Santa Clara is a community in Lane County, Oregon, United States, part of which is a neighborhood of the city of Eugene, but most of which is an unincorporated area. Prior to a number of partial annexations by the city between 1990 and 2005, Santa Clara was an unincorporated community and census-designated place in Lane County. Its current population is approximately 13,000.According to U.S. Census Bureau figures, the racial composition of Santa Clara's population is 91 percent white, 0.8 percent black, 1.2 percent American Indian, 1.2 percent Asian, 0.2 percent Pacific Islander, 2.2 percent some other race, and 3.4 percent two or more races.