2026 Compare Cities Overview:
Castaic, CA vs Round Rock, TX

Are people in Round Rock older or younger than people in Castaic?
- The Median Age in Round Rock is 2.6 years younger than in Castaic.

Are housing costs cheaper in Round Rock or Castaic?
- Round Rock housing costs are 39.8% less expensive than Castaic housing costs.

Which city has a longer commute, Round Rock or Castaic?
- The average commute for residents of Round Rock is 5.1 minutes shorter than it is for residents of Castaic.

Things to do in Castaic?
Castaic is an unincorporated community located in Los Angeles County, California with an estimated population around 20,000 people as of 2020. The area offers residents a range of amenities and services including healthcare centers and educational facilities while also serving up plenty of outdoor activities such as boating and fishing on nearby Pyramid Lake among other opportunities for recreation.

Things to do in Round Rock?
Round Rock, Texas is a vibrant city in Williamson County. With its lush parks and trails, excellent shopping and dining options, and a plethora of local attractions, Round Rock has something for everyone. Nature lovers will have plenty to explore here while business owners can take advantage of the many resources available in the area. Education is also top-notch in Round Rock with numerous schools, universities, and medical centers close by. Whether you’re looking for a new home or simply wanting to enjoy a unique experience, Round Rock is sure to offer it!