Costco Oconomowoc Gas Prices
1855 Kirkland Way, Oconomowoc, WI 53066
Warehouse #1803 · 2nd cheapest of 12 in Wisconsin
2nd cheapest of 12 in Wisconsin
Prices last refreshed — always verify at the pump.
30-day price trend
Located at 1855 Kirkland Way in Oconomowoc, Wisconsin, this Costco gas station opened on August 7, 2026. Gas station hours at Costco Oconomowoc are 6AM – 10PM Monday through Friday, 6AM – 8:30PM on Saturday, and 6AM – 7:30PM on Sunday, while the warehouse itself opens 10AM – 8:30PM on weekdays.
Regular pump prices at this station have eased about $0.350 over the past month, from $4.199 a month ago. Premium has eased about $0.060 over the same period.
Costco Oconomowoc Gas Station Hours
- Monday6AM – 10PM
- Tuesday6AM – 10PM
- Wednesday6AM – 10PM
- Thursday6AM – 10PM
- Friday6AM – 10PM
- Saturday6AM – 8:30PM
- Sunday6AM – 7:30PM
A current Costco membership card is required to fuel up. Hours may differ on holidays — confirm at the warehouse before a long drive.
Costco Oconomowoc Warehouse Hours
- Monday10AM – 8:30PM
- Tuesday10AM – 8:30PM
- Wednesday10AM – 8:30PM
- Thursday10AM – 8:30PM
- Friday10AM – 8:30PM
- Saturday9:30AM – 7PM
- Sunday10AM – 6PM
Services at this warehouse
Departments & programs
Station map
Click the marker to open in Google Maps for directions.