| Grant | Granted | Grantor | Grantee | Area(s) |
|---|
| Rancho Los Nietos | 1784, 1833 partitioned into 5 ranchos | Spanish Governor Pedro Fages, partition by Mexican Governor José Figueroa | José Manuel Nieto | Ranchos: Los Alamitos, Las Bolsas, Los Cerritos, Los Coyotes, Santa Gertrudes, Rancho Palo Alto |
| Santiago de Santa Ana | 1810 | Spanish King Ferdinand VII-Governor José Joaquín de Arrillaga | José Antonio Yorba | Santa Ana, Costa Mesa, Orange, Tustin, El Modena, Olive |
| Cañón de Santa Ana | 1834 | Mexican Governor José Figueroa | Bernardo Yorba | Yorba Linda, Yorba Hacienda |
| Los Alamitos | 1834 | Mexican Governor José Figueroa | Abel Stearns | Los Alamitos, Long Beach, Seal Beach |
| Las Bolsas | 1834 | Mexican Governor José Figueroa | Maria Catarina Ruiz | Huntington Beach, Westminster, Garden Grove, |
| Los Coyotes | 1834 | Mexican Governor José Figueroa | Juan José Nieto | Buena Park, Stanton, Cerritos, La Mirada |
| San Juan Cajón de Santa Ana | 1837 | Mexican Governor Juan Alvarado | Juan Pacífico Ontiveros | Anaheim, Fullerton, Placentia |
| La Habra | 1839 | Mexican Governor Juan Alvarado | Mariano Reyes Roldan | La Habra |
| La Bolsa Chica | 1841 | Mexican Governor Juan Alvarado | Joaquín Ruíz | Bolsa Chica Ecological Reserve, Huntington Beach, Sunset Beach |
| San Joaquín | 1842 | Mexican Governor Juan Bautista Alvarado | José Antonio Andres Sepúlveda | Upper Newport Bay, Newport Beach, Corona del mar, southern Irvine |
| Niguel | 1842 | Mexican Governor Juan Bautista Alvarado | Juan Ávila | Laguna Canyon, Laguna Niguel, Laguna Beach, Laguna Hills, Dana Point |
| Cañada de Los Alisos | | Mexican Governor Juan Bautista Alvarado | Jose Antonio Fernando Serrano | Lake Forest, Irvine, Orange County Great Park, Jose Serrano Adobe, Orange County District 5. |
| Misión Vieja | 1845 | Mexican Governor Pío Pico | John (Don Juan) Forster | Mission Viejo; San Juan Capistrano—(on land to south with no title grant) |
| Boca de la Playa | 1846 | Mexican Governor Pío Pico | Emigdio Vejar | San Clemente; Dana Point and Capistrano Beach—(on land to west with no title grant) |
| Lomas de Santiago | 1846 | Mexican Governor Pío Pico | Teodosio Yorba | Northern Irvine, Silverado, Modjeska Canyon, Black Star Canyon |
| Trabuco | 1846 | Mexican Governor Juan Bautista Alvarado | Santiago Argüello | Trabuco Canyon, Coto de Caza, Trabuco Creek | |