57481 ZIP Code, Westport, SD
57481 is a ZIP code in Westport, South Dakota — mostly in Brown County (56% of its land), with smaller parts in McPherson and Edmunds counties. It covers 188 square miles of land. The closest ZIP codes are 57426, 57441 and 57401. 271 people live here in 121 households, fewer than in most South Dakota ZIP codes. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (95%). Median household income is $68,125, close to the South Dakota median of $75,081; the median age is 54.2, older than most ZIP codes.
Quick facts
- Mailing city: Westport, SD
- County: Brown County
- Land area: 188 sq mi
- Population: 271
- Median household income: $68,125
Key figures
| Measure | Value |
|---|---|
| Residents | 271 |
| Households | 121 |
| Median household income | $68,125 |
| Income per person | $37,896 |
| Median age | 54.2 |
| Homeowners | 95.0% |
| Median home value | $215,600 |
| Median rent | not published |
| Bachelor's degree or higher | 12.4% |
| Average commute (minutes) | 20.5 |
| Households with kids under 18 | 27.3% |
| Moved in the past year | 0.7% |
| Below the poverty line | 4.8% |
| Broadband internet | 86.8% |
| Speak a non-English language at home | 6.4% |
Household income
| % of households | Value |
|---|---|
| <$10K | 1.7% |
| $10–15K | 1.7% |
| $15–25K | 16.5% |
| $25–35K | 0.0% |
| $35–50K | 4.1% |
| $50–75K | 28.1% |
| $75–100K | 18.2% |
| $100–150K | 9.9% |
| $150–200K | 12.4% |
| $200K+ | 7.4% |
Age
| % of all residents | Value |
|---|---|
| <10 | 15.8% |
| 10–19 | 4.8% |
| 20–24 | 2.2% |
| 25–34 | 1.8% |
| 35–44 | 15.5% |
| 45–54 | 14.8% |
| 55–64 | 21.1% |
| 65–74 | 13.3% |
| 75+ | 10.7% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 30.9% |
| Owned outright | 46.3% |
| Rented | 4.0% |
| Vacant | 18.8% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 86.6% |
| Townhome | 5.4% |
| 2–4 units | 2.0% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 6.0% |
Businesses in 57481
11 business establishments with 48 employees (ZIP Codes Business Patterns 2023).
- Construction: 3
EDDM carrier routes
See every USPS carrier route in 57481 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 57426 (10.4 mi)
- 57441 — Frederick town, SD (14 mi)
- 57401 — Aberdeen city, SD (14.4 mi)
- 57456 — Leola city, SD (15.8 mi)
- 57433 — Columbia city, SD (17.6 mi)
- 57451 — Mina CDP, SD (19.8 mi)
- 57427 — Bath CDP, SD (21.7 mi)
- 58439 — Spring Creek Colony CDP, SD (22.3 mi)
Areas that include 57481
- Westport, SD ZIP codes — 1 ZIP code
- Grassland Colony, SD ZIP codes — 1 ZIP code
- Wetonka, SD ZIP codes — 1 ZIP code
- Long Lake Colony, SD ZIP codes — 2 ZIP codes
- Brown County ZIP codes — 16 ZIP codes
- Edmunds County ZIP codes — 9 ZIP codes
- McPherson County ZIP codes — 7 ZIP codes
- South Dakota ZIP code data
Mail every home in 57481
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 57481, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 57481 in?
- 57481 is a Westport, SD mailing address. None of its land lies inside a Census-defined city or community.
- What county is 57481 in?
- 57481 is mostly in Brown County (56% of its land), with smaller parts in McPherson and Edmunds counties.
- What is the population of 57481?
- About 271 people (±114), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 536.
- What is the median household income in 57481?
- $68,125 (±$22,811), compared with $75,081 for South Dakota as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 57481?
- EDDM2GO's stored route library does not include 57481 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 57481?
- The closest, measured center to center: 57426 (10.4 mi), 57441 (14 mi, Frederick), 57401 (14.4 mi, Aberdeen), 57456 (15.8 mi, Leola), 57433 (17.6 mi, Columbia) and 57451 (19.8 mi, Mina).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.