And by 1850 when we actually started to bother to take note of things like how many beans were in our proverbial burrito, 1,610 of those people in LA were recorded as Mexicans.
To put that in context, Columbos, OH in 1850 had a population of 17,882. To call Los Angeles's dinky little population of anything "huge" is a violent rape of the English language.
Acting like beaners have "invaded" places like California, Arizona, New Mexico and Texas is just silliness. They've always prominently been there because that's where they lived before we made those territories our states.
I can't tell if you're coping because you didn't know anything about Mexican Cession demographics until just now, or just retarded, so I'll break it down for you.
The Mexican Cession was the desert rump of New Spain, a backwater that had more Indians than whites and mestizos combined--and those Indians are still there. The Apaches, Navajo, etc, are still around and don't like spics. Los Angeles was a dusty little mission town where basically nobody lived. This is a contemporary sketch of Los Angeles in 1847:
Mid-19th C Los Angeles's population is as related to today's as New Amsterdam's population is to modern NYC's: it isn't. The beaners that have swarmed all over California, Texas, New Mexico, and Arizona aren't descendants of the roughly 10,000 non-Indians, i.e. predominantly white, Mexicans who lived there when we annexed the territory. Nearly every single spic in this country is or is descended from migrant laborers who came here after WWII, and whose last ancestor hadn't set foot in the American Southwest since the 11th century at the latest, if not the Ice Age. It is worth noting that after the Mexican war, we chose
not to annex what we now know as Mexico because of its large brown population. The Cession was Indian tribes and whites.
It would be like if 4 million people moved from the Netherlands to NYC in the last few decades, and some retard kept saying, "New York City has always had an enormous Dutch population," since there were like 2000 Dutchmen in New Amsterdam when the English took over. It would be disingenuous and stupid, because no, the modern Dutch have basically no relationship at all to the tiny group of people that was there long ago and since dissolved into the broader American population.
Los Angeles was nowhere until the oil boom of the late 19th century, when droves of white Americans descended on California. It was a white city until it was saturated with beaners in the 2nd half of the 20th century due to liberal do-gooders and business men searching for cheap labor.