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Mercer County

FIPS code

131

County seat

Aledo

Established

1825

Origin

Schuyler County

Etymology

Hugh Mercer (1726-77), British officer in the Seven Years' War and general in the Continental Army during the American Revolutionary War

Population

16,434

Area

561 sq mi
(1,453 km2)

County Information

Aledo (County Seat), Alexis, Eliza, Joy, Keithsburg, Matherville, Millersburg, New Boston, New Windsor, North Henderson, Seaton, Sherrard, Viola