Costco Gas Prices in Salt Lake City, UT

Salt Lake City, Utah has 2 Costco fuel centers serving members in the area. Across Salt Lake City, regular gas averages $3.399, premium runs about $0.44 higher at $3.839, and diesel sits at $4.339. That's about $0.12 below the Utah statewide average of $3.517. Within Salt Lake City, Costco Salt Lake City posts the lowest regular at $3.399 and West Valley the highest at $3.399 — a $0.00 spread worth checking before you fuel up. Across Salt Lake City, regular pump prices have eased about $0.60 over the past month, from $3.999 a month ago. Premium has eased about $0.56 and diesel has eased about $0.76 over the same period. Diesel is available at 1 of the 2 Salt Lake City stations.