Zip code 57730: Custer, South Dakota

Q: What city is zip code 57730?

57730 is assigned to Custer, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 57730 in?

57730 is mostly in Custer County, but it extends into 1 other county.

Q: What is the population of 57730?

About 5,596 people live in 57730, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 57730?

The median household income in 57730 is $83,469.

Q: What zip codes are near 57730?

The closest zip codes to 57730 are 57773, 57751, 57745, 57702, 57738.

Residential delivery areaCuster CountyMountain Time

Population

5,596

Median household income

$83K

U.S. $81K

Median home value

$379K

U.S. $333K

Median rent

$1,087/mo

U.S. $1,413

Median age

57.9

U.S. 38.9

Land area

516 sq mi

11 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 57730

57730 is a rural zip code in Custer, South Dakota (Custer County), covering 516 sq mi of land. About 5,596 people live here, or 11 per square mile. The median resident is 57.9 years old, compared with 38.9 nationally.

The median household earns $83,469 a year, close to the national median of $80,734. 10% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $378,800, or 4.5 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 80% of occupied homes are lived in by their owners, and renters pay a median of $1,087 a month.

34% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 26.1 minutes each way, and 14% of workers work from home. The most common jobs among working residents are in healthcare; management; and office and administrative support. 20% of them are self-employed (U.S.: 10%).

How 57730 compares

Sorted from highest to lowest national percentile

Median age57.9
99th
U.S. 38.9 · SD 3825th of 347 in SD
Residents 65 and older36.4%
99th
U.S. 17.2% · SD 18%23rd of 347 in SD
Self-employed workers19.6%
97th
U.S. 10% · SD 12.1%152nd of 347 in SD
Veterans13.2%
96th
U.S. 6.2% · SD 7.9%34th of 347 in SD
Healthcare workers15.6%
96th
U.S. 9.7% · SD 10.5%31st of 347 in SD
Housing vacancy18.3%
92nd
U.S. 10.1% · SD 10.5%137th of 344 in SD
Government workers19.8%
84th
U.S. 14.5% · SD 15.8%110th of 347 in SD
Uninsured rate12.8%
83rd
WeaknessU.S. 8.4% · SD 9%82nd of 347 in SD
Income inequality (Gini)0.478
80th
WeaknessU.S. 0.483 · SD 0.44965th of 343 in SD
Homeownership rate80.4%
79th
U.S. 65.2% · SD 68.6%162nd of 344 in SD
Per capita income$50,472
73rd
U.S. $44,673 · SD $40,55049th of 347 in SD
Median home value$378,800
59th
U.S. $332,700 · SD $257,40014th of 302 in SD
Work from home13.9%
56th
U.S. 15.1% · SD 9.7%119th of 347 in SD
Bachelor's degree or higher34%
55th
U.S. 35.7% · SD 31.9%65th of 346 in SD
Median household income$83,469
54th
U.S. $80,734 · SD $75,081109th of 327 in SD
Average commute26.1 min
50th
U.S. 26.4 min · SD 17.8 min60th of 330 in SD
Poverty rate10%
45th
U.S. 12.5% · SD 11.9%149th of 344 in SD
Broadband access91.6%
45th
U.S. 91% · SD 89.6%103rd of 344 in SD
Median earnings per worker$45,120
40th
U.S. $49,666 · SD $46,539181st of 345 in SD
Median gross rent$1,087
27th
U.S. $1,413 · SD $94626th of 243 in SD
Tech workers1.3%
18th
U.S. 3.8% · SD 2.3%99th of 347 in SD
Diversity index24.2
17th
U.S. 61.4 · SD 35.4112th of 347 in SD
Foreign-born residents2.8%
17th
U.S. 14.1% · SD 4%73rd of 347 in SD
Population5,596
9th
U.S. 334,922,499 · SD 907,42830th of 347 in SD
Residents under 1813.6%
6th
U.S. 22% · SD 24.2%307th of 347 in SD
Unemployment rate1.8%
4th
StrengthU.S. 5.2% · SD 2.9%146th of 347 in SD
Rent-burdened renters20.4%
2nd
StrengthU.S. 51.1% · SD 39.8%208th of 313 in SD
Population density11/sq mi
1st
U.S. 95/sq mi · SD 12/sq mi105th of 347 in SD

Measure	57730	Custer	SD	U.S.	National percentile	Rank in SD
Median age	57.9	57.6	38	38.9	99th	25th of 347
Residents 65 and older	36.4%	33.7%	18%	17.2%	99th	23rd of 347
Self-employed workers	19.6%	18%	12.1%	10%	97th	152nd of 347
Veterans	13.2%	13%	7.9%	6.2%	96th	34th of 347
Healthcare workers	15.6%	15.1%	10.5%	9.7%	96th	31st of 347
Housing vacancy	18.3%	15.9%	10.5%	10.1%	92nd	137th of 344
Government workers	19.8%	19.6%	15.8%	14.5%	84th	110th of 347
Uninsured rateWeakness	12.8%	10.8%	9%	8.4%	83rd	82nd of 347
Income inequality (Gini)Weakness	0.478	0.471	0.449	0.483	80th	65th of 343
Homeownership rate	80.4%	85.6%	68.6%	65.2%	79th	162nd of 344
Per capita income	$50,472	$52,898	$40,550	$44,673	73rd	49th of 347
Median home value	$378,800	$372,100	$257,400	$332,700	59th	14th of 302
Work from home	13.9%	12%	9.7%	15.1%	56th	119th of 347
Bachelor's degree or higher	34%	31.6%	31.9%	35.7%	55th	65th of 346
Median household income	$83,469	$84,112	$75,081	$80,734	54th	109th of 327
Average commute	26.1 min	29.5 min	17.8 min	26.4 min	50th	60th of 330
Poverty rate	10%	9%	11.9%	12.5%	45th	149th of 344
Broadband access	91.6%	87.8%	89.6%	91%	45th	103rd of 344
Median earnings per worker	$45,120	$52,596	$46,539	$49,666	40th	181st of 345
Median gross rent	$1,087	$1,112	$946	$1,413	27th	26th of 243
Tech workers	1.3%	1.3%	2.3%	3.8%	18th	99th of 347
Diversity index	24.2	22.6	35.4	61.4	17th	112th of 347
Foreign-born residents	2.8%	2.7%	4%	14.1%	17th	73rd of 347
Population	5,596	8,892	907,428	334,922,499	9th	30th of 347
Residents under 18	13.6%	13.8%	24.2%	22%	6th	307th of 347
Unemployment rateStrength	1.8%	2.3%	2.9%	5.2%	4th	146th of 347
Rent-burdened rentersStrength	20.4%	20.5%	39.8%	51.1%	2nd	208th of 313
Population density	11/sq mi	6/sq mi	12/sq mi	95/sq mi	1st	105th of 347

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

11%

5–17

18–24

25–34

35–44

10%

45–54

17%

55–64

24%

65–74

13%

75+

Median age

57.9

Under 18

13.6%

65 and over

36.4%

Race and ethnicity

White87%
Black0.3%
Hispanic2%
Asian0.6%
Native American2%
Pacific Islander0%
Other2%
Multiracial6%

Diversity index

24.2

U.S. 61.4

Foreign-born

2.8%

U.S. 14.1%

Born in state

40.2%

Language spoken at home (households)

English only

89%

Spanish

Other Indo-European

Asian / Pacific

0.7%

Other

0.5%

Households

Households: 2,733
Average household size: 2
Family households: 70.9%
Married couples: 60.6%
Living alone: 25.1%
Veterans (of adults): 13.2%
Male / female: 48% / 52%

Income and poverty

Household income distribution

<$25k

15%

$25–50k

14%

$50–75k

14%

$75–100k

22%

$100–150k

16%

$150–200k

11%

$200k+

Median household income

57730

$83,469

Custer Co.

$84,112

South Dakota

$75,081

United States

$80,734

Per capita income

$50,472

U.S. $44,673

Poverty rate

10%

U.S. 12.5%

Households earning $150K+

17.2%

U.S. 23%

Income inequality (Gini)

0.478

U.S. 0.483

Housing

Median home value

57730

$378,800

Custer Co.

$372,100

South Dakota

$257,400

United States

$332,700

Median gross rent

57730

$1,087

Custer Co.

$1,112

South Dakota

$946

United States

$1,413

Types of housing

Single-family

79%

2–4 units

5–19 units

20+ units

Mobile home

11%

Boat, RV, van

0.5%

Housing units: 3,346
Owner-occupied: 80.4%
Vacant: 18.3%
Median year built: 1981
Median rooms: 5.6
Renters paying 30%+ of income: 20.4%
Renters paying 50%+ of income: 9.4%
Home value to income: 4.5× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

71%

Carpooled

Transit

Walked

Bicycle

Worked from home

14%

Other

0.9%

Commute time (one way)

<10 min

40%

10–19

23%

20–29

30–44

12%

45–59

10%

60+

11%

Average commute

26.1 min

U.S. 26.4 min

Unemployment

1.8%

U.S. 5.2%

In labor force

50.7%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Healthcare

16%

Management

15%

Office and admin

10%

Construction and repair

10%

Sales

Farming, fishing and forestry

Transportation and moving

Food service

Cleaning and personal care

Production

Business and finance

Education

Engineering and science

Police and fire

Arts, media and sports

Computer and math

Legal and social services

Industries

Agriculture and mining

14%

Health care and social assistance

13%

Transportation, warehousing and utilities

Public administration

Construction

Restaurants and hotels

Admin, support and management

Retail

Manufacturing

Finance, insurance and real estate

Professional and technical services

Education

Arts and recreation

Other services

Information

Wholesale

Median earnings per worker

$45,120

U.S. $49,666

Self-employed

19.6%

U.S. 10%

Government workers

19.8%

U.S. 14.5%

Nonprofit workers

9.4%

U.S. 8.8%

Median earnings by type of work

Type of work	57730	U.S.
Management, business, science and arts	$71,923	$74,888
Service	$35,625	$26,804
Sales and office	$21,883	$40,476
Construction and maintenance	$78,719	$49,199
Production and transportation	$11,481	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

25%

Some college

26%

Associate's

Bachelor's

24%

Graduate

10%

High school graduate or higher: 93.8%
Bachelor's degree or higher: 34%
Graduate or professional degree: 10.3%
Households with broadband: 91.6%
Cable, fiber or DSL: 72.6%
No internet access: 6.7%
Without health insurance: 12.8%
Limited-English households: 0%

Geography

City (USPS): Custer
State: South Dakota
County: Custer County
Center point: 43.7266° N, 103.6486° W
Land area: 516 sq mi
Water area: 0.6 sq mi
Time zone: Mountain Time (UTC-7, UTC-6 in summer)
Zip type: Residential delivery area

57730 spans 2 counties

Custer County92% of land
Pennington County8% of land

Zip codes near 57730

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
57773	Pringle, SD	9.6 mi	206	—	—
57751	Keystone, SD	15 mi	893	$97,969	$473,500
57745	Hill City, SD	21 mi	1,894	$88,194	$343,900
57702	Rapid City, SD	24 mi	35,595	$91,457	$389,700
57738	Fairburn, SD	25 mi	356	$52,308	—
57747	Hot Springs, SD	25 mi	5,839	$68,443	$221,000
57709	Rapid City, SD · PO box	29 mi	—	—	—
57744	Hermosa, SD	31 mi	2,421	$106,250	$386,800
57735	Edgemont, SD	32 mi	1,727	$71,576	$165,600
57718	Black Hawk, SD	34 mi	7,937	$84,162	$300,100
82715	Four Corners, WY · PO box	34 mi	—	—	—
57766	Oral, SD	35 mi	176	$96,146	—

Zip codes like 57730 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 57730

What city is zip code 57730?

57730 is assigned to Custer, South Dakota. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 57730 in?

57730 is mostly in Custer County, but it extends into 1 other county.

What is the population of 57730?

About 5,596 people live in 57730, according to the Census Bureau's American Community Survey.

What time zone is 57730 in?

57730 is in Mountain Time.

What is the median household income in 57730?

The median household income in 57730 is $83,469.

What zip codes are near 57730?

The closest zip codes to 57730 are 57773, 57751, 57745, 57702, 57738.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 57730, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.