San Buenaventura (Ventura), CA has a population of 109,067 and is the 268th largest city in the United States. The population density is 5,000 per sq mi which is 2051% higher than the California average and 5418% higher than the national average. The median age in San Buenaventura (Ventura) is 39 which is approximately 8% higher than the California average of 36. In San Buenaventura (Ventura), 54% of the population over 15 years of age are married, 73% speak English and 22% speak Spanish. 63% of San Buenaventura (Ventura) residents were born in California, 21% were born out of state, 1% were born outside of the United States and 15% were foreign born.