Stanislaus County, California

Stanislaus County is a county located in the Central Valley of the U.S. state of California. As of the 2010 census, the population was 514,453. The county seat is Modesto.Stanislaus County comprises the Modesto Metropolitan Statistical Area.The first European to see it was Gabriel Moraga in 1806. It was later named Rio Estanislao in honor of Estanislao, a mission-educated renegade Native American chief who led a band of Native Americans in a series of battles against Mexican troops until finally being defeated by General Mariano Vallejo in 1826. Estanislao was his baptismal name, the Spanish version of Stanislaus, itself the Latin version of the name of an 11th-century Polish Catholic Saint Stanislaus the Martyr.Between 1843 and 1846, when California was a province of independent Mexico, five Mexican land grants totaling 113135acre were granted in Stanislaus County. Rancho Orestimba y Las Garzas, Rancho Pescadero and Rancho Del Puerto were located on the west side of the San Joaquin River, and Rancho Del Rio Estanislao and Rancho Thompson on the north side of the Stanislaus River. Additionally, in 1844 Salomon Pico received a Mexican land grant of 58000acre in the San Joaquin Valley, somewhere near the Stanislaus River and the San Joaquin River in what is now Stanislaus County. However, the grant was never confirmed by the Land Commission.