Cypress is an unincorporated community in Harris County, Texas, United States, located completely inside the extraterritorial jurisdiction of the City of Houston. The Cypress area is located along U.S. Route 290 is twenty-four miles (35 km) northwest of Downtown Houston. The Cypress urban cluster ranks 50th in the top 100 highest-income urban areas in the United States.

Harris County is a county located in the U.S. state of Texas; as of the 2020 census, the population was 4,731,145, making it the most populous county in Texas and the third-most populous county in the United States. Its county seat is Houston, the most populous city in Texas and fourth-most populous city in the United States. The county was founded in 1836 and organized in 1837. It is named for John Richardson Harris, who founded the town of Harrisburg on Buffalo Bayou in 1826. According to the July 2022 census estimate, Harris County's population has shifted to 4,780,913 comprising over 16% of Texas's population. Harris County is included in the nine-county Houston–The Woodlands–Sugar Land metropolitan statistical area, which is the fifth-most populous metropolitan area in the United States.