Chester, CA has a population of 2,195 and is the 10,497th largest city in the United States. The population density is 301 per sq mi which is 30% higher than the California average and 232% higher than the national average. The median age in Chester is 48 which is approximately 32% higher than the California average of 36. In Chester, 61% of the population over 15 years of age are married, 94% speak English and 3% speak Spanish. 73% of Chester residents were born in California, 21% were born out of state, 2% were born outside of the United States and 4% were foreign born.