Your TDECU Pasadena Preston Avenue Member Center located at 322 Preston Avenue in Pasadena, Texas is here to provide lobby and drive-thru services, coin counting, safe deposit boxes, and more. TDECU is a non-profit financial cooperative with more than $4.8 billion in assets, serving 376,000+ credit union Members with competitive financial products and personalized services. Contact us at (800) 839-1154. Equal Housing Lender. Insured by NCUA.