The number of people in their late 20s to early 40s is extremely large while the number of middle aged adults is large. Redondo Beach (zip 90278)'s population is 39,481 people. Redondo Beach has 11 cell towers within 25 miles of the city center. California is the 3rd largest state by total land area, with a land area of 163,695 square miles (423,968 square kilometers) and has a total population of 39,346,023 people as of the most recent U.S. Census survey. Demographic and housing estimates in Redondo Beach, CA Social characteristics in Redondo Beach, CA Economic characteristics in Redondo Beach, CA Population . Since 2020, it has had a population growth of 1.8%. D - Default - This is the "preferred" name - by the USPS - for a city. 90278 is a densely populated, upscale urban zip code in Redondo Beach, California. Having to travel to work for over 45 minutes isn't uncommon for people who live here. to print your map. Allowed HTML tags: