We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.
We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.
The latest reviews. The lowest prices. The perfect place to shop for hotels.

Costello's Clam Shack

$$ - $$$
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
Get directions
145 Pearl St, Groton, CT 06340-5773
+1 860-572-2779
11:30 - 20:30
Closed now
See all hours
Sun - Sat 11:30 - 20:30
More Info
Add Photo Write a Review

135 Reviews from our TripAdvisor Community

Traveller rating
Traveller type
Time of year
Showing 135: English reviews
Hamden, Connecticut
Level Contributor
206 reviews
137 restaurant reviews
common_n_restaurant_reviews_1bd8 102 helpful votes
Reviewed 17 November 2016

Noank, Ct. Costello’s Clam Shack is a hidden gem on the Ct. Shore line. It’s the smaller sister to Abbotts in the Rough of lobster fame. Nestled among the boats in the marina they offer a limited but delicious menu. If you have an urge for clams it’s a must stop. No glitz, no glamour, very casual with good food... More 

Thank Realtor44
Groton, Connecticut, United States
Level Contributor
34 reviews
30 restaurant reviews
common_n_restaurant_reviews_1bd8 8 helpful votes
Reviewed 26 October 2016

Costellos the sister to abbotts if u like local fresh fried seafood with great view this is the place,they also have bands on weekends and sit in a marina with views of the sound Great food n service

Thank Brian L
Bristol, Connecticut
Level Contributor
3 reviews
Reviewed 7 September 2016

I had lunch in May and it was good not great. I returned in August and ordered the whole belly clams. I knew when they handed me my tray that it would not be good. I should have returned it at that time but it was busy and I did not want to make a scene. The clams were way... More 

Thank nauset55
Level Contributor
8 reviews
5 restaurant reviews
common_n_restaurant_reviews_1bd8 9 helpful votes
Reviewed 5 September 2016 via mobile

We were debating over which Restaurant...I thought Costello's had more of a Variety of Seafood over Abbot's. So we chose Costello's - Loved the location and being from Maine , loved the beautiful Marina setting ...Perfect Right? WRONG 👎It was until we got our $60 meal , Which was Cold & Pathetic looking seafood plate I ever saw . The... More 

Thank Mb L
Philadelphia, Pennsylvania
Level Contributor
42 reviews
19 restaurant reviews
common_n_restaurant_reviews_1bd8 15 helpful votes
Reviewed 31 August 2016

If you like seafood at a very economical price, quick food, and sitting beside the water, this is the place for you. You drive through a small, quaint little town to get there and park in the marina parking lot. Wait in a short line, order in the window, find a table overlooking the boats and water, and wait for... More 

Thank PhillyGuy17
New London CT
Level Contributor
117 reviews
80 restaurant reviews
common_n_restaurant_reviews_1bd8 40 helpful votes
Reviewed 31 August 2016

We love Costellos for the great seafood but this time we went for two of their special salads - one with a half lobster tail on top and one with chicken, peaches, feta, walnuts, vinaigrette. We've reviewed Costellos before but had to make this new review being grateful for the lovely new and reasonably priced salads. They've also added other... More 

Thank dbarms
1 review
Reviewed 31 August 2016 via mobile

While my family was on vacation, we are here. The food and location was great. We sat on the bottom deck, but right under the edge of the second floor deck. A staff member was mopping the upper deck, and we got water all over us. We gave the guy a look to stop, he stared at us and continued.... More 

Thank Joseph N
Wethersfield, Connecticut
Level Contributor
185 reviews
137 restaurant reviews
common_n_restaurant_reviews_1bd8 40 helpful votes
Reviewed 18 August 2016

This Spring I drove to Abbott's in the Rough but Costello's was less crowded so I ate there. They have a nice two story deck and lots of shade overlooking the water and boats. Very nice meal and view.

Thank Velma Sue
Brewster, New York
Level Contributor
85 reviews
59 restaurant reviews
common_n_restaurant_reviews_1bd8 3 helpful votes
Reviewed 14 August 2016

Situated at the end of a dock surround by boats in the marina. Excellent view to watch boats coming and going on a nice day. Had bowl of delicious mussels, hot lobster roll and the special bacon wrapped scallops

Thank BCR37
Ledyard, Connecticut
Level Contributor
58 reviews
39 restaurant reviews
common_n_restaurant_reviews_1bd8 10 helpful votes
Reviewed 11 August 2016

Finding this place requires meandering through a tiny village with tiny streets. There are essentially three major fish shacks in this vicinity, and I believe Costello's is affiliated with its neighbor Abbott's (Costello's has some Abbott's items on its menu). The other shack is Ford's Lobster, down the street a little, off of Potter. We chose Costello's as it had... More 

Thank Robert B

Been to Costello's Clam Shack? Share your experiences!

Write a Review Add Photos & Videos

Is This Your TripAdvisor Listing?

Own or manage this property? Claim your listing for free to respond to reviews, update your profile and much more.

Claim Your Listing
Improve this listing

Restaurant Details

Rating summary
  • Food
  • Value
American, Seafood
Lunch, Dinner
Restaurant features
Takeout, Outdoor Seating, Seating, Parking Available, Wheelchair Accessible
Good for
View, Child-friendly, Kids
Open Hours
11:30 - 20:30
11:30 - 20:30
11:30 - 20:30
11:30 - 20:30
11:30 - 20:30
11:30 - 20:30
11:30 - 20:30
Location and Contact Information
  • Address: 145 Pearl St, Groton, CT 06340-5773
  • Location: United States  >  Connecticut (CT)  >  Groton
  • Phone Number: +1 860-572-2779
Costello's is closed for the season and will reopen Friday of Memorial Day weekend at 11:30.

Questions & Answers

Here's what previous visitors have asked, with answers from representatives of Costello's Clam Shack and other visitors
5 questions
Ask a question
10 months ago

See all questions (5)

Questions? Get answers from Costello's Clam Shack staff and past visitors.
Posting guidelines
Typical questions asked:
  • Do you have gluten-free options?
  • Is there a dress code?
  • Do you allow dogs on the outdoor patio?