Census ACS 5-year estimates · 2026
The average income for households in South Dakota is $98,527, which is 13% lower than the US average.
The median income for households in South Dakota is $75,081, which is 7% lower than the US median.
More South Dakota income data
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Explore the richest ZIPs in South DakotaSouth Dakota has a population-weighted median household income of $76,069 and mean household income of $97,871 across 369 ZIP codes — 13.2% lower than the US average for median income.
$76,069
US ZIP-weighted median: $87,610 · 13.2% lower than the US average
$97,871
US ZIP-weighted mean: $113,774 · 14% lower than the US average
$40,625
US per capita: $44,688 · 9.1% lower than the US average
By age of householder
Census ACS table B19049 · 2024 5-year estimates
Gray bar = US median ($45,332)
Gray bar = US median ($90,756)
Gray bar = US median ($97,843)
Gray bar = US median ($58,390)
In South Dakota, younger households (householder under 25) report a median income of $43,953. Income peaks for householders aged 45 to 64, at $91,042. Among householders 65 and over, the median falls to $55,181 — a common pattern as people transition from career earnings to retirement income.
Income distribution
Census ACS table B19001 · 365,544 households · 2024 5-year estimates
Under $50k
33%
$50k–$99k
32%
$100k–$149k
19%
$150k+
17%
South Dakota has 365,544 households spread across 16 income brackets. The largest share (15%) falls in the $75,000 to $99,999 range. Roughly 36% of households earn $100,000 or more per year. About 33% earn less than $50,000.
Richest ZIP codes are ranked by mean household income among ZCTAs with at least 500 residents. Census suppresses exact medians above $250,000; mean income avoids ties.
| Rank | ZIP | County | Population | Mean income | Median income |
|---|---|---|---|---|---|
| 1 | 57232 | Marshall County | 651 | $188,980 | $93,750 |
| 2 | 57075 | Lake County | 1,296 | $188,936 | $106,763 |
| 3 | 57055 | Minnehaha County | 1,404 | $175,047 | $120,341 |
| 4 | 57479 | Brown County | 625 | $164,405 | $102,222 |
| 5 | 57038 | Union County | 1,796 | $162,647 | $106,250 |
| 6 | 57020 | Minnehaha County | 1,622 | $148,883 | $101,500 |
| 7 | 57108 | Lincoln County | 33,966 | $146,663 | $98,197 |
| 8 | 57018 | Minnehaha County | 1,495 | $145,515 | $97,500 |
| 9 | 57568 | Lyman County | 540 | $142,517 | $83,188 |
| 10 | 57049 | Union County | 7,962 | $141,775 | $93,134 |
369 ZIP codes grouped by county. Each code opens its income page.
Hero statistics use official Census ACS state totals (tables B19013 and S1902). Figures in this section are population-weighted aggregates of ZIP Code Tabulation Area (ZCTA) estimates for browsing individual ZIP codes. Page URL: https://resource.skyrocketbpo.com/tools/market-research/us-income-demographics-by-zip-code/south-dakota
Permanent URL backed by Census ACS data in PocketBase.
Context & methodology
Household income in South Dakota is a core input for market sizing, franchise territory analysis, and local business plans. This page aggregates 369 ZIP Code Tabulation Areas (ZCTAs) using the U.S. Census Bureau's American Community Survey (ACS) 2024 5-year estimates — the same vintage used in official state tables B19013 (median income) and B19001 (income distribution).
South Dakota's population-weighted median household income is $76,069, 13.2% below the US ZIP-weighted median. Mean household income of $97,871 is typically higher than the median when affluent households pull up the average — a signal worth checking before assuming a market is uniformly wealthy.
In South Dakota, younger households (householder under 25) report a median income of $43,953. Income peaks for householders aged 45 to 64, at $91,042. Among householders 65 and over, the median falls to $55,181 — a common pattern as people transition from career earnings to retirement income.
South Dakota has 365,544 households spread across 16 income brackets. The largest share (15%) falls in the $75,000 to $99,999 range. Roughly 36% of households earn $100,000 or more per year. About 33% earn less than $50,000.
ACS 5-year estimates combine five years of survey responses, improving reliability for smaller geographies at the cost of timeliness. For high-stakes decisions — site selection, loan underwriting, or investor decks — cross-check these figures with the primary Census tables linked below and note that the Census top-codes median household income at $250,001, so ZIP codes at that ceiling are genuinely in the highest reported bracket.
Data vintage: Census ACS 2024 5-year estimates (published 2026). Tables: B19013 (median HH income), B19001 (distribution), B19049 (income by age of householder).
Primary government data and reference pages for verifying and extending this analysis.
Official overview of the ACS — the primary source for annual household income, demographics, and housing estimates at state, county, and ZIP Code Tabulation Area levels.
Guidance on margins of error, sampling, and when to use 1-year vs. 5-year estimates — essential for interpreting small-area income data.
Explains how Census ZCTAs relate to USPS ZIP codes and why income figures may differ slightly from postal boundaries.
Population, income, poverty, and housing snapshot for South Dakota from the Census Bureau's QuickFacts portal.
Official ACS Table B19013 median household income for South Dakota.
Household counts by income bracket — the same B19001 structure shown in the income distribution chart on this page.
Employment, unemployment, wages, and CPI for South Dakota — useful context alongside household income figures.
BEA estimates of personal income, wages, and transfer payments at the state level.
Combine ZIP-level income with these free Resource tools for fuller market pictures.