15. Which Great Plains state has the Presidentially-named counties of Adams, Fillmore, Garfield, Grant, Hayes, Jefferson, Johnson, Lincoln, Madison, Pierce, Polk, and Washington?
From Quiz States By The County
Answer:
Nebraska
Nebraska also has a number of other counties named after famous Americans. Webster County is named after Daniel Webster. Sherman County was named for Gen. William Tecumseh Sherman. Greeley County got its name for Horace Greeley. Franklin County is named after Benjamin Franklin. Finally, Hamilton County was named for Alexander Hamilton.