57339 ZIP Code, Fort Thompson, SD
57339 is a ZIP code in Fort Thompson, South Dakota in Buffalo County. It covers 54 square miles of land. The closest ZIP codes are 57548, 57346 and 57341. 1,390 people live here in 372 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (44% own). Median household income is $46,136, well below the South Dakota median of $75,081; 45% of households have children under 18.
Quick facts
- Mailing city: Fort Thompson, SD
- County: Buffalo County
- Land area: 54 sq mi
- Population: 1,390
- Median household income: $46,136
Key figures
| Measure | Value |
|---|---|
| Residents | 1,390 |
| Households | 372 |
| Median household income | $46,136 |
| Income per person | $14,849 |
| Median age | 21.3 |
| Homeowners | 43.5% |
| Median home value | $121,700 |
| Median rent | $605 |
| Bachelor's degree or higher | 7.2% |
| Average commute (minutes) | 10.8 |
| Households with kids under 18 | 44.9% |
| Moved in the past year | 0.2% |
| Below the poverty line | 36.3% |
| Broadband internet | 64.8% |
| Speak a non-English language at home | 0.9% |
Household income
| % of households | Value |
|---|---|
| <$10K | 18.8% |
| $10–15K | 11.6% |
| $15–25K | 9.7% |
| $25–35K | 3.2% |
| $35–50K | 10.5% |
| $50–75K | 23.1% |
| $75–100K | 9.4% |
| $100–150K | 11.0% |
| $150–200K | 1.3% |
| $200K+ | 1.3% |
Age
| % of all residents | Value |
|---|---|
| <10 | 25.8% |
| 10–19 | 21.1% |
| 20–24 | 8.1% |
| 25–34 | 9.5% |
| 35–44 | 10.2% |
| 45–54 | 7.8% |
| 55–64 | 8.7% |
| 65–74 | 4.5% |
| 75+ | 4.3% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 1.4% |
| Owned outright | 36.5% |
| Rented | 49.2% |
| Vacant | 12.9% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 65.8% |
| Townhome | 1.2% |
| 2–4 units | 2.6% |
| 5–19 units | 7.5% |
| 20+ units | 2.1% |
| Mobile / other | 20.8% |
Businesses in 57339
9 business establishments with 129 employees (ZIP Codes Business Patterns 2023).
- Retail Trade: 3
- Health Care and Social Assistance: 3
EDDM carrier routes
See every USPS carrier route in 57339 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 57548 — West Brule CDP, SD (6.8 mi)
- 57346 — Stephan CDP, SD (8.5 mi)
- 57341 — Gann Valley CDP, SD (17.3 mi)
- 57569 — Reliance town, SD (19 mi)
- 57325 — Chamberlain city, SD (21.5 mi)
- 57365 — Oacoma town, SD (21.9 mi)
- 57540 (24.2 mi)
- 57371 — Ree Heights town, SD (24.6 mi)
Areas that include 57339
- Fort Thompson, SD ZIP codes — 1 ZIP code
- Buffalo County ZIP codes — 4 ZIP codes
- South Dakota ZIP code data
Mail every home in 57339
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) 57339, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 57339 in?
- 57339 is a Fort Thompson, SD mailing address. By land area, 19% lies inside Fort Thompson; the rest is outside any Census-defined city or community.
- What county is 57339 in?
- 57339 is in Buffalo County.
- What is the population of 57339?
- About 1,390 people (±240), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 1,413.
- What is the median household income in 57339?
- $46,136 (±$9,497), 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 57339?
- EDDM2GO's stored route library does not include 57339 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 57339?
- The closest, measured center to center: 57548 (6.8 mi, West Brule), 57346 (8.5 mi, Stephan), 57341 (17.3 mi, Gann Valley), 57569 (19 mi, Reliance), 57325 (21.5 mi, Chamberlain) and 57365 (21.9 mi, Oacoma).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.