Texas City Mainland (042042) » Directory Go back to directory. Add to Address Book. Texas City Mainland (042042) Texas City Mainland (042042) Other P.O. Box 1277 LaMarque TX 77568 postal Anniversary: December 3, 1982 Anniversary - Texas City Mainland (042042) 19821203000000 Categories: Clubs, East, Lions Club, Zone 1 Updated 4 weeks ago.