Petaluma is a city located in Sonoma County California. With a 2020 population of 57,908, it is the 157th largest city in California and the 676th largest city in the United States . Petaluma is currently declining at a rate of -2.21% annually and its population has decreased by -0.06% since the most recent census, which recorded a population of 57,941 in 2010. Petaluma reached it's highest population of 61,826 in 2018. Spanning over 15 miles, Petaluma has a population density of 4,017 people per square mile.
The average household income in Petaluma is $118,520 with a poverty rate of 6.70%. The median rental costs in recent years comes to $1,830 per month, and the median house value is $633,900. The median age in Petaluma is 41.7 years, 39.3 years for males, and 43.4 years for females.