Your TDECU Katy Cinco Ranch Member Center located at 24250 Cinco Ranch Boulevard in Katy, TX at the corner of Cinco Ranch Blvd and Westheimer Pkwy provides lobby and drive-thru services including a deposit-taking ATM, a night drop for deposits, safe deposit boxes, and more. TDECU is a non-profit financial cooperative with $4.8 billion in assets, serving 376,000+ credit union Members with financial products and services. Contact us at (800) 839-1154. Equal Housing Lender. Insured by NCUA.