Ln, Balfour Rd, Chestnut St, Byron Highway, Orwood Rd, Burlington Northern Santa Fe, Werner Dredger Cut, and Rock Slough. The 10th district takes in the south sides of the cities of Antioch and Martinez, the cities of Concord, Brentwood, Oakley, Pleasant Hill, Clayton, Walnut Creek, Lafayette, Orinda, and San Ramon, as well as the towns of Danville and Moraga. Alameda County is split between this district and the 14th district. They are partitioned by Sinclair Freeway, Amador Valley Blvd, Emerald Ave, Tamarack Dr, Brighton Dr, Ione Way, Newcastle Ln, Dougherty Rd, Highway 580, Lembert Hills Dr. The 10th district takes in San Ramon Village and Komandorski Village. Cities & CDP with 10,000 or more people Concord - 129,295 Antioch - 115,291 San Ramon - 84,605 Walnut Creek - 70,127 Brentwood - 64,292 Danville - 43,582 Oakley - 43,357 Martinez - 38,290 Pleasant Hill - 34,613 Lafayette - 25,391 Orinda - 19,514 Moraga - 16,870 Clayton - 11,070 List of members representing the district Election results for representatives 1912 1914 1916 (Special) 1916 1918 1920 1922 1923 (Special) Republican John D. Fredericks won the special election to replace fellow Republican Henry Z. Osborne, who died in office. 1924 1926 1928 1930 1932 1934 1936 1937 (Special) Democrat Alfred J. Elliott won the special election to replace fellow Democrat Henry E. Stubbs, who died in office. 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2009 (Special) 2010 2012 2014 2016 2018 2020 See also List of United States congressional districts References External links GovTrack.us: California's 10th congressional district RAND California Election Returns: District Definitions (out of date) California Voter Foundation map - CD10 (out of date) 10 Government of San Joaquin County, California Government of Stanislaus County, California San Joaquin Valley Ceres, California Modesto, California Oakdale, California Tracy, California Turlock, California Constituencies established in 1913 1913 establishments in California