Yettem, CA has a population of 353 and is the 21,558th largest city in the United States. The population density is 2,300 per sq mi which is 890% higher than the California average and 2438% higher than the national average. The median age in Yettem is 12 which is approximately 68% lower than the California average of 36. In Yettem, 0% of the population over 15 years of age are married, 0% speak English and 100% speak Spanish. 77% of Yettem residents were born in California, 0% were born out of state, 7% were born outside of the United States and 16% were foreign born.