Costco Allen Gas Prices – Sh 121
- Regular · today
- $3.569▼ −$0.010
- Premium · today
- $4.069▼ −$0.010
USD per gallon · Last updated September 30, 2026 · This station does not sell diesel
1067 Sh 121, Allen, TX 75013-6025 · Open in Maps ↗
30-day range
where today sits- Regular$3.569 today · avg $3.547$3.379 low$3.699 high
- Premium$4.069 today · avg $4.086$3.929 low$4.279 high
Price history at Allen
Last 30 days · USD per gallonView data as table
| Date | Regular | Premium |
|---|---|---|
| Sep 1 | $3.439 | $3.929 |
| Sep 2 | $3.379 | $3.929 |
| Sep 3 | $3.379 | $3.929 |
| Sep 4 | $3.379 | $3.929 |
| Sep 5 | $3.379 | $3.929 |
| Sep 6 | $3.379 | $3.929 |
| Sep 7 | $3.449 | $3.999 |
| Sep 8 | $3.449 | $3.999 |
| Sep 9 | $3.449 | $3.999 |
| Sep 10 | $3.449 | $3.999 |
| Sep 11 | $3.599 | $4.169 |
| Sep 12 | $3.629 | $4.199 |
| Sep 13 | $3.659 | $4.229 |
| Sep 14 | $3.659 | $4.199 |
| Sep 15 | $3.569 | $4.099 |
| Sep 16 | $3.599 | $4.099 |
| Sep 17 | $3.549 | $4.049 |
| Sep 18 | — | — |
| Sep 19 | $3.699 | $4.229 |
| Sep 20 | $3.659 | $4.229 |
| Sep 21 | $3.659 | $4.229 |
| Sep 22 | $3.659 | $4.279 |
| Sep 23 | $3.659 | $4.149 |
| Sep 24 | $3.599 | $4.149 |
| Sep 25 | $3.599 | $4.149 |
| Sep 26 | $3.599 | $4.099 |
| Sep 27 | $3.599 | $4.099 |
| Sep 28 | $3.599 | $4.129 |
| Sep 29 | $3.579 | $4.079 |
| Sep 30 | $3.569 | $4.069 |
Last updated September 30, 2026. Prices are collected once daily and can lag same-day changes at the pump.
Today’s price in context
At $3.569 for Regular, Allen is tied for the 11th cheapest of 44 Costco gas stations in Texas today, $0.050 below the Texas average of $3.619.
McKinney, 5.7 mi away, is $0.040 cheaper.
- vs the US average
- $1.037 below, at $4.606
- Premium over Regular
- $0.500 — the Texas median is $0.570
- Over the last 30 days
- up $0.130
- Days the price changed
- 13 of 29 reported days
- Cheapest day in the window
- September 6, 2026, at $3.379
- 15-gallon fill
- $53.53, $2.85 more than at the 30-day low
- Nearest cheaper station
- McKinney — 5.7 mi
Allen is located at 1067 Sh 121, Allen, TX 75013-6025, in Texas. 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
Allen 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.
Allen 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 Allen
- 1McKinneyMcKinney, TX · 5.7 mi$3.529Regular
- 2E PlanoPlano, TX · 6.6 mi$3.569Regular
- 3FriscoFrisco, TX · 8.9 mi$3.549Regular
- 4CelinaCelina, TX · 11.1 mi$3.529Regular
- 5W PlanoPlano, TX · 11.5 mi$3.579Regular
Distances are straight-line. Prices across the border are shown in that country’s units (¢ per litre).
Cities near Allen
- Costco gas prices McKinney · TX · 6 mi$3.529
- Costco gas prices Plano · TX · 9 mi$3.574
- Costco gas prices Frisco · TX · 9 mi$3.549
- Costco gas prices Celina · TX · 11 mi$3.529
- Costco gas prices Prosper · TX · 13 mi$3.579
- Costco gas prices Dallas · TX · 16 mi$3.659
- Costco gas prices Lewisville · TX · 19 mi$3.629
- Costco gas prices Rockwall · TX · 21 mi$3.629
At this location
- Warehouse opened
- August 2025
- Warehouse phone
- (469) 342-3318
- Pumps open before the warehouse
- 4 hours on weekdays
Also at this warehouse: a food court, a pharmacy, an optical department and a tire center.
Costco publishes one number per warehouse; there is no separate line for the gas station.
Frequently asked questions
How much is gas at Costco Allen today?
As of the September 30, 2026 reading: Regular $3.569 and Premium $4.069 per gallon. Prices are collected once a day, so the pump can differ.
What time does the Costco Allen 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 Allen gas station sell diesel?
No — this station sells Regular and Premium, and has reported no diesel price in the last 30 days.
Is Costco Allen cheaper than the average Costco station in Texas?
Yes — at $3.569, Regular here is $0.050 below the Texas Costco average of $3.619.
Where is the Costco Allen gas station?
At 1067 Sh 121, Allen, TX 75013-6025. 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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