ZIP code 57481
Where is ZIP code 57481?
Westport, South Dakota
Brown County · Standard ZIP code
ZIP code 57481 belongs to Westport, South Dakota in Brown County. 57481 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area code 605. About 271 people live in the 57481 area, where the median household income is $68,125. The closest ZIP codes are 57426 (Barnard, 5.9 mi northeast), 57402 (Aberdeen, 12.4 mi southeast) and 57441 (Frederick, 12.7 mi north).
| ZIP code | 57481 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Westport |
| Also accepted | Wetonka |
| State | South Dakota (SD) |
| County | Brown County |
| Time zone | Central Time · now |
| Area code | 605 |
| Coordinates | 45.6705, -98.5802 map |
| 3-digit prefix | 574 |
Population and income in 57481
| Population | 271 · lower than 74% of South Dakota ZIP codes |
|---|---|
| People per square mile | 1 · lower than 89% of South Dakota ZIP codes |
| Median age | 54.2 years · higher than 84% of South Dakota ZIP codes |
| Men / women | 61% / 39% |
| Median household income | $68,125 · lower than 64% of South Dakota ZIP codes |
| Income per person | $37,896 |
| Below the poverty line | 4.8% |
| Bachelor’s degree or higher | 12% of adults 25+ |
| Median home value | $215,600 · higher than 65% of South Dakota ZIP codes |
| Housing units | 149 |
| Households | 121 (2.24 people on average) |
| Owners / renters | 95% / 5.0% |
| Land area | 188.49 sq mi (plus 0.3 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 57481. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 57481
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 57426 | Barnard, SD | 5.9 mi NE | PO Box only |
| 57402 | Aberdeen, SD | 12.4 mi SE | PO Box only |
| 57441 | Frederick, SD | 12.7 mi N | Standard |
| 57433 | Columbia, SD | 12.8 mi E | Standard |
| 57401 | Aberdeen, SD | 14.8 mi S | Standard |
| 57456 | Leola, SD | 17.8 mi W | Standard |
| 57427 | Bath, SD | 18.4 mi SE | Standard |
| 57479 | Warner, SD | 22.8 mi S | Standard |
| 57446 | Hecla, SD | 23.3 mi NE | Standard |
| 58436 | Ellendale, ND | 23.5 mi N | Standard |
| 57449 | Houghton, SD | 25 mi E | Standard |
| 57451 | Ipswich, SD | 26 mi SW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 57481 or measure the distance to another ZIP code.
How to address mail to 57481
123 MAIN ST
WESTPORT SD 57481
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts WETONKA as the city name for 57481. Adding the 4-digit ZIP+4 code (57481-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 57481?
- 57481 is a Westport, South Dakota ZIP code. Wetonka is also accepted as the city name.
- What county is 57481 in?
- ZIP code 57481 is in Brown County, South Dakota.
- What time zone is ZIP code 57481 in?
- 57481 is in the Central Time zone (America/Chicago).
- What area code is 57481?
- Phone numbers in ZIP code 57481 use area code 605.
- What is the population of ZIP code 57481?
- About 271 people live in ZIP code 57481, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 57481?
- The median household income in 57481 is $68,125 a year, lower than 64% of South Dakota ZIP codes.
- What ZIP codes are near 57481?
- The nearest ZIP codes to 57481 are 57426 (Barnard, 5.9 miles), 57402 (Aberdeen, 12.4 miles), 57441 (Frederick, 12.7 miles) and 57433 (Columbia, 12.8 miles).