ZIP Code 57730 in Custer, SD

Data Last Updated: October 1, 2025
City:Custer, South Dakota
City Alias:Crazy Horse
Names to Avoid:
Bakerville, Bluebell, Game Lodge, Harney Peak, Sanator, Sylvan Lake
Counties:Custer County[Primary]
Pennington County
Timezone:Mountain (GMT -07:00)
Local Time:6:07:52 AM
Population:5,219 [See All]
Area Code:605
Classification:Standard [Normal Street Delivery]
Coordinates:43.7084, -103.7452
Land Area:516.163 sq mi
Quick Link:
https://www.zip-codes.com/zip-code/57730/zip-code-57730.asp

Download this data |

Download ZIP Boundaries |

Interactive charts load automatically as you scroll. Hover for data, click to explore trends, and use the menu to export.

Population & Demographics


ZIP Code 57730 has 5,219 residents and 2,442 households (average 2.10 persons per household). The median age is 58.1 years, significantly older than the state (37.7) and significantly older than the nation (38.8). The gender split is 49.4% male and 50.6% female, which is about the same as the state male share (50.3%), making this a female-majority area. Largest groups are White (92.4%, much higher than the state average of 80.7% and well above the national average of 61.6%) and Hispanic or Latino (2.3%); Hispanic or Latino residents make up 2.3%, which is much lower than the national average (18.7%).

Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2023 American Community Survey (ACS) 5-Year Estimates.
2020 Population:5,219Source: Census DHC
2023 ACS Population Estimate:5,647Source: Census ACS
2025 ZC Population Estimate:5,583Source: ZIP-Codes.com
Population Density:10.1 people per sq mile
Average Income:$81,911Source: Census ACS
Households:2,442Source: Census DHC
Average House Value:$324,300Source: Census ACS
Persons Per Household:2.10Source: Census DHC
Average Family Size:2.74Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group20102011210220132014201520162017201820192020202120222023
Census ACS Population Estimate--5,9385,9815,7075,6095,6695,4435,4845,7675,9005,9955,9185,8095,647
Decennial Census5,315------------------5,219------
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 58.1

Male Median Age: 58.1

Female Median Age: 58.1

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male841151431225862971191351211411722473452751589884
Female8513012810846661071241281441282283173072491797594
Total169245271230104128204243263265269400564652524337173178
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:4,82494.53%
Black:210.41%
Hispanic:*1192.33%
Asian:150.29%
American Indian:811.59%
Hawaiian:00%
Other:430.84%
Total:5,103100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:2,57649.36%58.1 years
Females:2,64350.64%58.1 years
Total:5,219100%58.1 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:5,51897.72%
Native, born in PR, Island Areas, or abroad:210.37%
Foreign born, naturalized U.S. citizen:611.08%
Foreign born, not a U.S. citizen:471.91%
Total Population:5,647100%
Total Native Population:5,53998.09%
Total Foreign-born Population:1081.91%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2023, the Median household income is $81,911, which is markedly greater than the state median ($72,421), is up $35,036 (74.7%) since 2011 and above its 2019 pre-pandemic level by $24,255. Family households earn a median of $86,579 versus $47,159 for nonfamily households (a difference of $39,420). By gender, male median income is $77,982 and female is $55,536, which is considerably higher than the state female median ($46,986), with a current gap of $22,446 that has widened from 2011 to 2023. The labor-force participation rate is 50.7%, which is markedly below the state rate (67.5%). The unemployment rate is 2.0%, which is far lower than the national rate (5.2%). The largest occupation group is Management (33.2%).

Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type2011201220132014201520162017201820192020202120222023
Median Household Income$46,875$44,054$44,183$44,792$44,981$45,565$49,871$56,659$57,656$67,723$72,528$76,667$81,911
Median Family Income$57,310$59,354$59,705$61,735$61,320$65,789$68,371$70,417$70,190$80,685$83,813$88,333$86,579
Median NonFamily Income$29,048$24,459$22,823$26,042$28,065$28,542$30,458$30,797$33,487$36,512$42,778$38,750$47,159
Median Male Income$45,253$45,507$48,516$48,862$47,986$44,844$45,603$48,000$48,587$58,651$65,313$73,750$77,982
Median Female Income$30,160$31,921$36,571$33,750$35,938$35,975$36,763$36,504$35,319$39,148$46,792$55,239$55,536
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:2,46549.67%
Unemployed:511.03%
Not In Labor Force:2,44749.30%
Total:4,963100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:81933.23%
Service:54922.27%
Sales and Office:52321.22%
Natural resources, construction, and maintenance:31812.90%
Production, transportation, and material moving:25610.39%
Total Civilian Employed Population:2,465100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2023, the median home value is $324,300, which is considerably higher than the state median ($236,800), is up $160,800 (98.35%) since 2011 and above its 2019 pre-pandemic level by $110,000. The median gross rent is $1,070, which is much lower than the national median ($1,348), is up $564 (111.46%) since 2011 and above its 2019 pre-pandemic level by $280. Of occupied housing, owners make up 80.71% (50.22% with a mortgage, 49.78% free-and-clear) and renters 19.29% - making this ZIP Code more home ownership than the state and under national rental averages. The vacancy rate is 24.31%, which is considerably higher than the national rate (10.43%).

Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group2011210220132014201520162017201820192020202120222023
Median Home Value$163,500$169,400$185,200$209,000$214,100$213,100$213,100$220,500$214,300$222,600$244,900$286,300$324,300
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:5912.14%
$500 to $999:14930.66%
$1,000 to $1,499:13928.60%
$1,500 to $1,999:10220.99%
$2,000 to $2,499:91.85%
$2,500 to $2,999:00.00%
$3,000 or more:132.67%
No Rent:153.09%
Total:486100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group2011210220132014201520162017201820192020202120222023
Median Rent$506$522$580$810$805$817$862$872$790$990$949$954$1,070
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):1,02140.53%
Owner Occupied (free and clear, no mortgage):1,01240.17%
Renter Occupied:48619.29%
Total Occupied Housing Units:2,519100%

Occupied Housing Units:2,51975.69%
Vacant Housing Units (not graphed):80924.31%
Total Housing Units:3,328100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:2,60378.22%
Multi-Family Units:34810.46%
Other Units:37711.33%
Total Housing Units:3,328100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2023, 35.40% of adults (25+) have a bachelor's degree or higher, which is on par with the state rate (31.10%). High school or higher is 95.00%, which is far higher than the national rate (89.40%). The uninsured rate is 11.70%, which is comparable to the national rate (8.60%). Public coverage is 42.00%, which is notably higher than the state rate (30.80%). The share of people in poverty is 5.90%, which is comparable to the national rate (8.70%), up 1.40 percentage points since 2011 and below its 2019 pre-pandemic level by 8.20 percentage points. This points to rising hardship - a weaker consumer base, greater strain on public services, and job-market headwinds. Among residents ages 3+, the largest enrollment group is elementary (43.24%). College enrollment is 9.71%, which is far lower than the national rate (26.70%), indicating the community may be more oriented toward vocational/trade or direct-to-workforce opportunities.

Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:992.14%
9th to 12th grade, no diploma:1312.84%
High school graduate (includes equivalency):1,37729.81%
Some college, no degree:1,03322.36%
Associate's degree:3437.42%
Bachelor's degree:1,16525.22%
Graduate or professional degree:47210.22%
Total:4,620100%
High school or higher:4,39095.02%
Bachelor's degree or higher:1,63735.43%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:4,08858.01%
Public Insurance:2,31632.87%
No Insurance:6439.12%
Total:7,047100%
Has Health Insurance:6,40490.88%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2023)


Group2011210220132014201520162017201820192020202120222023
% of People in Poverty4.5%4.5%4.5%4.3%6.8%9.3%11.4%11.6%14.1%11.3%12.1%8.6%5.9%
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:121.76%
Kindergarten:578.38%
Elementary school (grades 1-8):29443.24%
High school (grades 9-12):25136.91%
College or graduate school:669.71%
Total:680100%
Early Childhood:6910.15%
K-12 (Primary & Secondary School):60288.53%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 57730 supports both business and residential activity. According to the Business Census (2023), there are 242 business establishments, employing about 1,254 people with an annual payroll of $62,118,000. USPS data shows 2,659 residential mailboxes and 191 business mailboxes, reflecting local delivery coverage.

# Residential Mailboxes:2,659Source: USPS
# Business Mailboxes:191Source: USPS
Total Delivery Receptacles:3,525Source: USPS
Single Family Delivery Units:2,435Source: USPS
Multi Family Delivery Units:90Source: USPS
# of Businesses:242Source: CBP
1st Quarter Payroll:$11,283,000Source: CBP
Annual Payroll:$62,118,000Source: CBP
# of Employees:1,254Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 57730 is located in Custer County, South Dakota, within the Rapid City, SD Metropolitan Statistical Area (CBSA 39660). This Metro area has a population of 151,064 people, about 3.45% of whom live in ZIP Code 57730. It covers 516.163 sq mi of land and a water area of 0.605 sq mi.

CBSA Name:Rapid City, SDSource: Census
CBSA Number:39660Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:151,064Source: Census
MSA:Source: Census
Land Area:516.163 sq miSource: Census
Water Area:0.605 sq miSource: Census
Congressional District:No DistrictsSource: USPS
Congressional Land Area: sq miSource: Census
PMSA:Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:4615140Source: Census
Place Name:Custer city; South DakotaSource: Census

Adjacent & Nearby ZIP Codes


57732 | | 57725

Schools in ZIP Code 57730


ZIP Code 57730 is in the Custer School District 16-1, which serves grades Pre-Kindergarten thru 12th. There are 3 public school(s) in this ZIP Code, and we have located 3 private school(s). It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Custer Elementary - 02 1415 Wildcat Ln
Custer, SD 57730
District: Custer School District 16-1
Custer High School - 01 1645 Wildcat Ln
Custer, SD 57730
District: Custer School District 16-1
Custer Jr. High - 05 1645 Wildcat Ln
Custer, SD 57730
District: Custer School District 16-1
Black Hills Children's Home 24100 S Rockerville Rd
Rapid City, SD 57702
District: Private SchoolNearby
Bethesda Lutheran School 1537 Baltimore Ave
Hot Springs, SD 57747
District: Private SchoolNearby
Rapid City Christian School 23757 Arena Dr
Rapid City, SD 57702
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 57730


National American University-Rapid City 5301 Mount Rushmore Road
Rapid City, SD 57701-2823
Type: Post Secondary
Paul Mitchell The School-Rapid City 333 Omaha St. Suite 6 & 7
Rapid City, SD 57701
Type: Post Secondary
South Dakota School Of Mines And Technology 501 E Saint Joseph St
Rapid City, SD 57701-3995
Type: Post Secondary
The Salon Professional Academy 937 East North Street
Rapid City, SD 57701
Type: Post Secondary
Western Dakota Technical College 800 Mickelson Dr
Rapid City, SD 57703-4018
Type: Post Secondary
National American University-Ellsworth Afb Extension 1000 Ellsworth Street, Suite 2400-B
Ellsworth Air Force Base, SD 57706-4800
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on October 1, 2025.

  1. U.S. Postal Service [Last Updated: 10/1/2025], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 10/1/2025], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2023 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 10/1/2025], https://nces.ed.gov