Most Corrupt States

The U.S. Department of Justice's Public Integrity Section tracks federal convictions of public officials — from bribery and extortion to fraud involving government funds. This dataset uses two complementary views of that record: the per-capita conviction rate (per 10,000 residents) and the absolute conviction count, both compiled from DOJ data spanning 1976 to 2010 by the University of Illinois at Chicago.

The distinction between these two metrics matters. Raw totals favor large states simply because they employ more public officials. Per-capita rates adjust for population but can amplify small states where a handful of cases produce an outsized ratio. Across all 50 states, the national average conviction rate sits at 0.89 per 10,000 residents, with a total of 26,895 convictions recorded over the reporting period.

Louisiana and Mississippi lead in both absolute Southern dominance and per-capita rate, a pattern that tracks closely with income inequality — NBER research identifies the gap between a state's 75th and 25th percentile household incomes as the strongest single predictor of corruption conviction rates. Both states also rank among the nation's highest in poverty, suggesting corruption and economic precarity reinforce each other structurally.

Three of the top five — Alaska, South Dakota, and North Dakota — have fewer than 150 total convictions each. Their elevated rates reflect small populations rather than large-scale institutional corruption. Researchers at the Cato Institute have noted that Montana and South Dakota specifically see inflated figures partly due to federal enforcement actions on tribal reservations that fall within state boundaries.

Illinois is the only state that ranks in the top 10 by both rate and raw total, making it the dataset's clearest case of systemic corruption. The Northern District of Illinois (covering Chicago and its suburbs) alone accounts for roughly 1,750 of the state's 1,828 convictions — more than any other single court district in America. Four Illinois governors have been convicted of federal crimes since 1973.

The Pacific Northwest and Mountain West dominate the bottom of the list. Oregon — at 0.24 per 10k — recorded just 91 convictions across the entire reporting period, roughly what Chicago averaged in 18 months. Ethics watchdogs attribute the state's performance to strict competitive-bidding requirements for public contracts, a $50 cap on lobbyist gifts, and aggressive campaign-finance disclosure rules.

North Carolina is the notable outlier: despite being the 9th-most populous state, its conviction rate of 0.48 per 10k places it among the 10 least corrupt. With 461 total convictions, it demonstrates that large population alone does not guarantee a high rate.

Sorting by raw totals reshuffles the narrative entirely. California and Texas — the two most populous states — rank #2 and #6 in total convictions but fall below the national average rate (0.63 and 0.61, respectively). Their massive workforces and government bureaucracies generate high raw numbers, but per resident, corruption is less prevalent than in the average state.

Louisiana is the only state that appears in the top 10 on both metrics, reinforcing its position as the most structurally corrupt state in the dataset. New York tops the total list with 2,522 convictions and still carries an above-average rate of 1.30 — much of it concentrated in the Manhattan federal court district, which ranks third nationally behind Chicago and Los Angeles.