Cinco Ranch is a census-designated place and master-planned, unincorporated community located in the extraterritorial jurisdiction of Houston within Fort Bend County and Harris County, Texas. The population was 11,196 at the 2000 census. It lies about 25 miles west of Houston and 10 miles north of Richmond. Cinco Ranch is considered to be part of the Greater Katy area and is roughly 10 miles southeast of the city of Katy, Texas. Cinco Ranch apartments for rent comparison page shows most up to date rent information on Cinco Ranch apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.