San Geronimo is a city located in Marin County California. With a 2020 population of 522, it is the 1150th largest city in California and the 18870th largest city in the United States. San Geronimo is currently growing at a rate of 1.16% annually and its population has increased by 2.35% since the most recent census, which recorded a population of 510 in 2020. Spanning over 2 miles, San Geronimo has a population density of 346 people per square mile.
The average household income in San Geronimo is $137,889 with a poverty rate of 0.00%. The median rental costs in recent years comes to - per month, and the median house value is $891,900. The median age in San Geronimo is 41.2 years, 48.1 years for males, and 40.1 years for females.
According to the most recent ACS, the racial composition of San Geronimowas:
Rate of Home Ownership
Average Family Size
Average Household Size
The highest rate of high school graduation is among hispanic people with a rate of 100.00%.
The highest rate of bachelors degrees is among hispanic people with a rate of 57.14%.
64.67% of San Geronimo residents speak only English, while 35.33% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 35.33% of the population.
Overall Poverty Rate
Male Poverty Rate
Female Poverty Rate
The race most likely to be in poverty in San Geronimo is Other, with NaN% below the poverty level.
The race least likely to be in poverty in San Geronimo is Other, with NaN% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 0.00%. Among those working part-time, it was 0.00%, and for those that did not work, the poverty rate was 0.00%.
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 Geronimo
53.98% of San Geronimo residents were born in the United States, with 23.30% having been born in California. 12.50% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.