Cudahy, CA has a population of 24,106 and is the 1,806th largest city in the United States. The population density is 20,516 per sq mi which is 8728% higher than the California average and 22544% higher than the national average. The median age in Cudahy is 27 which is approximately 24% lower than the California average of 36. In Cudahy, 43% of the population over 15 years of age are married, 7% speak English and 92% speak Spanish. 51% of Cudahy residents were born in California, 2% were born out of state, 1% were born outside of the United States and 45% were foreign born.