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Dunkin' Zero
Brand Certified

Dunkin'

3.7
(278 reviews)

Business Details

75 Poquonnock Rd, Groton, CT
06340, United States
(860) 449-0250
https://www.dunkindonuts.com

About

Coffee ShopDonut ShopBreakfast RestaurantBakeryBagel ShopFast Food RestaurantTake Out RestaurantDunkin'
Dunkin’ is America’s favorite all-day, everyday stop for coffee, espresso, breakfast sandwiches and donuts. The world’s leading baked goods and coffee chain, Dunkin’ serves more than 3 million customers each day. With 50+ varieties of donuts and dozens of premium beverages, there is always something to satisfy your craving. Dunkin’ is proud to serve Groton, CT for all breakfast and snacking needs. Stop by today to try a classic favorite or a new featured product!

Details

  • Dine-inAvailable
  • DeliveryAvailable
  • TakeoutAvailable
  • Credit cardAvailable

Location

Dunkin'
75 Poquonnock Rd, Groton, CT
06340, United States

Hours

Reviews

3.7
278 reviews
5 stars
126
4 stars
57
3 stars
28
2 stars
23
1 star
44

What are people saying?

AI-generated from recent customer reviews

Staffing Issues

Customers frequently noted that the store is understaffed, leading to slow service and overwhelmed employees.

Customer Service

Mixed reviews on customer service; while some staff were described as friendly and helpful, others were reported as rude and unprofessional.

Order Accuracy

Several customers experienced issues with incorrect orders and poor handling of complaints.

Cleanliness and Environment

The location received praise for cleanliness, but there were also complaints about unsanitary conditions and locked bathrooms.

Product Quality

While many customers enjoyed the coffee and food, there were complaints about the quality and preparation of certain items.
  • DR
    Dakota Robbins
    Jan 12, 2026
    1.0
    The poor girl behind the counter was scrambling because she was the only one working at the store at 2:47 PM when there are at least 5 people in the store, and more coming in and out. Despite the fact they were severely understaffed, the worker was polite and helpful. They need to be more generous with their staffing for the sake of their employees AND customers. This is a commonality in all of the locations owned by this franchisee. It’s sad to see so many faces come and go from these Dunkin’s but I suspect that the lack of staffing is one of the reasons why.
  • AK
    Andrew K
    Jan 7, 2026
    5.0
    Fast, friendly staff. And the sandwich was actually put together, not components thrown in a bag
  • MM
    muklucjo
    Dec 27, 2025
    3.0
    Manager abuses his staff to the point that at times labor relations should get involved. The staff here are excellent they try and make everyone feel welcome sometimes slow but that’s only when it’s really busy never see the manager jump in and help during those times
  • SS
    Stephen Sinclair
    Dec 14, 2025
    3.0
    Incorrect order given; not resolved well by staff
  • MD
    Melinda Davis
    Dec 11, 2025
    1.0
    I wish I can rate without giving a star. The building is beautiful, love the renovations they made. Honestly they need an overhaul on new management and staff. Unsettling to witness arguments with the staff and unprofessional behavior. Swearing, talking on their cellphones, arguing with each other, and rude to customers. I tried to give them a chance several times, but at this point I’d rather take my business elsewhere. My coffee is never fully filled. Any time I order Uber, they never get the order right and are lazy to put cold drinks in the bags. The owners really need to reevaluate who they have representing their business. It would be sad to see them continue to lose profit. I would reach out to the owners or management but the staff have denied my request for any information.

Frequently Asked Questions About Dunkin'

What are the regular operating hours for Dunkin' in Groton, CT?

Dunkin' in Groton, CT is open Monday to Friday from 4:00 AM to 7:00 PM, and on Saturday and Sunday from 5:00 AM to 7:00 PM.

Does Dunkin' offer breakfast and lunch options?

Yes, Dunkin' serves breakfast, lunch, and brunch, featuring coffee, espresso, breakfast sandwiches, and donuts.

Brand Certified Facts from Dunkin'

This information is certified by Dunkin' and published from the brand's official system of record. Data is distributed through an enterprise-grade knowledge management platform. Learn more about our data sources
Certified March 01, 2026Yext Knowledge Graph
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  • Legal business name
  • Hours of operation
  • Phone number
  • Official website
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