Shasta, CA has a population of 1,737 and is the 11,861st largest city in the United States. The population density is 159 per sq mi which is 32% lower than the California average and 75% higher than the national average. The median age in Shasta is 53 which is approximately 47% higher than the California average of 36. In Shasta, 72% of the population over 15 years of age are married, 94% speak English and 3% speak Spanish. 73% of Shasta residents were born in California, 23% were born out of state, 0% were born outside of the United States and 4% were foreign born.