Glenham ZIP Codes — Walworth County, SD

There is one unique ZIP code in Glenham, South Dakota and it is 57631. Area code: 605.
1
ZIP codes
130.04
sq mi land
19.62
sq mi water
605
area code
Glenham, SD ZIP code map

About Glenham, SD

Glenham is a small, charming city located in South Dakota, encompassing a unique blend of rural beauty and community spirit. Nestled within Walworth County, Glenham offers a peaceful atmosphere and a close-knit environment for its residents. The city has a rich agricultural backdrop, which has significantly shaped its character and way of life.

Location & geography

Glenham is situated in the north-central part of South Dakota, within the expansive Walworth County. It is surrounded by several notable cities, including Mobridge, which lies approximately 22 miles to the south, and Aberdeen, located around 68 miles to the southeast. The city covers a total area of 149.66 square miles, comprising 130.04 square miles of land and 19.62 square miles of water, giving it a varied terrain with plenty of natural beauty.

Community & economy

The character of Glenham is marked by a friendly atmosphere where everyone knows their neighbors, fostering a strong sense of community. The local economy primarily revolves around agriculture, with farming and livestock production serving as critical industries for many residents. Daily life in Glenham offers a peaceful rural lifestyle, along with opportunities for outdoor activities such as fishing and hiking in the surrounding areas.

Transportation

The city is accessible via South Dakota Highway 20, which facilitates travel in and out of Glenham, connecting it to larger towns and cities nearby. The nearest major airport is Mobridge Regional Airport, approximately 22 miles to the south, which provides essential air travel services for residents. While there is no public transit system in place, the well-maintained highways make commuting relatively easy for those driving.

History

Glenham was founded during the early 20th century as a part of the expansion of agricultural settlements in South Dakota. Key industries such as wheat and cattle farming emerged, shaping the local economy and community development over the years. Notable events include the city’s participation in local fairs and agricultural exhibitions that highlight its rich farming heritage.

Did you know?

One surprising fact about Glenham is its scenic location amidst the rolling hills and waterways of the Dakotas, which offers residents and visitors abundant outdoor recreational opportunities. Additionally, the community is known for its commitment to preserving its agricultural roots while embracing modern advancements.

ZIP codes for Glenham, SD (1)
ZIP code City County Map
57631 Glenham Walworth View map

Demographics & statistics

348
Population
58.5
Median age
$49,300
Median household income
$44,816
Per capita income
$225,000
Median home value
$0
Median monthly rent
93.3%
Home ownership
3.7%
Poverty rate
14.4%
Unemployment
285
Housing units
32.5%
Bachelor's or higher

Age distribution

Male Female
3
Under 5
3
1
5–9
2
3
10–14
3
3
15–19
4
39
20–24
41
15
25–34
15
2
35–44
2
13
45–54
14
5
55–59
6
20
60–64
20
48
65–74
49
13
75–84
14
5
85+
5
← Male
Female →

Age summary

GroupCount%
Under 18216.0%
18 and over32794.0%
65 and over13438.5%
Median age58.5 years

Race & ethnicity

White 97.7%
Two or more races 2.3%
GroupCount%
White34097.7%
Two or more races82.3%

Household income

Under $10k 3.1%
$10k–$15k 3.1%
$15k–$25k 1.5%
$25k–$35k 8.2%
$35k–$50k 41.2%
$50k–$75k 10.8%
$75k–$100k 11.9%
$100k–$150k 12.9%
$150k–$200k 4.6%
$200k+ 2.6%
Range% of households
Under $10k3.1%
$10k–$15k3.1%
$15k–$25k1.5%
$25k–$35k8.2%
$35k–$50k41.2%
$50k–$75k10.8%
$75k–$100k11.9%
$100k–$150k12.9%
$150k–$200k4.6%
$200k+2.6%
Median income$49,300

Housing

Home values

Under $50k 14.9%
$50k–$100k 18.8%
$100k–$150k 6.1%
$150k–$200k 7.7%
$200k–$300k 8.8%
$300k–$500k 38.1%
$500k–$1M 5.5%

Housing overview

MetricValue
Median home value$225,000
Median rent / month$0
Owner occupied93.3%
Renter occupied6.7%
Vacant34.9%
Single-family detached66.8%
Large apartment buildings0.0%
Mobile homes33.2%
Median rooms6.1
Avg household size (owned)1.85

Year built

Era%
2020 or later2.7%
2010–201910.7%
2000–20098.7%
1990–199926.8%
1980–19894.4%
1970–197917.4%
1960–19692.0%
1950–19590.0%
1940–19496.7%
1939 or earlier20.5%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom6.7%
2 bedrooms14.1%
3 bedrooms44.0%
4 bedrooms28.2%
5+ bedrooms7.0%

Vehicles per household

Vehicles% of households
No vehicle0.0%
1 vehicle12.4%
2 vehicles63.4%
3 or more24.2%

Heating fuel

Fuel type%
Utility gas20.6%
Electricity26.3%
Propane / LP gas47.9%
Fuel oil3.6%
No fuel used1.5%

Households & families

Household typeCount%
Married-couple family13569.6%
Cohabiting couple00.0%
Male householder, no spouse3317.0%
Female householder, no spouse2613.4%
Households with children under 18115.7%
Households with seniors (65+)8242.3%
Average household size1.79

Marital status

StatusMaleFemale
Never married8.2%4.9%
Married79.4%81.0%
Separated0.0%0.0%
Widowed4.1%10.4%
Divorced8.2%3.7%

Education

Less than 9th grade 0.0%
Some HS, no diploma 6.9%
HS graduate 42.3%
Some college, no degree 13.4%
Associate's degree 4.9%
Bachelor's degree 19.5%
Graduate / professional 13.0%
Metric%
HS diploma or higher93.1%
Bachelor's or higher32.5%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool00.0%
Kindergarten00.0%
Elementary school918.4%
High school612.2%
College / grad school3469.4%

Employment

Industry of employment

Agriculture & mining 44.4%
Education & healthcare 20.8%
Construction 10.1%
Public administration 9.0%
Finance & real estate 4.5%
Arts, food & hospitality 4.5%
Manufacturing 2.8%
Transportation & utilities 2.8%
Wholesale trade 0.6%
Retail trade 0.6%

Occupation

Category%
Management, business & arts38.2%
Service16.3%
Sales & office1.1%
Natural resources & construction38.2%
Production & transportation6.2%

Employment type

Type%
Private sector53.4%
Government25.8%
Self-employed20.8%
Unpaid family workers0.0%

Commute

Method%
Drive alone71.3%
Carpool4.6%
Public transit0.0%
Walk2.9%
Other means6.3%
Avg commute (minutes)16.2

Poverty

All people 3.7%
Under 18 years 0.0%
18 and over 4.0%
Married-couple families 2.2%
Female-led households 0.0%

Income support

Source% of households
Social Security41.8%
Retirement income25.8%
Supplemental Security0.0%
Cash public assistance0.0%
Food stamps / SNAP0.0%

Health indicators

Condition%
High blood pressure34.9%
High cholesterol34.5%
Heart disease7.7%
Stroke3.3%
Asthma8.3%
Arthritis26.7%
Kidney disease3.1%
Pulmonary disease6.4%
Cancer8.3%
Behavior / access%
Binge drinking18.5%
No physical activity23.2%
Less than 7 hrs sleep28.0%
Fair or poor health11.4%
Poor mental health9.5%
Poor physical health9.1%
No health insurance11.0%
Visited doctor (checkup)76.2%
Visited dentist69.9%
Cholesterol screening91.0%
Teeth loss12.8%

Veterans & disability

VeteransCount%
Civilian veterans268.0%
Disability%
Any disability10.3%
Under 180.0%
18–64 years1.0%
65 and over25.4%

Health insurance coverage

Type%
Private insurance86.8%
Public insurance41.1%
Uninsured under 199.5%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only34298.3%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)348100.0%
Born in same state348100.0%
Born in different state28080.5%
Foreign born00.0%
Naturalized citizen00.0%
Not a US citizen00.0%

Ancestry

AncestryCount%
Italian5917%
Arab246.9%
Polish174.9%
AncestryCount%
French174.9%
German41.1%
English30.9%

Technology access

Metric% of households
Computer access55.7%
Internet access94.8%

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

Frequently asked questions
What ZIP codes does Glenham, SD have?
Glenham, SD has one ZIP code: 57631. 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 →