When Mexico won its independence from Spain in 1821, the territory which is now the State of California became a part of Mexico.
During this time, many more settlers came to the Costa Mesa area and established more ranchos with large herds of cattle on the grassy plains that existed back then.
After two years of war between the United States and Mexico, Mexico was defeated in 1848, and California became part of the United States.
In 1850, California became the 31st state. In less than thirty years, the spot that would one day become Costa Mesa had belonged to Spain, Mexico and the United States.
See Costa Mesa for more information on Costa Mesa, or Costa Mesa real estate values for current property values.