capita incomes are located in the Central Valley. Two of the remaining three are rural counties in Northern California. This leaves Imperial County, which shares California's portion of the U.S.-Mexico border with San Diego County. All of these counties had populations not exceeding 1,000,000, and all of them are landlocked, with the exception of Del Norte County. Of counties with a population exceeding 1,000,000, Santa Clara County had the highest per capita income ($42,666), followed by Contra Costa County ($38,770). San Diego ($31,043), Los Angeles ($27,987), and Sacramento ($27,071) counties all had per capita incomes near that of the state. Places California places were unlike counties insofar as places with per capita incomes below and above the state average had about the same average population and population density. Like counties however, the lowest-income places tended to be located in the Central Valley, and the highest-income places were concentrated in the San Francisco Bay Area. San Francisco is an extreme example of a place in California with both a large population (829,072) and high per capita income ($49,986). In fact, it has the highest per capita income of all places in California with a population of over 100,000. Though Sunnyvale ($48,203), San Mateo ($46,782), Thousand Oaks ($46,231), and Carlsbad ($44,305) join San Francisco to make up the top five places in California with the highest per capita income in that population class, none of them have populations even close to San Francisco. The next place with a population similar to that of San Francisco that appears in the per capita income rankings is San Jose ($34,992), and at this point, the difference in per capita income with the entire state of California is only about $5,000. Seven of the ten places with the lowest per capita income and a population of over 50,000 were in Los Angeles County, and East Los Angeles has the highest population among them (127,610). See also California California locations by crime rate California locations by race California locations by voter registration Economy of California Economy of the United States List of U.S. states by income Notes References United States locations by per capita income Locations by income Income Economy of the United States-related lists Income