100 Richest ZIP Codes in the United States in Union County, South Dakota
Explore the 100 ZIP codes with the highest median household income in the United States using U.S. Census data. This page lists ZIP codes located in Union County, South Dakota.
| Rank | ZIP Code | City | State | Median Household Income |
|---|---|---|---|---|
| 1 | 57049 | NORTH SIOUX CITY | SD | $88,948 |
| 2 | 57025 | ELK POINT | SD | $85,985 |
| 3 | 57038 | JEFFERSON | SD | $84,083 |
| 4 | 57004 | BERESFORD | SD | $72,466 |
| 5 | 57001 | ALCESTER | SD | $66,793 |