Arroyo Grande is a city located in California. With a 2020 population of 17,854, it is the 312th largest city in California and the 2043rd largest city in the United States. Arroyo Grande is currently declining at a rate of -0.34% annually but its population has increased by 3.49% since the most recent census, which recorded a population of 17,252 in 2010. Arroyo Grande reached it's highest population of 18,057 in 2017. Spanning over 6 miles, Arroyo Grande has a population density of 3,007 people per square mile.
The average household income in Arroyo Grande is $98,178 with a poverty rate of 6.16%. The median rental costs in recent years comes to $1,459 per month, and the median house value is $591,800. The median age in Arroyo Grande is 44.6 years, 42.4 years for males, and 46.9 years for females. For every 100 females there are 92.2 males.