Local context: South Dakota
Housing economics in South Dakota. The median home value runs 23.2% below the U.S. baseline for South Dakota is $275,000 per Zillow's home-value index. Effective property tax sits at 1.24% of assessed value, meaningfully higher than the 0.99% national average tracked by the Tax Foundation. Lenders in South Dakota have quoted 6.30% on the 30-year fixed product over the trailing four-week window per Freddie Mac PMMS — the prevailing posted rate before any borrower-specific lock-ins.
Income and tax climate. Median household income in South Dakota reaches $79,850 per the ACS five-year vintage, pulling above the $78,538 U.S. median. South Dakota's top marginal state income tax bracket lands at 0.00% — one of nine states that levies no broad-based income tax, shifting the revenue burden onto sales, property, and severance levies. State sales tax sits at 4.50% before local add-ons; combined rates in metro areas frequently push 1-3 percentage points higher. BEA's Regional Price Parity scores South Dakota at 88.1 (national = 100), meaning a dollar in South Dakota buys 114¢ — more goods and services than the same dollar nationally.
How South Dakota's tax structure plugs into the calculator. Federal brackets are the same in every state, but the state-level overlay changes the marginal and effective rates that actually leave your paycheck. The income tax, paycheck, capital gains, and self-employment calculators all factor South Dakota's top marginal rate, standard deduction, and (where applicable) local payroll levies into the take-home math. Sales tax surfaces in cost-of-living comparisons rather than in income calculators. Property tax shows up only on real-estate calculators. Each calculator on this page uses the South Dakota numbers above where the rule applies and federal-default values everywhere else.
Local context as of 2026-04-19. Live data sources are listed in the Sources section below; each metric carries its own retrieval date.