Garden Grove, CA has a population of 174,676 and is the 143rd largest city in the United States. The population density is 9,727 per sq mi which is 4086% higher than the California average and 10637% higher than the national average. The median age in Garden Grove is 37 which is approximately 4% higher than the California average of 36. In Garden Grove, 54% of the population over 15 years of age are married, 33% speak English and 29% speak Spanish. 46% of Garden Grove residents were born in California, 9% were born out of state, 1% were born outside of the United States and 44% were foreign born.