The state with the largest income gap in 2016 was New York, according to the most recent data available from the U.S. Census Bureau's American Community Survey. Other populous states, including California, Florida and Texas, also had relatively large gaps; Alaska had the least income inequality. Income inequality rose in every state between 2010 and 2016.
Source: Chris Kolmar, “These Are the States with the Highest (and Lowest) Income Inequality,” Zippia, March 2018, https://tinyurl.com/wpvhalm
Data for the graphic are as follows:
| State | 2016 National Income Inequality Ranking |
| Alabama | 9 |
| Alaska | 50 |
| Arkansas | 18 |
| Arizona | 20 |
| California | 4 |
| Colorado | 29 |
| Connecticut | 2 |
| Delaware | 39 |
| Florida | 5 |
| Georgia | 7 |
| Hawaii | 46 |
| Idaho | 40 |
| Illinois | 10 |
| Indiana | 37 |
| Iowa | 44 |
| Kansas | 33 |
| Kentucky | 16 |
| Louisiana | 3 |
| Maine | 35 |
| Maryland | 36 |
| Massachusetts | 6 |
| Michigan | 24 |
| Minnesota | 38 |
| Mississippi | 9 |
| Missouri | 26 |
| Montana | 30 |
| Nebraska | 45 |
| Nevada | 34 |
| New Hampshire | 47 |
| New Jersey | 12 |
| New Mexico | 14 |
| New York | 1 |
| North Carolina | 15 |
| North Dakota | 31 |
| Ohio | 25 |
| Oklahoma | 23 |
| Oregon | 28 |
| Pennsylvania | 21 |
| Rhode Island | 17 |
| South Carolina | 19 |
| South Dakota | 41 |
| Tennessee | 11 |
| Texas | 8 |
| Utah | 49 |
| Vermont | 42 |
| Virginia | 22 |
| Washington | 32 |
| West Virginia | 27 |
| Wisconsin | 42 |
| Wyoming | 48 |