| Serial | State Name | Bordering States Name | Number of bordering states |
| 1 | Alabama | Florida, Georgia, Mississippi, Tennessee | 4 |
| 2 | Alaska | None | None |
| 3 | Arizona | California, Colorado, Nevada, New Mexico, Utah | 5 |
| 4 | Arkansas | Louisiana, Mississippi, Missouri, Oklahoma, Tennessee, Texas | 6 |
| 5 | California | Arizona, Nevada, Oregon | 3 |
| 6 | Colorado | Arizona, Kansas, Nebraska, New Mexico, Oklahoma, Utah, Wyoming | 7 |
| 7 | Connecticut | Massachusetts, New York, Rhode Island | 3 |
| 8 | Delaware | Maryland, New Jersey, Pennsylvania | 3 |
| 9 | Florida | Alabama, Georgia | 2 |
| 10 | Georgia | Alabama, Florida, North Carolina, South Carolina, Tennessee | 5 |
| 11 | Hawaii | None | None |
| 12 | Idaho | Montana, Nevada, Oregon, Utah, Washington, Wyoming | 6 |
| 13 | Illinois | Indiana, Iowa, Michigan, Kentucky, Missouri, Wisconsin | 6 |
| 14 | Indiana | Illinois, Kentucky, Michigan, Ohio | 4 |
| 15 | Iowa | Illinois, Minnesota, Missouri, Nebraska, South Dakota, Wisconsin | 6 |
| 16 | Kansas | Colorado, Missouri, Nebraska, Oklahoma | 4 |
| 17 | Kentucky | Illinois, Indiana, Missouri, Ohio, Tennessee, Virginia, West Virginia | 7 |
| 18 | Louisiana | Arkansas, Mississippi, Texas | 3 |
| 19 | Maine | New Hampshire | 1 |
| 20 | Maryland | Delaware, Pennsylvania, Virginia, West Virginia | 4 |
| 21 | Massachusetts | Connecticut, New Hampshire, New York, Rhode Island, Vermont | 5 |
| 22 | Michigan | Illinois, Indiana, Minnesota (water border), Ohio, Wisconsin | 5 |
| 23 | Minnesota | Iowa, Michigan (water border), North Dakota, South Dakota, Wisconsin | 5 |
| 24 | Mississippi | Alabama, Arkanssas, Louisiana, Tennessee | 4 |
| 25 | Missouri | Arkansas, Illinois, Iowa, Kansas, Kentucky, Nebraska, Oklahoma, Tennessee | 8 |
| 26 | Montana | Idaho, North Dakota, South Dakota, Wyoming | 4 |
| 27 | Nebraska | Colorado, Iowa, Kansas, Missouri, South Dakota, Wyoming | 6 |
| 28 | Nevada | Arizona, California, Idaho, Oregon, Utah | 5 |
| 29 | New Hampshire | Maine, Massachusetts, Vermont | 3 |
| 30 | New Jersey | Delaware, New York, Pennsylvania | 3 |
| 31 | New Mexico | Arizona, Colorado, Oklahoma, Texas, Utah | 5 |
| 32 | New York | Connecticut, Massachusetts, New Jersey, Pennsylvania, Rhode Island (water border), Vermont | 6 |
| 33 | North Carolina | Georgia, South Carolina, Tennessee, Virginia | 4 |
| 34 | North Dakota | Minnesota, Montana, South Dakota | 3 |
| 35 | Ohio | Indiana, Kentucky, Michigan, Pennsylvania, West Virginia | 5 |
| 36 | Oklahoma | Arkansas, Colorado, Kansas, Missouri, New Mexico, Texas | 6 |
| 37 | Oregon | California, Idaho, Nevada, Washington | 4 |
| 38 | Pennsylvania | Delaware, Maryland, New Jersey, New York, Ohio, West Virginia | 6 |
| 39 | Rhode Island | Connecticut, Massachusetts, New York (water border) | 3 |
| 40 | South Carolina | Georgia, North Carolina | 2 |
| 41 | South Dakota | Iowa, Minnesota, Montana, Nebraska, North Dakota, Wyoming | 6 |
| 42 | Tennessee | Alabama, Arkansas, Georgia, Kentucky, Mississippi, Missouri, North Carolina, Virginia | 8 |
| 43 | Texas | Arkansas, Louisiana, New Mexico, Oklahoma | 4 |
| 44 | Utah | Arizona, Colorado, Idaho, Nevada, New Mexico, Wyoming | 6 |
| 45 | Vermont | Massachusetts, New Hampshire, New York | 3 |
| 46 | Virginia | Kentucky, Maryland, North Carolina, Tennessee, West Virginia | 5 |
| 47 | Washington | Idaho, Oregon | 2 |
| 48 | West Virginia | Kentucky, Maryland, Ohio, Pennsylvania, Virginia | 5 |
| 49 | Wisconsin | Illinois, Iowa, Michigan, Minnesota | 4 |
| 50 | Wyoming | Colorado, Idaho, Montana, Nebraska, South Dakota, Utah | 6 |
✅ What US state has no borders?
Alaska and Hawaii haven’t any borders with other U.S. state.
