Harris County Commissioner, Pct. 4 Home / Harris County Commissioner, Pct. 4 Share: Harris County Commissioner, Pct. 4 Visit Website 1001 Preston Suite 950 Houston, TX 77002 (713) 755-6444 (713) 755-8801 (fax) Map What's Nearby? Distance: 5 10 15 20 25 50 mi.