ZIP code 57481: Westport, SD
57481 is a ZIP code in Westport, South Dakota, mainly in Brown County, part of the Aberdeen, SD micro area. About 271 people live here.
- Population
- 271
- Median household income
- $68,125
- Typical home value
- $215,600ACS median value
- Median rent
- —gross, per month
- Median age
- 54.2
- Homeowners
- 95%of occupied homes
Shaded: ZIP code 57481's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 57481 details
| City | Westport |
|---|---|
| State | South Dakota |
| County | Brown County (also partly McPherson County, Edmunds County) |
| Metro area | Aberdeen, SD |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 188.5 sq mi, plus 0.3 sq mi of water |
| Population density | 1 people per sq mi |
| Bachelor's degree or higher | 12.4% of adults 25+ |
| Average commute | 20.5 minutes |
| Center coordinates | 45.66259, -98.68296 |
ZIP codes near 57481
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 57426 | Barnard, SD | 10.4 mi | 42 |
| 57441 | Frederick, SD | 14.0 mi | 670 |
| 57401 | Aberdeen, SD | 14.4 mi | 31,939 |
| 57456 | Leola, SD | 15.8 mi | 670 |
| 57402 | Aberdeen, SD | 16.8 mi | — |
| 57433 | Columbia, SD | 17.6 mi | 318 |
| 57451 | Ipswich, SD | 19.8 mi | 2,485 |
| 57427 | Bath, SD | 21.7 mi | 384 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 57481?
A typical home in ZIP code 57481 is worth about $215,600 (ACS median value). The median household here earns $68,125 a year. See what buying here would cost per month, with South Dakota average taxes and insurance filled in.
Monthly payment for a $215,600 homeWhat can a $68,125 income afford?Rental property numbers
About ZIP code 57481
What city is ZIP code 57481?
ZIP code 57481 is in Westport, SD, in Brown County.
What county is ZIP code 57481 in?
57481 is mainly in Brown County, South Dakota, and partly in McPherson County and Edmunds County.
What is the population of ZIP code 57481?
About 271 people live in ZIP code 57481, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 57481 in?
57481 is in Central Time (UTC−6). It observes daylight saving time.