Custer ZIP Code List — Custer County, SD

There is one unique ZIP code in Custer, South Dakota and it is 57730. Area code: 605.

ZIP codes

516.16

sq mi land

0.61

sq mi water

605

area code

Custer, SD ZIP code map

About Custer, SD

Custer, South Dakota, is a small yet vibrant city located in the western part of the state. Nestled in the scenic Custer County, it serves as a gateway to the breathtaking Black Hills region. The city is well-known for its rich history and stunning natural beauty, drawing tourists from around the country.

Location & geography

Custer is situated approximately 40 miles southwest of Rapid City, the second-largest city in South Dakota, and about 50 miles northeast of Hot Springs. The city covers a vast area of 516.16 square miles, with a charming water area of 0.61 square miles, contributing to its picturesque landscape. The terrain includes rolling hills and dense forests, making it a haven for outdoor enthusiasts.

Community & economy

Custer has a friendly, welcoming community that embraces its residents and visitors alike. The local economy is supported by tourism, agriculture, ranching, and small businesses, providing a blend of employment opportunities. Daily life in Custer includes festivals, local markets, and various outdoor recreational activities, all contributing to a strong sense of community spirit.

Transportation

Custer is accessible via U.S. Highway 16, which connects the city to other regional destinations. The nearest named airport is the Rapid City Regional Airport, approximately 50 miles away, providing commercial flights to major cities. Local transit options are limited, but the city’s size makes it easy to navigate by car or on foot.

History

Custer was founded in the mid-1870s during the gold rush era, named after General George Armstrong Custer, who explored the Black Hills region. The discovery of gold significantly influenced the area's development, leading to the establishment of mining operations and settlement growth. Over the years, Custer has evolved into a tourism hub, with notable events and attractions such as the annual Custer County Fair.

Did you know?

One surprising fact about Custer, SD, is that it is home to the Custer State Park, one of the largest state parks in the U.S., renowned for its diverse wildlife and scenic drives. Additionally, Custer celebrates its rich Native American history and heritage through various cultural events throughout the year.

ZIP codes for Custer, SD (1)

ZIP code	City	County	Map
57730	Custer	Custer	View map

Demographics & statistics

5,809

Population

57.0

Median age

$76,667

Median household income

$41,027

Per capita income

$286,300

Median home value

$954

Median monthly rent

81.0%

Home ownership

10.1%

Poverty rate

2.7%

Unemployment

2,825

Housing units

33.9%

Bachelor's or higher

Age distribution

Male Female

104

Under 5

115

133

5–9

149

10–14

112

15–19

124

107

20–24

119

265

25–34

296

228

35–44

253

314

45–54

350

186

55–59

207

341

60–64

380

564

65–74

629

249

75–84

278

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	816	14.0%
18 and over	4,993	86.0%
65 and over	1,861	32.0%
Median age	57.0 years

Race & ethnicity

White 91.9%

Two or more races 4%

American Indian / Alaska Native 2.5%

Asian 0.5%

Black or African American 0.4%

Hispanic or Latino 0.4%

Other race 0.3%

Group	Count	%
White	5,357	91.9%
Two or more races	235	4%
American Indian / Alaska Native	148	2.5%
Asian	28	0.5%
Black or African American	23	0.4%
Hispanic or Latino	22	0.4%
Other race	18	0.3%

Household income

Under $10k 3.7%

$10k–$15k 4.7%

$15k–$25k 9.1%

$25k–$35k 5.4%

$35k–$50k 8.1%

$50k–$75k 17.5%

$75k–$100k 20.1%

$100k–$150k 17.7%

$150k–$200k 8.4%

$200k+ 5.1%

Range	% of households
Under $10k	3.7%
$10k–$15k	4.7%
$15k–$25k	9.1%
$25k–$35k	5.4%
$35k–$50k	8.1%
$50k–$75k	17.5%
$75k–$100k	20.1%
$100k–$150k	17.7%
$150k–$200k	8.4%
$200k+	5.1%
Median income	$76,667

Housing

Home values

Under $50k 7.1%

$50k–$100k 3.0%

$100k–$150k 12.2%

$150k–$200k 6.8%

$200k–$300k 25.6%

$300k–$500k 22.3%

$500k–$1M 16.9%

$1M+ 6.1%

Housing overview

Metric	Value
Median home value	$286,300
Median rent / month	$954
Owner occupied	81.0%
Renter occupied	19.0%
Vacant	24.0%
Single-family detached	76.8%
Large apartment buildings	1.8%
Mobile homes	10.7%
Median rooms	5.6
Avg household size (owned)	2.29

Year built

Era	%
2020 or later	1.1%
2010–2019	8.1%
2000–2009	21.1%
1990–1999	9.3%
1980–1989	7.8%
1970–1979	17.0%
1960–1969	3.0%
1950–1959	8.4%
1940–1949	7.9%
1939 or earlier	16.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.4%
1 bedroom	11.8%
2 bedrooms	25.6%
3 bedrooms	42.6%
4 bedrooms	13.7%
5+ bedrooms	5.9%

Vehicles per household

Vehicles	% of households
No vehicle	0.9%
1 vehicle	22.2%
2 vehicles	37.3%
3 or more	39.6%

Heating fuel

Fuel type	%
Utility gas	3.6%
Electricity	41.1%
Propane / LP gas	38.6%
Fuel oil	0.6%
Wood	13.9%

Households & families

Household type	Count	%
Married-couple family	1,481	59.1%
Cohabiting couple	202	8.1%
Male householder, no spouse	321	12.8%
Female householder, no spouse	504	20.1%
Households with children under 18	528	21.1%
Households with seniors (65+)	1,217	48.5%
Average household size	2.22

Marital status

Status	Male	Female
Never married	23.3%	18.1%
Married	63.0%	58.9%
Separated	2.3%	0.4%
Widowed	3.6%	9.5%
Divorced	7.9%	13.1%

Education

Less than 9th grade 3.7%

Some HS, no diploma 2.9%

HS graduate 29.8%

Some college, no degree 22.3%

Associate's degree 7.4%

Bachelor's degree 22.0%

Graduate / professional 11.9%

Metric	%
HS diploma or higher	93.4%
Bachelor's or higher	33.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	21	2.8%
Kindergarten	67	8.9%
Elementary school	320	42.7%
High school	232	31.0%
College / grad school	109	14.6%

Employment

Industry of employment

Education & healthcare 18.0%

Arts, food & hospitality 16.9%

Professional & management 12.0%

Construction 10.8%

Agriculture & mining 7.0%

Transportation & utilities 6.9%

Retail trade 6.4%

Manufacturing 6.3%

Public administration 5.9%

Finance & real estate 5.7%

Other services 4.1%

Occupation

Category	%
Management, business & arts	39.3%
Service	18.3%
Sales & office	20.5%
Natural resources & construction	11.0%
Production & transportation	10.9%

Employment type

Type	%
Private sector	69.8%
Government	19.9%
Self-employed	10.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	77.1%
Carpool	5.2%
Public transit	0.0%
Walk	3.0%
Other means	2.2%
Avg commute (minutes)	28.8

Poverty

All people 10.1%

Under 18 years 12.2%

18 and over 9.7%

Married-couple families 5.9%

Female-led households 22.5%

Income support

Source	% of households
Social Security	50.7%
Retirement income	38.7%
Supplemental Security	5.3%
Cash public assistance	3.6%
Food stamps / SNAP	4.7%

Health indicators

Condition	%
High blood pressure	38.3%
High cholesterol	36.2%
Heart disease	8.7%
Stroke	3.8%
Asthma	8.9%
Arthritis	29.5%
Kidney disease	3.6%
Pulmonary disease	7.3%
Cancer	9.2%

Behavior / access	%
Binge drinking	16.6%
No physical activity	24.5%
Less than 7 hrs sleep	26.8%
Fair or poor health	12.8%
Poor mental health	9.8%
Poor physical health	10.1%
No health insurance	10.7%
Visited doctor (checkup)	78.8%
Visited dentist	68.5%
Cholesterol screening	91.9%
Teeth loss	13.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	732	14.7%

Disability	%
Any disability	21.6%
Under 18	2.5%
18–64 years	17.2%
65 and over	37.9%

Health insurance coverage

Type	%
Private insurance	74.2%
Public insurance	40.4%
Uninsured under 19	23.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	5,590	96.2%
Spanish	33	0.6%
Other Indo-European	29	0.5%
Asian & Pacific Islander	4	0.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	5,735	98.7%
Born in same state	5,713	98.3%
Born in different state	2,395	41.2%
Foreign born	22	0.4%
Naturalized citizen	74	1.3%
Not a US citizen	58	78.4%

Ancestry

Ancestry	Count	%
Italian	1,034	17.8%
French	740	12.7%
Polish	422	7.3%
English	243	4.2%
Arab	186	3.2%

Ancestry	Count	%
Dutch	146	2.5%
German	43	0.7%
Irish	28	0.5%
Norwegian	12	0.2%

Technology access

Metric	% of households
Computer access	43.2%
Internet access	93.9%

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

Frequently asked questions

What is the ZIP code for Custer, SD?

Custer, SD has one ZIP code: 57730.

What is the main ZIP code for Custer, SD?

The primary ZIP code for Custer, SD is 57730. The city uses area code 605 for phone service.

What county is Custer, SD in?

Custer is located in Custer County, South Dakota.

How many ZIP codes are in Custer, SD?

Custer, SD has 1 ZIP code.

What is the ZIP code for downtown Custer and the area around the Custer County Courthouse?

The downtown Custer area, including the Custer County Courthouse and main business district, is located in ZIP code 57730.

What ZIP code covers the Custer State Park gateway area and lodging facilities near Custer, SD?

Accommodations and facilities serving visitors to nearby Custer State Park are located in ZIP code 57730, which serves the town of Custer.