Delmont ZIP Codes — Douglas County, SD

There is one unique ZIP code in Delmont, South Dakota and it is 57330. Area code: 605.
1
ZIP codes
116.02
sq mi land
0.07
sq mi water
605
area code
Delmont, SD ZIP code map

About Delmont, SD

Delmont, South Dakota, is a small yet charming community located in Douglas County. Known for its serene environment, Delmont offers residents a tight-knit atmosphere while embracing the beautiful landscapes of the surrounding region. The city's unique character is highlighted by its rich history and welcoming community spirit.

Location & geography

Delmont is situated in the east-central part of South Dakota, serving as a serene escape in the heart of Douglas County. Nearby cities include Mitchell, located approximately 29 miles to the southwest, and Yankton, about 42 miles to the southeast. The city covers a land area of 116.02 square miles, complemented by a small water area of 0.07 square miles, featuring gently rolling terrain and vast open spaces.

Community & economy

The character of Delmont is defined by its friendly residents and a strong sense of community, making it a wonderful place for families and individuals alike. The local economy is primarily based on agriculture, with farming and related industries playing a significant role in daily life. Residents enjoy a slower pace of life, with local events and gatherings that foster connections among neighbors.

Transportation

Delmont is accessible via several local roads, and it is conveniently located near South Dakota Highway 34, which connects to other significant routes in the region. The nearest major airport is Mitchell Regional Airport, located about 30 miles to the southwest, providing access to larger city connections. Public transit options are limited, making personal vehicles the primary mode of transport for residents.

History

Delmont was founded in the late 19th century and has maintained its agricultural roots ever since. Key industries in the area have revolved around farming, contributing to the town's economy and culture. Over the years, Delmont has hosted several community events that celebrate its heritage and foster a sense of pride among its residents.

Did you know?

One surprising fact about Delmont is its unique status as one of South Dakota's lesser-known towns, often overshadowed by larger cities. Despite its small size, Delmont boasts a rich local history and a community dedicated to preserving its agricultural traditions.

ZIP codes for Delmont, SD (1)
ZIP code City County Map
57330 Delmont Douglas View map

Demographics & statistics

548
Population
36.6
Median age
$58,542
Median household income
$30,745
Per capita income
$150,000
Median home value
$578
Median monthly rent
79.8%
Home ownership
13.0%
Poverty rate
0.5%
Unemployment
182
Housing units
24.2%
Bachelor's or higher

Age distribution

Male Female
20
Under 5
22
30
5–9
33
15
10–14
16
20
15–19
23
10
20–24
12
21
25–34
23
34
35–44
39
7
45–54
8
15
55–59
16
34
60–64
38
31
65–74
36
17
75–84
19
4
85+
5
← Male
Female →

Age summary

GroupCount%
Under 1817932.7%
18 and over36967.3%
65 and over11220.4%
Median age36.6 years

Race & ethnicity

White 90.9%
Two or more races 5%
Hispanic or Latino 1.8%
American Indian / Alaska Native 1.4%
Other race 0.9%
GroupCount%
White50790.9%
Two or more races285%
Hispanic or Latino101.8%
American Indian / Alaska Native81.4%
Other race50.9%

Household income

Under $10k 6.2%
$10k–$15k 7.3%
$15k–$25k 11.2%
$25k–$35k 1.7%
$35k–$50k 17.4%
$50k–$75k 19.1%
$75k–$100k 6.7%
$100k–$150k 16.9%
$150k–$200k 5.6%
$200k+ 7.9%
Range% of households
Under $10k6.2%
$10k–$15k7.3%
$15k–$25k11.2%
$25k–$35k1.7%
$35k–$50k17.4%
$50k–$75k19.1%
$75k–$100k6.7%
$100k–$150k16.9%
$150k–$200k5.6%
$200k+7.9%
Median income$58,542

Housing

Home values

Under $50k 12.7%
$50k–$100k 26.8%
$100k–$150k 10.6%
$150k–$200k 26.8%
$200k–$300k 6.3%
$300k–$500k 4.9%
$500k–$1M 7.0%
$1M+ 4.9%

Housing overview

MetricValue
Median home value$150,000
Median rent / month$578
Owner occupied79.8%
Renter occupied20.2%
Vacant18.3%
Single-family detached94.0%
Large apartment buildings0.0%
Mobile homes4.1%
Median rooms6.8
Avg household size (owned)2.92

Year built

Era%
2020 or later0.0%
2010–201911.9%
2000–20091.8%
1990–19996.9%
1980–19893.7%
1970–19791.8%
1960–19696.9%
1950–195911.0%
1940–194917.9%
1939 or earlier38.1%

Bedrooms

Size% of units
No bedroom (studio)1.4%
1 bedroom0.5%
2 bedrooms15.6%
3 bedrooms45.4%
4 bedrooms27.5%
5+ bedrooms9.6%

Vehicles per household

Vehicles% of households
No vehicle0.0%
1 vehicle20.2%
2 vehicles20.8%
3 or more59.0%

Heating fuel

Fuel type%
Utility gas5.1%
Electricity44.9%
Propane / LP gas39.9%
Fuel oil4.5%
Wood2.2%
No fuel used0.6%

Households & families

Household typeCount%
Married-couple family10458.4%
Cohabiting couple52.8%
Male householder, no spouse4424.7%
Female householder, no spouse2514.0%
Households with children under 186033.7%
Households with seniors (65+)7341.0%
Average household size2.85

Marital status

StatusMaleFemale
Never married26.7%18.5%
Married58.9%59.5%
Separated0.0%0.0%
Widowed5.0%17.2%
Divorced9.4%4.7%

Education

Less than 9th grade 6.3%
Some HS, no diploma 4.3%
HS graduate 25.6%
Some college, no degree 27.7%
Associate's degree 11.8%
Bachelor's degree 17.6%
Graduate / professional 6.6%
Metric%
HS diploma or higher89.3%
Bachelor's or higher24.2%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool1912.5%
Kindergarten138.6%
Elementary school7750.7%
High school4026.3%
College / grad school32.0%

Employment

Industry of employment

Education & healthcare 35.5%
Agriculture & mining 26.6%
Retail trade 9.8%
Construction 8.9%
Public administration 8.9%
Other services 3.7%
Transportation & utilities 2.8%
Professional & management 1.9%
Manufacturing 1.4%
Wholesale trade 0.5%

Occupation

Category%
Management, business & arts48.1%
Service21.5%
Sales & office7.0%
Natural resources & construction13.1%
Production & transportation10.3%

Employment type

Type%
Private sector47.2%
Government22.4%
Self-employed30.4%
Unpaid family workers0.0%

Commute

Method%
Drive alone75.2%
Carpool0.0%
Public transit0.0%
Walk17.8%
Other means0.9%
Avg commute (minutes)19.5

Poverty

All people 13.0%
Under 18 years 8.9%
18 and over 14.6%
Married-couple families 1.9%
Female-led households 0.0%

Income support

Source% of households
Social Security52.2%
Retirement income20.2%
Supplemental Security2.2%
Cash public assistance2.2%
Food stamps / SNAP3.4%

Health indicators

Condition%
High blood pressure34.4%
High cholesterol34.2%
Heart disease8.3%
Stroke3.6%
Asthma8.9%
Arthritis26.6%
Kidney disease3.3%
Pulmonary disease6.9%
Cancer8.3%
Behavior / access%
Binge drinking18.0%
No physical activity24.2%
Less than 7 hrs sleep28.3%
Fair or poor health12.6%
Poor mental health10.5%
Poor physical health9.7%
No health insurance12.3%
Visited doctor (checkup)76.4%
Visited dentist67.3%
Cholesterol screening90.0%
Teeth loss15.0%

Veterans & disability

VeteransCount%
Civilian veterans3710.0%
Disability%
Any disability12.4%
Under 180.0%
18–64 years10.5%
65 and over36.6%

Health insurance coverage

Type%
Private insurance71.4%
Public insurance31.0%
Uninsured under 1921.8%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only50692.3%
Spanish204.0%
Other Indo-European00.0%
Asian & Pacific Islander204.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)548100.0%
Born in same state548100.0%
Born in different state48187.8%
Foreign born00.0%
Naturalized citizen00.0%
Not a US citizen00.0%

Ancestry

AncestryCount%
Italian6511.9%
Polish397.1%
French336%
AncestryCount%
Dutch203.6%
Arab112%
English61.1%

Technology access

Metric% of households
Computer access32.5%
Internet access92.1%

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

Frequently asked questions
What ZIP codes does Delmont, SD have?
Delmont, SD has one ZIP code: 57330. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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