Houston City Council - District K, Martha Castex-Tatum Home / Houston City Council - District K, Martha Castex-Tatum Share: GOVERNMENT & ELECTED OFFICIALS Houston City Council - District K, Martha Castex-Tatum Visit Website City of Houston, District K 900 Bagby, First Floor Houston, TX 77002 (832) 393-3016 Map What's Nearby? Distance: 5 10 15 20 25 50 mi.