San Carlos is a city located in San Mateo County California. With a 2020 population of 31,186, it is the 265th largest city in California and the 1464th largest city in the United States. San Carlos is currently growing at a rate of 0.75% annually and its population has increased by 1.51% since the most recent census, which recorded a population of 30,722 in 2020. Spanning over 6 miles, San Carlos has a population density of 5,656 people per square mile.
The average household income in San Carlos is $239,376 with a poverty rate of 3.19%. The median rental costs in recent years comes to $2,423 per month, and the median house value is $1.76 Mn. The median age in San Carlos is 41.8 years, 40.5 years for males, and 43.2 years for females.
According to the most recent ACS, the racial composition of San Carloswas:
Rate of Home Ownership
Average Family Size
Average Household Size
The highest rate of high school graduation is among native american people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 84.77%.
77.13% of San Carlos residents speak only English, while 22.87% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 9.58% of the population.
Overall Poverty Rate
Male Poverty Rate
Female Poverty Rate
The race most likely to be in poverty in San Carlos is Islander, with 36.99% below the poverty level.
The race least likely to be in poverty in San Carlos is Multiple, with 0.53% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.06%. Among those working part-time, it was 5.06%, and for those that did not work, the poverty rate was 7.74%.
Number of Veterans
Veteran Poverty Rate
Veteran Disability Rate
Labor Force Participation
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Born in San Carlos
78.29% of San Carlos residents were born in the United States, with 53.64% having been born in California. 8.22% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.