Cinco Ranch is the most established and largest master-planned community in Katy TX, spanning 8,092 acres across two ZIP codes (77450 and 77494) and two HOAs. Specifically, the community began development in 1991 and has grown to include over 11 community pools, an 18-hole golf course designed in the Jack Nicklaus tradition, 40,000-square-foot YMCA, South Lake and Park Lake, a network of greenbelt trails, tennis courts, and resort-style waterparks. Furthermore, Cinco Ranch is ranked as one of the top 20 master-planned communities in the country and is zoned to Katy ISD throughout.

Home prices in Cinco Ranch range from approximately $320K to $1.08M, with the current median sales price in the 77450 section at approximately $565K — up 9% recently. Cinco Ranch 77450 is primarily established resale from 1991 to 2004. Cinco Ranch Southwest (77494) has newer sections with active construction phases. The typical home in Cinco Ranch 77450 is approximately 3,229 square feet with 4 bedrooms on a 9,066 sq ft lot — notably larger lots than many newer Katy developments. Additionally, Cinco Ranch’s Avalon luxury sections — Avalon at Seven Meadows, Avalon at Pine Mill, Avalon at Spring Green — are gated luxury communities within the broader master plan ranging above $600K.

Cross Creek Ranch is a 3,200-acre eco-focused master-planned community in Fulshear — technically southwest of Katy but part of the same residential corridor. Specifically, it features 45+ miles of trails, 650 acres of lakes, parks, and open green spaces, and natural habitats including a 50-acre polishing pond for Texas wildlife. Furthermore, Cross Creek Ranch is zoned to both Katy ISD and Lamar Consolidated ISD depending on address — buyers must verify their specific assignment. New construction and established resale are both available.

Elyson is a 3,642-acre master-planned community created by the same developers as Cinco Ranch, located off FM 529 and Grand Parkway. Specifically, Elyson commits over 750 acres to parks, trails, lakes, and open spaces, with active builder phases and new schools opening. Two new elementary schools — Boudny Elementary and Cross Elementary — opened in August 2025. Elyson is primarily within Katy ISD, with some sections in Waller ISD. Home prices range from approximately $230K to $650K. Firethorne is a 1,400-acre community just south of I-10 near the Grand Parkway with lake amenities, resort-style pools, and trail systems, serving both Katy ISD and Lamar ISD.

Cane Island is a 1,100-acre resort-style community near I-10 and Bartlett Road with a distinctive exotic-animal sanctuary, tree-lined parkways, two-story fitness center, adult and family pools, splash pad, and a community café and lounge. Specifically, Cane Island is zoned to Katy ISD and attracts buyers who want the most creative and resort-oriented amenity experience in the Katy corridor. Home prices typically range from the mid $300Ks to $600Ks for active phases.

Seven Meadows is an established luxury enclave within the Cinco Ranch master plan, home to the highly-regarded Seven Lakes High School that has consistently ranked among Katy ISD’s strongest academic campuses. The Avalon at Seven Meadows section is a gated luxury community within this area. Additionally, established value-oriented communities — Cimarron, Governors Place, Grand Lakes, Green Trails — offer Katy TX living with strong I-10 and Grand Parkway access at price points from $270K to $450K.

For community-specific guides, see our deep dives on Cinco Ranch, Elyson, Firethorne, and Cross Creek Ranch.