Searching for an apartment near San Mateo, CA? Welcome to Sugarloaf, a densely populated neighborhood near San Mateo, CA. Residents are highly educated, with many having postgraduate degrees. The average commute in this neighborhood takes about 30 minutes. Residents of Sugarloaf will want to have a car, because 87% of residents get around by car. For renters who prefer a quiet neighborhood, less than half of households have kids.