California 40th Assembly District Cities within the 40th Assembly District 165269 Rancho Cucamonga 68747 Redlands 53104 Highland 23261 Loma Linda 8720 Mentone San Bernardino (Percentage of the city) 68 29233 San Bernardino – Ward 4 30081 San Bernardino – Ward 5 29915 San Bernardino – Ward 7 (Portion) The 40th covers all or portions of Rancho Cucamonga, Redlands, Highland, Loma Linda, Mentone and San Bernardino.