The California League is a Class A Advanced minor league baseball league which operates throughout the state of California. Before 2002, it was classified as a "High-A" league, indicating its status as a Class A league with the highest level of competition within that classification, and the fifth step between Rookie ball and the Major Leagues. Although Minor League Baseball, the umbrella organization for Minor Leagues that are affiliated with Major League Baseball, has eliminated the distinction between High-A and other full-season A leagues, most Major League teams still use such leagues as a standard promotion step. A few draftees, generally early-round draftees with college experience, will be assigned to a High-A team upon signing a professional contract, but generally players will not arrive at this level until their third or fourth year of professional play.
There were various attempts in the 1800s and early 1900s to form a California League. The first lasted from 1887-1889, then 1891, 1893, and 1899-1902. After the National Association was formed in 1902, the California League operated outside the NA as an independent in 1902 and again from 1907-1909. Unfortunately this led to huge differences in the quality of teams competing with each other. In 1907 San Francisco was 3-34, while in 1908 San Francisco was 9-67 and Oakland was 4-71. Oakland and San Francisco competed in every year of these various leagues, with San Francisco having two teams 1887-1888.
All of the current teams are playing in stadiums that have been built or extensively renovated since 1990. League attendance continues to increase each season, with over one million fans attending games per year. The league is divided into a Northern Division and a Southern Division.
Lancaster JetHawks (1966-present, as Reno Silver Sox in 1966-81; as Reno Padres in 1982-87; as Reno Silver Sox under affiliation with the Chicago White Sox in 1988-92; as Riverside Pilots under affiliation with the Seattle Mariners in 1993-95; and played some games in Palm Springs).
Modesto Nuts (1946-present, as Modesto Reds in 1946-61; as Modesto Yankees 1962-69, Modesto Cardinals 1970-74 and Modesto A's 1975-2004)
Oakland Oaks (1941, moved to Visalia as a result of World War II 1942-45); Oakland became a Pacific Coast League city, while Visalia Oaks folded by 1944.
Palm Springs Angels (1985-93) before relocation to Lake Elsinore in 1994. Palm Springs was the former spring training camp for the then-California Angels from 1961 to 1993. Palm Springs held other minor league and collegiate teams in the 1990s and 2000s.
Rancho Cucamonga Quakes (1966-present, as Lodi Crushers under affiliation with the San Francisco Giants in 1966-69; as Lodi Padres in 1970-71; as Lodi Orioles in 1972; as Lodi Lions in 1973; as Lodi Orions 1974-75 all under affiliation with the Baltimore Orioles; as Lodi Dodgers in 1976-83; as Lodi Crushers under affiliation with the Seattle Mariners in 1984; merged with a previous team the Ventura County Gulls under affiliation with the San Diego Padres in 1981-82, Toronto Blue Jays in 1983-84 and Seattle Mariners in 1985-86; as San Bernardino Spirit in 1987-92) but another team with the name appeared.
Redding Reds (1940s), folded by onset of World War II.
Reno Silver Sox (1947-64, as Ventura Yankees in 1947-49; as Ventura Braves in 1950-52; as Ventura Oilers in 1953; as Channel Cities Oilers under affiliation with the Milwaukee Braves in 1954-55; moved to Reno during 1955 season; as Reno Oilers in 1955; became Reno Silver Sox during 1955 season) to become Kansas City/Oakland A's and Minnesota Twins affiliate in 1961 to 1969.
Riverside Reds (1941), when the city was the spring training camp for the Cincinnati Reds until the outbreak of World War II.
Sacramento Senators (mid 1940s) but was also a member of the Pacific Coast League.
San Jose Bees (1962-1976) under affiliation of the Oakland A's, Kansas City Royals, Milwaukee Brewers and Seattle Mariners.
San Jose Bees (1983-1987), two team: one under affiliation of the Baltimore Orioles, and the former Fresno team affiliated by the San Francisco Giants.
San Jose Pirates (1958) relocated to Salinas in mid-season and to Las Vegas in 1959.
The Los Angeles area, Riverside, San Bernardino, Palm Springs, Yuma (AZ) and Las Vegas (NV) were also major league spring training site cities, as well possessed California League teams on different occasions.
Cities that have had California League Teams (current in bold)
