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Dunkin' Zero
Brand Certified

Dunkin'

3.7
(322 reviews)

Business Details

531 Islington St, Portsmouth, NH
03801, United States
(603) 431-7350
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 Portsmouth, NH for all breakfast and snacking needs. Stop by today to try a classic favorite or a new featured product!

Details

  • Dine-inNot available
  • DeliveryAvailable
  • TakeoutAvailable
  • Credit cardAvailable

Location

Dunkin'
531 Islington St, Portsmouth, NH
03801, United States

Hours

Monday5:00 AM - 8:00 PM
Tuesday5:00 AM - 8:00 PM
Wednesday5:00 AM - 8:00 PM
Thursday5:00 AM - 8:00 PM
Friday5:00 AM - 8:00 PM
Saturday5:00 AM - 8:00 PM
Sunday5:00 AM - 8:00 PM

Menu

1 menu · 73 items

Explore offerings from Dunkin' on 531 Islington St in Portsmouth, with popular iced drinks, hot drinks, frozen drinks, and sandwiches & wraps available at this location.

Dunkin' Menu

73 items

Reviews

3.7
322 reviews
5 stars
134
4 stars
74
3 stars
46
2 stars
17
1 star
51
  • MC
    Mike Cavanaugh
    6 days ago
    4.0
    Had a great experience here. Great service n good food.
  • LF
    Lisa Flynn-Trefrey
    Aug 25, 2026
    2.0
    Incapable of putting a lid on a cup of coffee correctly.
  • JM
    John Morley
    Aug 23, 2026
    2.0
    The location is horribly placed, with the parking lot too small to accommodate traffic such that vehicles will be out in the street attempting to enter the drive-thru line and vehicles in the line blocking parking spots and making it impossible to move around the lot or park/leave if utilizing parking. Even if ordering ahead to save time, you will still end up waiting 20+ minutes in the drive-thru due to the huge volume of traffic and slow service to match. Lines on the pavement indicating the directions for the flow of traffic are improperly placed, and the whole location overall is just a mess begging for an accident along with the unbearably long wait times. If the lot size were expanded utilizing the large empty space behind the location near the train tracks, and the building itself was enlarged/staff increased to appropriately deal with the number of customers and traffic, this location would immediately become 4-5 stars because of course, America runs on Dunkin’!
  • EO
    Elizabeth O'Zemko
    Aug 7, 2026
    5.0
    Stopped here on a road trip. The drive thru line was long so I went inside to order 5 food items and 2 drinks. I went to order at the kiosk and a happy employee offered to take my order and was so helpful - and then I waited maybe 5 minutes for my large order! So efficient! And kind!
  • HK
    Heewon Kiim
    Aug 4, 2026
    5.0
    Absolutely amazing service. Great people who love to serve and see pure joy in their customers. Sending love from new jersey

Frequently Asked Questions About Dunkin'

What are the operating hours of Dunkin' in Portsmouth, NH?

Dunkin' in Portsmouth, NH is open daily from 5:00 AM to 8:00 PM.

Does this Dunkin' location offer delivery and pickup services?

Yes, this Dunkin' location offers both delivery and curbside pickup.

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 August 30, 2026Yext Knowledge Graph
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