South Dakota Snapshot
$81
Avg AGI per Return in South Dakota
426,500
Total Tax Returns in South Dakota
280
ZIP Codes With Income Data
Last updated May 2, 2026.
How South Dakota compares
South Dakota
$81
National Average
$83
South Dakota's avg agi per return is 3.2% lower than the national average.
These are the 10 highest-income ZIP codes in South Dakota, ranked by average adjusted gross income per tax return from IRS Statistics of Income. Click any ZIP code for the full local snapshot.
FAQ
How many ZIP codes does Mubboo track in South Dakota?
Mubboo tracks 280 ZIP codes in South Dakota via the U.S. Census ZCTA basemap. Use the search box above to look up data for any specific ZIP.
How does South Dakota's average adjusted gross income per tax return compare nationally?
South Dakota's average adjusted gross income per tax return is lower the national average. See the "How South Dakota compares" callout above for the precise side-by-side comparison.
How fresh is this data?
Mubboo refreshes each data source on its native cadence — HUD Fair Market Rents annually (October), Tax Foundation tables annually, and federal datasets per their published schedules. Each page caches for 24 hours via ISR. See our methodology page for details.
Data sources: IRS Statistics of Income, Census ZIP Business Patterns, BLS Quarterly Census of Employment and Wages, BLS Local Area Unemployment Statistics. Mubboo refreshes each source on its native cadence (HUD annually, Tax Foundation annually, etc.). See our full methodology →
More South Dakota data: