📈 Top 10 Wealthiest ZIP Codes in South Dakota (by Income / Wealth)

 

Here are the top 10 wealthiest ZIP codes in South Dakota based on available income and adjusted gross income (AGI) data (wealth rankings reflect income/AGI rather than only home values or cost of living):

1. 57767 (Owanka, SD) – Extremely high median household income (~$250,001+).

2. 57017 (Colman, SD) – Highest AGI in the state per IRS data.

3. 57049 (North Sioux City, SD) – Strong AGI and income, including Dakota Dunes area.

4. 57479 (Warner, SD) – High AGI with elevated median household income.

5. 57108 (Sioux Falls, SD – Lincoln County area) – Top Sioux Falls ZIP for income.

6. 57105 (Sioux Falls, SD) – Sioux Falls suburban ZIP with higher income.

7. 57104 (Sioux Falls, SD) – Another higher-income Sioux Falls ZIP by AGI.

8. 57702 (Rapid City, SD) – Pennington County area with strong AGI.

9. 57003 (Baltic, SD) – Among the top in median household income statewide.

10. 57032 (Harrisburg, SD) – Higher median household income near Sioux Falls.

Notes on Rankings

• Income vs. Wealth: "Wealthiest" here is based on adjusted gross income (AGI) and median household income, both common proxies for overall economic status.

• Owanka’s ZIP (57767) stands out with a very high median household income relative to most of South Dakota.

• Sioux Falls and nearby suburbs (57108, 57105, 57104, 57032) appear frequently due to larger populations with higher incomes.