Southwest Gas Company Share: UtilitiesGas Southwest Gas Company Visit Website 201 W. 4th Street Casa Grande, Arizona 85122 (877) 860-6020 (520) 836-1484 (fax) Facebook Map What's Nearby? Distance: 5 10 15 20 25 50 mi. Museums & entertainment spots Restaurants & Bars Schools Get in Touch with us Address 351 N. Arizona Blvd., Coolidge Arizona 85128 Contact Info [email protected] 520-723-3009 Contact Us FollowFollowFollowFollow