696.0%
1950–19595.2%
1940–194912.2%
1939 or earlier19.4%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom1.0%
2 bedrooms30.3%
3 bedrooms38.1%
4 bedrooms24.3%
5+ bedrooms6.2%

Vehicles per household

Vehicles% of households
No vehicle4.0%
1 vehicle11.0%
2 vehicles43.9%
3 or more41.0%

Heating fuel

Fuel type%
Electricity34.1%
Propane / LP gas62.4%
Fuel oil1.2%
Wood2.3%

Households & families

Household typeCount%
Married-couple family10359.5%
Cohabiting couple148.1%
Male householder, no spouse3922.5%
Female householder, no spouse179.8%
Households with children under 18158.7%
Households with seniors (65+)10057.8%
Average household size2.24

Marital status

StatusMaleFemale
Never married20.5%13.9%
Married61.5%75.0%
Separated0.0%0.0%
Widowed8.3%8.3%
Divorced9.8%2.8%

Education

Less than 9th grade 5.8%
Some HS, no diploma 2.1%
HS graduate 39.0%
Some college, no degree 8.5%
Associate's degree 14.9%
Bachelor's degree 20.4%
Graduate / professional 9.1%
Metric%
HS diploma or higher92.1%
Bachelor's or higher29.6%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool612.2%
Kindergarten00.0%
Elementary school1632.7%
High school1734.7%
College / grad school1020.4%

Employment

Industry of employment

Retail trade 20.0%
Finance & real estate 16.1%
Education & healthcare 16.1%
Agriculture & mining 14.8%
Manufacturing 10.3%
Arts, food & hospitality 7.7%
Construction 7.1%
Transportation & utilities 4.5%
Professional & management 2.6%
Public administration 0.6%

Occupation

Category%
Management, business & arts38.7%
Service6.5%
Sales & office29.0%
Natural resources & construction15.5%
Production & transportation10.3%

Employment type

Type%
Private sector58.1%
Government10.3%
Self-employed27.7%
Unpaid family workers3.9%

Commute

Method%
Drive alone66.7%
Carpool5.9%
Public transit0.0%
Walk2.0%
Other means3.3%
Avg commute (minutes)16.4

Poverty

All people 7.0%
Under 18 years 0.0%
18 and over 8.1%
Married-couple families 0.0%
Female-led households 100.0%

Income support

Source% of households
Social Security50.9%
Retirement income52.6%
Supplemental Security0.0%
Cash public assistance0.0%
Food stamps / SNAP0.0%

Health indicators

Condition%
High blood pressure40.9%
High cholesterol38.2%
Heart disease10.3%
Stroke4.5%
Asthma8.8%
Arthritis32.0%
Kidney disease4.0%
Pulmonary disease8.7%
Cancer9.6%
Behavior / access%
Binge drinking15.2%
No physical activity26.5%
Less than 7 hrs sleep27.7%
Fair or poor health14.6%
Poor mental health9.5%
Poor physical health11.2%
No health insurance11.2%
Visited doctor (checkup)78.5%
Visited dentist64.8%
Cholesterol screening92.2%
Teeth loss15.0%

Veterans & disability

VeteransCount%
Civilian veterans7121.4%
Disability%
Any disability29.2%
Under 1810.9%
18–64 years4.8%
65 and over60.4%

Health insurance coverage

Type%
Private insurance79.6%
Public insurance44.4%
Uninsured under 1910.9%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only38098.2%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)387100.0%
Born in same state387100.0%
Born in different state27871.8%
Foreign born00.0%
Naturalized citizen00.0%
Not a US citizen00.0%

Ancestry

AncestryCount%
Polish5213.4%
French184.7%
Italian174.4%
AncestryCount%
German143.6%
Dutch82.1%
English61.6%

Technology access

Metric% of households
Computer access44.7%
Internet access96.0%

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

Frequently asked questions
What ZIP codes does Grenville, SD have?
Grenville, SD has one ZIP code: 57239. Each ZIP code serves a distinct delivery area within the city and surrounding region.
Need the complete South Dakota ZIP code database? Download all SD ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →