Eldridge, CA has a population of 1,445 and is the 12,912th largest city in the United States. The population density is 2,216 per sq mi which is 854% higher than the California average and 2346% higher than the national average. The median age in Eldridge is 40 which is approximately 11% higher than the California average of 36. In Eldridge, 70% of the population over 15 years of age are married, 81% speak English and 13% speak Spanish. 65% of Eldridge residents were born in California, 18% were born out of state, 2% were born outside of the United States and 15% were foreign born.