The retrograde morons who populate the comment sections of the Orange County Register never miss an opportunity to claim that Santa Ana is Little Mexico. Now, we have no problem with that designation–the city's got a Latino-only council, there's a (much-maligned) Consulate of Mexico on Broadway, and as you walk down
Fourth Street La Cuatro, the hawkers are telling you what's available in Spanish–but there's no way this is a Mexican town, not without a mercado.
The need is going to be met: the East End Partners, the redevelopers of the area along East Fourth Street formerly called the Fiesta Marketplace, are planning to change that with a large market space to be built out over next year or so. They're still working out a catchy name for it, but they have time: it's supposed to open in early 2014.