| Border | % Correct |
|---|---|
| Arizona-California | 100%
|
| Arizona-Utah | 100%
|
| Arkansas-Missouri | 100%
|
| California-Nevada | 100%
|
| Colorado-Kansas | 100%
|
| Idaho-Oregon | 100%
|
| Indiana-Kentucky | 100%
|
| Iowa-Minnesota | 100%
|
| Minnesota-North Dakota | 100%
|
| Missouri-Nebraska | 100%
|
| Montana-South Dakota | 100%
|
| Nevada-Oregon | 100%
|
| New Mexico-Texas | 100%
|
| South Dakota-Wyoming | 100%
|
| Missouri-Oklahoma | 90%
|
| North Dakota-South Dakota | 90%
|
| Idaho-Montana | 89%
|
| Louisiana-Texas | 89%
|
| Montana-Wyoming | 89%
|
| Utah-Wyoming | 89%
|
| Arkansas-Oklahoma | 88%
|
| Iowa-Nebraska | 88%
|
| Iowa-South Dakota | 88%
|
| Kansas-Missouri | 88%
|
| Nevada-Utah | 88%
|
| Alabama-Mississippi | 86%
|
| Arkansas-Tennessee | 86%
|
| Idaho-Nevada | 86%
|
| Illinois-Iowa | 86%
|
| Iowa-Wisconsin | 86%
|
| Kentucky-Ohio | 86%
|
| California-Oregon | 83%
|
| Idaho-Washington | 83%
|
| Minnesota-Wisconsin | 83%
|
| Oklahoma-Texas | 83%
|
| Arizona-Nevada | 80%
|
| Arkansas-Louisiana | 80%
|
| Arkansas-Texas | 80%
|
| Mississippi-Tennessee | 80%
|
| Montana-North Dakota | 80%
|
| Arkansas-Mississippi | 78%
|
| Minnesota-South Dakota | 78%
|
| Oregon-Washington | 78%
|
| Georgia-North Carolina | 75%
|
| Idaho-Utah | 75%
|
| Illinois-Missouri | 75%
|
| Kentucky-Tennessee | 75%
|
| Maryland-West Virginia | 75%
|
| Massachusetts-New York | 75%
|
| Massachusetts-Vermont | 75%
|
| Nebraska-South Dakota | 75%
|
| Georgia-Tennessee | 73%
|
| Louisiana-Mississippi | 73%
|
| Nebraska-Wyoming | 73%
|
| Alabama-Georgia | 71%
|
| Kansas-Nebraska | 70%
|
| Arizona-New Mexico | 67%
|
| Colorado-Utah | 67%
|
| Colorado-Wyoming | 67%
|
| Connecticut-New York | 67%
|
| Missouri-Tennessee | 67%
|
| New Hampshire-Vermont | 67%
|
| Florida-Georgia | 63%
|
| North Carolina-South Carolina | 63%
|
| Ohio-Pennsylvania | 63%
|
| Delaware-Maryland | 60%
|
| Illinois-Wisconsin | 57%
|
| Indiana-Ohio | 57%
|
| Illinois-Indiana | 56%
|
| Michigan-Wisconsin | 56%
|
| Ohio-West Virginia | 56%
|
| Indiana-Michigan | 55%
|
| Colorado-Oklahoma | 50%
|
| Connecticut-Rhode Island | 50%
|
| Idaho-Wyoming | 50%
|
| Illinois-Kentucky | 50%
|
| Kansas-Oklahoma | 50%
|
| New Jersey-Pennsylvania | 50%
|
| New York-Vermont | 50%
|
| North Carolina-Virginia | 50%
|
| Virginia-West Virginia | 50%
|
| Maryland-Virginia | 44%
|
| Pennsylvania-West Virginia | 44%
|
| Maine-New Hampshire | 43%
|
| Michigan-Ohio | 43%
|
| Tennessee-Virginia | 42%
|
| Alabama-Florida | 40%
|
| Colorado-Nebraska | 40%
|
| New Mexico-Oklahoma | 38%
|
| Iowa-Missouri | 33%
|
| New Jersey-New York | 33%
|
| Delaware-Pennsylvania | 29%
|
| Kentucky-Missouri | 29%
|
| Connecticut-Massachusetts | 25%
|
| Georgia-South Carolina | 25%
|
| Kentucky-West Virginia | 25%
|
| Maryland-Pennsylvania | 25%
|
| Massachusetts-New Hampshire | 25%
|
| Massachusetts-Rhode Island | 25%
|
| New York-Pennsylvania | 25%
|
| North Carolina-Tennessee | 25%
|
| Alabama-Tennessee | 20%
|
| Colorado-New Mexico | 20%
|
| Kentucky-Virginia | 0%
|