PlainZIP

Custer, SD · standard

ZIP Code 57730

Custer County, South Dakota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

5,315
4/sq mi
$83,469
Median income
$378,800
Median home value
34.0%
Bachelor's or higher

The verdict

Custer pairs an above-median household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 34%
household income, US ZIPs
Top 23%
home value, US ZIPs
4
people per sq mi
80%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 57730 against every reporting US ZIP.

ZIP code 57730 is a mid-sized community (a standard USPS delivery area) in Custer, Custer County, South Dakota, home to 5,315 residents across 1398.7 square miles, a density of 4 people per square mile, in the Denver time zone.

ZIP 57730 lands in the middle-income range, with a median household income of $83,469 (9% above the South Dakota average), while per-capita income is $50,472. The poverty rate stands at 10.0% and the unemployment rate at 1.8%. The typical home here is valued at $378,800 (97% above the state average); renters pay a median of $1,087 monthly, and 80.4% of units are owner-occupied.

A solid share of residents have a four-year degree: 34.0% of adults hold a bachelor's degree or higher, the median age is 57.9, and the average commute is 26 minutes. A geography-based comparison follows: 1 ZIP codes within about 10 miles of 57730, plus 3 more within Custer County, give a clearer read than the national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 57730

Top 5 sectors by establishment count in Custer, SD

Which industries have the most business establishments in ZIP 57730.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 57730, Custer, SD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

5,315

Population

1398.7

Area (sq mi)

4

People / sq mi

Denver

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 57730?

57.9

Median Age

47.6%

Male

52.4%

Female

2.8%

Foreign-Born

White 88.2%
African American 0.3%
Asian 0.6%
American Indian or Alaska Native 1.8%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 7.1%
Hispanic or Latino 2.3%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$83,469

Median Household Income

+9% vs state

$50,472

Per Capita Income

10.0%

Poverty Rate

1.8%

Unemployment Rate

26.1 min

Mean Commute Time

How ZIP 57730 ranks nationally

Custer, SD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$83,469 Top 34% higher than 66% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 58.7%
Bachelor's Degree or Higher 34.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

3,346

Total Housing Units

2,733

Occupied Units

613

Vacant Units

1.97

Avg Household Size

Occupancy Type

Owner 80.4%
Renter 19.6%

$378,800

Median Home Value

+97% vs state

$1,087

Median Rent

1981

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 242 business establishments in ZIP 57730, employing approximately 1,254 people with a combined annual payroll of $62,118,000.

242

Businesses

1,254

Employees

$62.1M

Annual Payroll

16

Industry Sectors

Industry Establishments % of Total
Accommodation and food services 55 22.7%
Construction 33 13.6%
Retail trade 28 11.6%
Other services (except public administration) 19 7.8%
Health care and social assistance 18 7.4%
Professional, scientific, and technical services 17 7.0%
Finance and insurance 13 5.4%
Administrative and support and waste management and remediation services 13 5.4%
Real estate and rental and leasing 11 4.5%
Manufacturing 6 2.5%
Arts, entertainment, and recreation 6 2.5%
Wholesale trade 5 2.1%
Transportation and warehousing 4 1.6%
Information 4 1.6%
Agriculture, forestry, fishing and hunting 3 1.2%
Mining, quarrying, and oil and gas extraction 3 1.2%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 57730 vs 57773 →

ZIP Code City Population Distance
57773 Pringle, SD 133 9.4 mi

More ZIP Codes in Custer County

57744 standard
Hermosa, SD
Pop: 2,238
57738 standard
Fairburn, SD
Pop: 170
57773 standard
Pringle, SD
Pop: 133

Related Areas

Custer County Custer, SD South Dakota

Frequently Asked Questions

What county is ZIP code 57730 in? ▼
ZIP code 57730 (Custer) is located in Custer County, South Dakota. Custer County contains multiple ZIP codes, see the full list at /counties/custer-sd.
What is the population of ZIP code 57730? ▼
ZIP code 57730 in Custer, SD has a population of 5,315 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 57730? ▼
The median household income in ZIP 57730 is $83,469, which is 9% above the national average of $76,288.
What is the average home value in ZIP 57730? ▼
The median home value in ZIP 57730 is $378,800, which is 36% above the national average of $278,155.
What is the demographic makeup of ZIP 57730? ▼
The largest racial group in ZIP 57730 is White at 88.2%. Hispanic or Latino residents make up 2.3% of the population.
How many businesses are in ZIP code 57730? ▼
ZIP code 57730 has 242 business establishments employing approximately 1,254 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 57730? ▼
The top industries by establishment count in ZIP 57730 are: Accommodation and food services (55), Construction (33), Retail trade (28). There are 16 industry sectors represented in total.
What is the education level in ZIP code 57730? ▼
In ZIP code 57730, 58.7% of residents aged 25+ have a high school diploma or higher, and 34.0% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 57730? ▼
The mean commute time for workers in ZIP code 57730 is 26.1 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 57730? ▼
In ZIP code 57730, approximately 80.4% of occupied housing units are owner-occupied and 19.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 57730? ▼
The poverty rate in ZIP code 57730 is 10.0% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.