San Dimas is a city located in California. With a 2020 population of 33,101, it is the 230th largest city in California and the 1190th largest city in the United States. San Dimas is currently declining at a rate of -0.78% annually and its population has decreased by -0.81% since the most recent census, which recorded a population of 33,371 in 2010. San Dimas reached it's highest population of 34,980 in 2000. Spanning over 15 miles, San Dimas has a population density of 2,201 people per square mile.
The average household income in San Dimas is $105,480 with a poverty rate of 9.28%. The median rental costs in recent years comes to $1,808 per month, and the median house value is $576,800. The median age in San Dimas is 41.3 years, 40.6 years for males, and 42.2 years for females. For every 100 females there are 86.5 males.