ZIP code 57730
Where is ZIP code 57730?
Custer, South Dakota
Custer County · Standard ZIP code
ZIP code 57730 belongs to Custer, South Dakota in Custer County. 57730 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Mountain Time zone and uses area code 605. About 5,596 people live in the 57730 area, where the median household income is $83,469. The closest ZIP codes are 57773 (Pringle, 9.1 mi west), 57738 (Fairburn, 10.6 mi east) and 57722 (Buffalo Gap, 13.2 mi southeast).
| ZIP code | 57730 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Custer |
| Also accepted | Crazy Horse |
| State | South Dakota (SD) |
| County | Custer County |
| Time zone | Mountain Time · now |
| Area code | 605 |
| Coordinates | 43.6573, -103.4258 map |
| 3-digit prefix | 577 |
Population and income in 57730
| Population | 5,596 · higher than 92% of South Dakota ZIP codes |
|---|---|
| People per square mile | 11 · higher than 71% of South Dakota ZIP codes |
| Median age | 57.9 years · higher than 92% of South Dakota ZIP codes |
| Men / women | 48% / 52% |
| Median household income | $83,469 · higher than 66% of South Dakota ZIP codes |
| Income per person | $50,472 |
| Below the poverty line | 10% |
| Bachelor’s degree or higher | 34% of adults 25+ |
| Median home value | $378,800 · higher than 96% of South Dakota ZIP codes |
| Median rent | $1,087 a month |
| Housing units | 3,346 |
| Households | 2,733 (1.97 people on average) |
| Owners / renters | 80% / 20% |
| Land area | 516.16 sq mi (plus 0.61 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 57730. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 57730
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 57773 | Pringle, SD | 9.1 mi W | PO Box only |
| 57738 | Fairburn, SD | 10.6 mi E | Standard |
| 57722 | Buffalo Gap, SD | 13.2 mi SE | Standard |
| 57744 | Hermosa, SD | 15.6 mi NE | Standard |
| 57751 | Keystone, SD | 15.8 mi N | Standard |
| 57747 | Hot Springs, SD | 16.4 mi S | Standard |
| 57745 | Hill City, SD | 20.8 mi N | Standard |
| 57766 | Oral, SD | 22.2 mi SE | Standard |
| 57702 | Rapid City, SD | 24.2 mi N | Standard |
| 57782 | Smithwick, SD | 26.7 mi SE | PO Box only |
| 57709 | Rapid City, SD | 29.4 mi N | PO Box only |
| 57703 | Rapid City, SD | 29.7 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 57730 or measure the distance to another ZIP code.
How to address mail to 57730
123 MAIN ST
CUSTER SD 57730
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts CRAZY HORSE as the city name for 57730. Avoid Bakerville, Bluebell, Game Lodge, Harney Peak and Sanator and other local names: USPS doesn’t recognize them as the city for this ZIP code. Adding the 4-digit ZIP+4 code (57730-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 57730?
- 57730 is a Custer, South Dakota ZIP code. Crazy Horse is also accepted as the city name.
- What county is 57730 in?
- ZIP code 57730 is in Custer County, South Dakota.
- What time zone is ZIP code 57730 in?
- 57730 is in the Mountain Time zone (America/Denver).
- What area code is 57730?
- Phone numbers in ZIP code 57730 use area code 605.
- What is the population of ZIP code 57730?
- About 5,596 people live in ZIP code 57730, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 57730?
- The median household income in 57730 is $83,469 a year, higher than 66% of South Dakota ZIP codes.
- What ZIP codes are near 57730?
- The nearest ZIP codes to 57730 are 57773 (Pringle, 9.1 miles), 57738 (Fairburn, 10.6 miles), 57722 (Buffalo Gap, 13.2 miles) and 57744 (Hermosa, 15.6 miles).