ZIP Code 57730 - Custer South Dakota

ZIP Code 57730 is located in Custer South Dakota. Portions of 57730 are also in Pringle and West Custer and West Pennington and East Custer and Pringle (town). 57730 is primarily within Custer County, with some portions in Pennington County. Regionally, it is located in the Rapid City Area.

Stats Demographics Geography Politics Schools Climate Related Pages

ZIP Code 57730 Quick Stats

ZIP Code NameCuster
Primary CountyCuster County
ZIP Code TypeStandard
Population (2022)5,809
Area Code(s)605
Current Time

ZIP Code 57730 Map

57730 Demographics

57730 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in South Dakota based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 57730 is White. The majority race/ethnicity attending public schools in 57730 is White. The current unemployment level in 57730 is 3.9%.

Population Growth Rate7.91%
Population Density9 People per Square Mile
Total Households2,597
Percentage High Income Households0.4%
Median Houshold Income (2021)$72,528
Average Adjusted Gross Income (2020)$73,690
Current Unemployment Rate (February 2024)3.9%
Majority Race/EthnictyWhite - 91.81%
Public School Majority Race/EthnictyWhite - 86.59%

57730 Race/Ethnicty Breakdown

Native American1943.3%
Hawaiian/Pac. Islander00%

57730 Public School Race/Ethnicty Breakdown

Native American213.29%
Hawaiian/Pac. Islander10.16%

57730 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College2956.91%
Bachelor Degree84819.86%
High School Diploma1,03524.24%
No High School Diploma240.56%
GED or Alternate1724.03%
1 or More Years of College1,06424.92%
Associates Degree4069.51%
Masters Degree3518.22%
Professional Degree160.37%
Doctorate Degree581.36%

57730 Geography

Adjacent ZIP Codes
Cities/Towns in 57730
RegionRapid City Area
Metropolitan/Micropolitan Stat AreaRapid City, SD
Time ZoneMountain Standard Time
IANA TimezoneAmerica/Denver
Area640 Square Miles

57730 Politics

South Dakota State Senate Districts in 57730
South Dakota State House of Representatives Districts in 57730

57730 Weather and Climate Data

Plant Hardiness ZoneZone 4b: -25F to -20F
Average First Frost DateSeptember 1 - 10
Average Last Frost DateJune 1 - 10
Koppen-Geiger Climate ZoneDfa - Humid Continental Hot Summers
Ecoregion17b - The Black Hills Plateau

57730 Annual Climate Data

Avg Min Temp (°F)12162028374652504131211431
Avg Max Temp (°F)35404553637380797059443757
Avg Precip (In.).38.611.

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