| States | River | % Correct |
|---|---|---|
| Arkansas, Illinois, Iowa, 7 others | Mississippi | 98%
|
| Iowa, Kansas, Missouri, 2 others | Missouri | 93%
|
| Illinois, Kentucky, Ohio, 2 others | Ohio | 87%
|
| Arizona, California, Nevada | Colorado | 83%
|
| New Jersey, New York | Hudson | 80%
|
| New Mexico, Texas | {Rio} {Grande} | 80%
|
| Oregon, Washington | Columbia | 72%
|
| DC, Virginia, 2 others | Potomac | 71%
|
| Delaware, New Jersey, 2 others | Delaware | 67%
|
| Idaho, Oregon, Washington | Snake | 64%
|
| Kentucky, Tennessee, 2 others | Tennessee | 52%
|
| New Hampshire, Vermont | Connecticut | 44%
|
| Minnesota, North Dakota | {Red} River of the {North} | 37%
|
| Arkansas, Oklahoma, Texas | {Red} River of the {South} | 37%
|
| Georgia, South Carolina | Savannah | 37%
|
| Illinois, Indiana | Wabash | 30%
|
| Alabama, Georgia | Chattahoochee | 27%
|
| Minnesota, Wisconsin | {St} {Croix} | 17%
|
| Louisiana, Mississippi | Pearl | 14%
|
| Florida, Georgia | {St} {Marys} | 10%
|
| Kentucky, Virginia, West Virginia | {Tug} {Fork} | 5%
|
| Minnesota, N Dakota, S Dakota | {Bois} {de} {Sioux} | 4%
|
| Maine, New Hampshire | Piscataqua | 3%
|
| Maine, New Hampshire | {Salmon} {Falls} | 2%
|