Yreka, CA has a population of 7,598 and is the 4,882nd largest city in the United States. The population density is 761 per sq mi which is 227% higher than the California average and 740% higher than the national average. The median age in Yreka is 37 which is approximately 3% higher than the California average of 36. In Yreka, 52% of the population over 15 years of age are married, 95% speak English and 3% speak Spanish. 63% of Yreka residents were born in California, 33% were born out of state, 0% were born outside of the United States and 3% were foreign born.