Southwest Ranches, FL has a population of 7,745 and is the 4,815th largest city in the United States. The population density is 589 per sq mi which is 100% higher than the Florida average and 550% higher than the national average. The median age in Southwest Ranches is 43 which is approximately 4% higher than the Florida average of 42. In Southwest Ranches, 61% of the population over 15 years of age are married, 69% speak English and 25% speak Spanish. 44% of Southwest Ranches residents were born in Florida, 25% were born out of state, 2% were born outside of the United States and 29% were foreign born.