Forestville, CA has a population of 3,514 and is the 8,031st largest city in the United States. The population density is 668 per sq mi which is 188% higher than the California average and 638% higher than the national average. The median age in Forestville is 52 which is approximately 44% higher than the California average of 36. In Forestville, 49% of the population over 15 years of age are married, 88% speak English and 9% speak Spanish. 62% of Forestville residents were born in California, 27% were born out of state, 1% were born outside of the United States and 10% were foreign born.