Costco Missoula Gas Prices – Reserve St

Regular · today: $4.149▼ −$0.050
Premium · today: $4.699

USD per gallon · Last updated October 31, 2026 · This station does not sell diesel

3220 N Reserve St, Missoula, MT 59808-1556 · Open in Maps ↗

30-day range

where today sits

Regular$4.149 today · avg $4.270
$4.149 low$4.339 high
Premium$4.699 today · avg $4.801
$4.699 low$4.889 high

Price history at Missoula

Last 30 days · USD per gallon

RegularPremium

Last updated October 31, 2026. Prices are collected once daily and can lag same-day changes at the pump.

Today’s price in context

At $4.149 for Regular, Missoula is tied for the 2nd cheapest of 5 Costco gas stations in Montana today, in line with the Montana average of $4.151.

Helena, 98.2 mi away, is $0.050 cheaper.

vs the US average: $0.126 below, at $4.275
Premium over Regular: $0.550 — the Montana median is $0.550
Regular over the last 30 days: down $0.150
Days the price changed: 6 of 30 reported days
Latest day at the 30-day low: today, at $4.149
15-gallon fill: $62.23 — the cheapest it has been in 30 days
Nearest cheaper station: Helena — 98.2 mi

Missoula is located at 3220 N Reserve St, Missoula, MT 59808-1556, in Montana. The gas station sits in the warehouse parking lot and is open to Costco members, selling Regular and Premium — this location does not sell diesel. Gas station hours are 6 a.m. – 10 p.m. on weekdays, 6 a.m. – 8:30 p.m. on Saturdays and 6 a.m. – 7:30 p.m. on Sundays, in local time.

Station details

Missoula Gas station hours

Mon–Fri: 6 a.m. – 10 p.m.
Saturday: 6 a.m. – 8:30 p.m.
Sunday: 6 a.m. – 7:30 p.m.

Missoula Warehouse hours

Mon–Fri: 10 a.m. – 8:30 p.m.
Saturday: 9:30 a.m. – 7 p.m.
Sunday: 10 a.m. – 6 p.m.

Costco gas near Missoula

Distances are straight-line.

Cities near Missoula

Costco gas prices Kalispell · MT · 95 mi$4.199
Costco gas prices Helena · MT · 98 mi$4.099
Costco gas prices Coeur d'Alene · ID · 140 mi$3.959
Costco gas prices Clarkston · WA · 146 mi$4.269

At this location

Warehouse opened: November 1991
Warehouse phone: (406) 543-6445
Pumps open early: 4 hours before the warehouse on weekdays

Also at this warehouse: a food court, a pharmacy, an optical department, a hearing aid center and a tire center.

Frequently asked questions

How much is gas at Costco Missoula today?

As of October 31, 2026: Regular $4.149 and Premium $4.699 per gallon. Prices are collected once a day, so the pump can differ.

What time does the Costco Missoula gas station open?

The pumps are open 6 a.m. – 10 p.m. weekdays, 6 a.m. – 8:30 p.m. Saturdays and 6 a.m. – 7:30 p.m. Sundays, in local time. The pumps open 4 hours before the warehouse on weekdays.

Does the Costco Missoula gas station sell diesel?

No — this station sells Regular and Premium, and has reported no diesel price in the last 30 days.

Is Costco Missoula cheaper than the average Costco station in Montana?

Not meaningfully: at $4.149, Regular here is level with the average Costco price in Montana, $4.151.

Where is the Costco Missoula gas station?

At 3220 N Reserve St, Missoula, MT 59808-1556. It sits in the Costco warehouse parking lot and is open to members only.

Do you need a Costco membership to buy gas?

Yes — a Gold Star, Executive or Business membership card has to be scanned at the pump before it will dispense, though a Costco Shop Card also works for non-members.

What payment methods does the Costco gas station accept?

Visa, PIN debit and the Costco Shop Card; US Costco fuel pumps take no cash and no Mastercard, American Express or Discover.

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