Guides to state rankings and data
A different definition can change the order. These guides explain which questions the numbers can answer—and which they leave open.
What does “richest state” actually mean?
Median household income, personal income, GDP, and price-adjusted income answer different questions. Here is how to read an income ranking.
One state, several cost-of-living measures
Why price parities, selected urban price baskets, home values, and monthly housing costs can put states in different orders.
Attainment is not school quality
Adult degrees, student achievement, graduation, and school spending describe different parts of education. Compare the right population and measure.
How we calculate household income after housing costs
A reproducible 2024 ACS microdata calculation, with household weights, 80 replicate weights, explicit exclusions and distribution estimates.
States with no income tax in 2026
Nine states levy no tax on wages or other personal income in 2026. What each one does and does not tax, and how their property taxes and prices compare.
States that border Canada and Mexico
Thirteen states touch the border with Canada and four touch the border with Mexico. Which ones they are, which neighbors they face, and why three of the Canadian border states have no land border.
Choose a guide by the question you have
Use the income guide when two “richest state” lists disagree: it works through an actual same-year price adjustment. Use the cost-of-living guide to compare dollar rents with the share of renters who meet a burden threshold. Use the education guide to distinguish overlapping qualification groups from school outcomes. Use the income tax guide to see which states levy no income tax and how their property taxes compare. For an analysis built from individual public-use household records, the income-after-housing method documents the formula, exclusions, weighting and uncertainty, and supplies the calculation script.
Before comparing two lists
Check the observation’s year, the source release, the population covered, and the unit. Then check whether rank 1 means the highest value, the lowest value, or a weighted composite. DC and territories can change the eligible universe; missing observations can change it again.
A state’s position is only meaningful in relation to that question and universe. Our methodology makes those decisions explicit, while each ranking links directly to its producer file. Where survey estimates are close, the comparison tool reports whether a pairwise difference is established at the stated confidence level.