​NOBLESVILLE, a city and the county-seat of Hamilton county, Indiana, U.S.A., on the White river, about 20 m. N. by E. of Indianapolis. Pop. (1890) 3054; (1900) 4792 (226 negroes); (1910) 5073, It is served by the Lake Erie & Western, the Central Indiana and the Indiana Union (electric) Traction railways. It is in the natural gas region of the state, and has various manufactures. It was settled about 1825 and incorporated as a town in 1851.