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Featured promotions at T-Mobile at Costco

T-Mobile Network Performance

Data provided by Umlaut From April-2025 to September-2025   See coverage map
5G network score
The higher your score, the more likely you can connect to a faster, more stable network.
95
/100
AT&T
80
/100
Verizon
68
/100
5G coverage availability
More availability means having access to 5G speeds more often.
91 %
82 %
AT&T
66 %
Verizon
5G download speed
Higher speed means quicker downloads and smoother video calling.
100
Mbps
AT&T
51
Mbps
Verizon
32
Mbps
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T-MOBILE TRIAL

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for 30 days.

Test-drive our award-winning network and some of our favorite benefits for 30 days-no commitment or credit card required. We won't even tell your other carrier.

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Qualifying non-T-Mobile network user & compatible, unlocked device required. 1 trial user. See 5G device, coverage, & trial details at T-Mobile.com.

Featured reviews at T-Mobile at Costco

Rachel Roberge
Nov. 14, 2025, 5:54 p.m.
Absolutely Outstanding Service at the T-Mobile Kiosk in Costco! I had an amazing experience at the T-Mobile kiosk inside Costco! The entire team was extremely friendly, patient, and knowledgeable from the moment I walked up. They took the time to explain every option clearly, helped me find the best plan for my needs, and made the whole process quick and stress-free. What really stood out was how professional and honest they were — no pressure, no upselling, just genuine customer service. They made sure everything on my phone was set up perfectly before I left, and even followed up to be sure I didn’t have any questions. If you’re thinking about switching to T-Mobile or upgrading your device, this is the place to go. I honestly wish every customer service experience was like this. Highly recommend! View on Google
Daniel Hart
Nov. 14, 2025, 4:57 p.m.
I had the BEST experience with Dominic at the T-Mobile kiosk in Costco yesterday! I walked up expecting the usual hassle you get with phone upgrades, but Dominic made everything unbelievably easy. He was patient, super knowledgeable, and actually listened to what I needed instead of trying to push random deals on me. He explained every step clearly, helped me compare options without any pressure, and even got everything set up faster than I expected. You can tell he knows his stuff and genuinely cares about helping people. Customer service like this is rare these days! If you’re at Costco and need anything mobile-related, go see Dominic — he’ll take great care of you. I left feeling confident, taken care of, and honestly wishing all phone reps were this good! View on Google
KayLynn Treece
Nov. 14, 2025, 4:56 p.m.
Went to see Jen and she was the nicest! She answered all my questions with no judgment. Id highly recommend her to anyone! View on Google
Rebecca Deulen
Nov. 14, 2025, 4:49 p.m.
⭐️⭐️⭐️⭐️⭐️ If You Go to the T-Mobile Kiosk at Costco, Ask for Richard — Trust Me I went to the T-Mobile kiosk at Costco expecting the usual phone-upgrade headache, but Richard completely proved me wrong. He was friendly, patient, and actually made the whole process easy — which feels like a small miracle. Richard walked me through all my options without trying to upsell me into something wild. He explained everything in simple terms, answered all my questions, and somehow kept me laughing the whole time. Honestly, I think he deserves a medal for dealing with me. He got my new phone set up quickly, made sure everything transferred correctly, and didn’t rush me at all. It was hands down the most painless phone upgrade I’ve ever had. If you need help with T-Mobile, go see Richard. He’s knowledgeable, honest, and way more fun to work with than tech support over the phone. Highly recommend! I will definitely be sending everyone I know there! View on Google
Marilyn Hamlet
Nov. 14, 2025, 4:14 a.m.
The customer service is great and the staff was so patient with me View on Google

Additional information about T-Mobile at Costco

IDs Accepted
  • US State issued drivers license
  • US Passport or Permanent Resident Card (Green Card)
  • State ID
  • International student visa with passport (Visa types: M, J, F)
  • Matricula Consular card (Mexico and most Latin American countries, check with your store mobile expert)
  • Employment Authorization Document (EAD)
  • US Military ID
T-Mobile at Costco - 12020 N Newport Hwy
T-Mobile at Costco - 12020 N Newport Hwy
The leader in 5G - Now America's largest 5G network is also America's fastest and most reliable 5G network. Shop T-Mobile at this location. Please contact this location for full service options.
  • Activate Wireless Service
  • Activate Home Internet Services
  • Upgrade or Trade-In Your Phone
  • Exclusive Member Benefits

Locations near T-Mobile at Costco

T-Mobile Experience Store
T-Mobile Five Mile Plaza
4.4 miles away
4.3
T-Mobile Store
T-Mobile E H St & S Main St
13.2 miles away
4.9
T-Mobile Authorized Retailer
T-Mobile Spokane, Division & Lincoln
2.8 miles away
5.0

Got Questions about T-Mobile Stores?

Yes. Check out our special offers for new phones and great deals on our mobile phone plans.

We offer the latest iPhones. Check our store inventory and either buy in-store or online today.

Yes. Trade in your phone at a T-Mobile store and receive instant appraisal and credit. See our trade-in guide for details.

Yes, visit our T-Mobile store at T-Mobile at Costco for assistance with setting up your device.

Browse devices and plans online, contact us for assistance, or visit this T-Mobile location at T-Mobile at Costco for personalized help.

Yes. Some plans include subscriptions to services like Netflix or Apple TV+. Check our plans for available perks and add-ons.

Use our Store Locator to find the nearest T-Mobile store.

T-Mobile stores offer a wide range of accessories compatible with your device, including cases, chargers, and headphones.

No, you can pay your bill online through our website or the T-Mobile app.

Only compatible devices can use T-Mobile's 5G network. All new phones are 5G ready.

The T-Life app provides a simplified experience for customers by offering everything in one convenient location. In the T-Life app, T-Mobile and Metro by T-Mobile customers can access the same great perks and exclusive deals you know and love from T-Mobile Tuesdays, VIP benefits, and more! Plus, you can easily manage most aspects of your T-Mobile account directly from the T-Life app, with new features being added regularly.
Yes, the T-Life app can be found in your Google Play Store or Apple iOS App Store