As of April 2025, the average rent in Katy, TX is $1,351 per month, which is 14% lower than the national average of $1,576. Rent prices for different apartment types include approximately $1,229 for a studio, $1,351 for a one-bedroom, and around $1,752 for a two-bedroom. A three-bedroom rental may cost $2,271 or more. Over the past year, rent in Katy has decreased by 1.7%, averaging $22 less per month.