Garnet, CA has a population of 6,297 and is the 5,579th largest city in the United States. The population density is 799 per sq mi which is 244% higher than the California average and 782% higher than the national average. The median age in Garnet is 28 which is approximately 22% lower than the California average of 36. In Garnet, 57% of the population over 15 years of age are married, 43% speak English and 56% speak Spanish. 57% of Garnet residents were born in California, 17% were born out of state, 1% were born outside of the United States and 25% were foreign born.