Collierville, CA has a population of 2,318 and is the 10,223rd largest city in the United States. The population density is 351 per sq mi which is 51% higher than the California average and 288% higher than the national average. The median age in Collierville is 41 which is approximately 13% higher than the California average of 36. In Collierville, 62% of the population over 15 years of age are married, 58% speak English and 40% speak Spanish. 61% of Collierville residents were born in California, 18% were born out of state, 2% were born outside of the United States and 19% were foreign born.