Rosamond, CA has a population of 19,672 and is the 2,215th largest city in the United States. The population density is 377 per sq mi which is 62% higher than the California average and 317% higher than the national average. The median age in Rosamond is 33 which is approximately 8% lower than the California average of 36. In Rosamond, 54% of the population over 15 years of age are married, 73% speak English and 23% speak Spanish. 62% of Rosamond residents were born in California, 24% were born out of state, 2% were born outside of the United States and 12% were foreign born.