The Richest States in America, by Census Median Household Income

The Census Bureau publishes median household income for every U.S. state every December. The headline ranking has been remarkably stable for two decades: Maryland, New Jersey, Massachusetts, Hawaii, and California fight for the top five; Mississippi, West Virginia, Arkansas, Louisiana, and Alabama anchor the bottom.

Why Maryland keeps winning

Maryland's median household income is roughly $98,461 — the highest of any state. The driver isn't natural advantages; it's the federal government. Six of Maryland's largest counties (Howard, Montgomery, Anne Arundel, Frederick, Charles, Calvert) ring Washington DC and host enormous concentrations of federal employees, contractors, and adjacent professional services.

Strip those DC-suburb counties out and Maryland's income falls into the middle of the national distribution. The same logic applies to Northern Virginia, which lifts Virginia's overall ranking far above what its rural areas alone would produce.

Why the Deep South is poor

Mississippi's median household income is about $54,915 — the lowest of any state. Three structural reasons: lower educational attainment (under 25% bachelor's degree share statewide), heavy concentration in lower-wage industries (agriculture, lower-tier manufacturing), and rural population that earns less per worker than urban populations.

But cost of living tracks income. The Mississippi median household has more disposable income after rent than the California median — about 11% more, by the simple rent-to-income measure.

• Top 5: Maryland, New Jersey, Massachusetts, Hawaii, California
• Bottom 5: Mississippi, West Virginia, Arkansas, Louisiana, Alabama
• Top-to-bottom spread: ~$43,500
• Top-to-bottom after housing cost: closer to $20,000

The middle of the table tells the real story

The interesting movement happens in states ranked 15–35. Texas has climbed eight ranks in two decades on the back of in-migration and oil/tech wages. Washington has climbed similarly on tech. Florida is largely flat in nominal income because retiree migration suppresses the median.

States slipping down the ranks include Michigan and Ohio (durable-goods manufacturing decline) and New Mexico (oil-price exposure plus weak metro growth).