Los Berros (Spanish for The Watercresses)[4] is a census-designated place in San Luis Obispo County, California.

[2] The 2010 United States census reported Los Berros's population was 641.

According to the United States Census Bureau, the CDP covers an area of 2.5 square miles (6.5 km2), all of it land.

The 2010 United States Census[5] reported that Los Berros had a population of 641.

There were 233 housing units at an average density of 92.8 per square mile (35.8/km2), of which 144 (68.2%) were owner-occupied, and 67 (31.8%) were occupied by renters.