57421 ZIP Code, Marshall County, SD
57421 is a ZIP code in Marshall County, South Dakota in Marshall County. It covers 33 square miles of land. The closest ZIP codes are 57432, 57430 and 57454. 75 people live here in 18 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 (100%).
Quick facts
- Mailing city: Marshall County, SD
- County: Marshall County
- Land area: 33 sq mi
- Population: 75
Key figures
| Measure | Value |
|---|---|
| Residents | 75 |
| Households | 18 |
| Median household income | not published |
| Income per person | $33,005 |
| Median age | 16.6 |
| Homeowners | 100.0% |
| Median home value | not published |
| Median rent | not published |
| Bachelor's degree or higher | 90.9% |
| Average commute (minutes) | not published |
| Households with kids under 18 | 83.3% |
| Moved in the past year | 0.0% |
| Below the poverty line | 0.0% |
| Broadband internet | 100.0% |
| Speak a non-English language at home | 0.0% |
Household income
| % of households | Value |
|---|---|
| <$10K | 0.0% |
| $10–15K | 0.0% |
| $15–25K | 0.0% |
| $25–35K | 0.0% |
| $35–50K | 0.0% |
| $50–75K | 0.0% |
| $75–100K | 0.0% |
| $100–150K | 16.7% |
| $150–200K | 83.3% |
| $200K+ | 0.0% |
Age
| % of all residents | Value |
|---|---|
| <10 | 0.0% |
| 10–19 | 56.0% |
| 20–24 | 0.0% |
| 25–34 | 0.0% |
| 35–44 | 0.0% |
| 45–54 | 36.0% |
| 55–64 | 4.0% |
| 65–74 | 4.0% |
| 75+ | 0.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 57.7% |
| Owned outright | 11.5% |
| Rented | 0.0% |
| Vacant | 30.8% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 100.0% |
| Townhome | 0.0% |
| 2–4 units | 0.0% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 0.0% |
EDDM carrier routes
See every USPS carrier route in 57421 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 57432 — Newport Colony CDP, SD (7.8 mi)
- 57430 — Westwood Colony CDP, SD (10.6 mi)
- 57454 — Langford town, SD (12.2 mi)
- 57449 (13.1 mi)
- 57446 — Hecla city, SD (14.3 mi)
- 57468 — Pierpont town, SD (19.7 mi)
- 58017 — Cogswell city, ND (20.1 mi)
- 57433 — Columbia city, SD (21.5 mi)
Areas that include 57421
- Marshall County ZIP codes — 8 ZIP codes
- South Dakota ZIP code data
Mail every home in 57421
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) 57421, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 57421 in?
- 57421 is a Marshall County, SD mailing address. None of its land lies inside a Census-defined city or community.
- What county is 57421 in?
- 57421 is in Marshall County.
- What is the population of 57421?
- About 75 people (±90), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 63.
- How many carrier routes and mailboxes are in 57421?
- EDDM2GO's stored route library does not include 57421 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 57421?
- The closest, measured center to center: 57432 (7.8 mi, Newport Colony), 57430 (10.6 mi, Westwood Colony), 57454 (12.2 mi, Langford), 57449 (13.1 mi), 57446 (14.3 mi, Hecla) and 57468 (19.7 mi, Pierpont).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.