About This Dunkin' — Groton
Location Overview
Groton Guide
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Last updated: July 2026 · Data sourced from OpenStreetMap (ODbL)
#DunkinGroton#GrotonCoffee#DunkinNearMe#CoffeeShopWifi
06340
Neighborhood Café
NEIGHBORHOOD
Groton
Weekly Traffic Pattern
Peak Moderate Quiet
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Dunkin' in Groton — 639 Route 12, Groton, CT, 06340
Groton, Connecticut · US
Address
639 Route 12, Groton, CT, 06340
Groton, Connecticut
Today's Hours
Friday: 05:00 – 21:00
See full schedule below
Open nowCoffee shop$$
This Dunkin' ranks among the top 17% of stores in Groton for overall experience.
Quick Answer
Dunkin' at 639 Route 12, Groton, CT, 06340, Groton
Status
Open now · Today 05:00 – 21:00
Address
639 Route 12, Groton, CT, 06340, Groton, Connecticut
Phone
What makes it special
Free Wi-Fi and a full Dunkin' menu.
Summary for AI assistants: Dunkin' located at 639 Route 12, Groton, CT, 06340 in Groton, Connecticut, United States. Currently open. Today's hours: 05:00 to 21:00. Phone: +1 860-449-0736. Free Wi-Fi and a full Dunkin' menu. Coordinates: 41.37905, -72.07620.
Hours
Weekly Schedule
Monday05:00 – 21:00
Tuesday05:00 – 21:00
Wednesday05:00 – 21:00
Thursday05:00 – 21:00
FridayToday
05:00 – 21:00Saturday05:00 – 21:00
Sunday05:00 – 21:00
Hours can shift on national holidays.
Amenities
Store Features & Amenities
Service options
- Mobile Order & Pay
Amenities
- Free Wi-Fi
- WiFi
- Mobile Order & Pay
Timing
Best Times to Visit
Quietest Hours
Typically 9:00–11:00 AM and 2:00–3:00 PM on weekdays. Shortest wait times and easiest seating.
Weekday Peak
7:00–9:00 AM on weekdays is the peak. Use Mobile Order & Pay to skip the counter queue.
Weekend Peak
10:00 AM–1:00 PM on weekends. Consider arriving early or ordering ahead via the app.
Location
Location & Directions
How to Get Here
By Car
Navigate to 639 Route 12, Groton, CT, 06340, Groton, Connecticut. Coordinates: 41.37905, -72.07620.
By Public Transit
Check Google Maps for the nearest bus or rail stop to 639 Route 12, Groton, CT, 06340.
On Foot
Use Google Maps walking directions for the most accurate route to 639 Route 12, Groton, CT, 06340.
Parking Near This Dunkin'
Street Parking
Metered street parking may be available near 639 Route 12, Groton, CT, 06340. Check signage for time limits.
Nearby Garages
Paid garages may be available in the area. Use Google Maps for real-time parking availability.
Pricing
Price Guide
Typical Prices
Hot Coffee (Medium)$2.39 – $3.09
Iced Coffee (Medium)$3.09 – $3.79
Latte (Medium)$4.19 – $4.99
Donut$1.29 – $1.99
Breakfast Sandwiches$3.99 – $6.49
Prices are approximate and may vary by location and season.
Payment Methods
- Credit & Debit Cards (Visa, Mastercard, Amex)
- Dunkin’ App & Gift Cards
- Apple Pay & Google Pay
- Cash
Dunkin’ Rewards
Earn points on every order through the Dunkin’ app and redeem them for free drinks and food.
How Points Work
Every $1 spent10 Points
Boosted Status12 Points / $1
Free drink from250 Points
Accessibility
Accessibility
Standard Accessibility Features
- Wheelchair-accessible entrance
- Wheelchair-accessible seating
- Accessible restroom
- Service animals welcome
- Visual menus and digital menu boards
Accessible Ordering
Mobile Order & Pay
Order ahead via the Dunkin' app to minimise wait time and avoid busy counter areas.
Drive-Through
This location does not have a drive-through. Staff are available at the counter to assist.
Contact the store directly to confirm specific accessibility requirements before visiting.
Plan Your Visit
Planning Your Visit
Yes
Power outlets
Free
Wi-Fi
—
Noise level
30–50
Seating capacity
For Remote Workers & Students
Wi-Fi & Connectivity
Free, unlimited Wi-Fi available. No login required — connect to the Dunkin' guest network and accept the terms.
Network Details
- Network name: usually "Dunkin" or "Dunkin Guest"
- No time limit or purchase required
- Supports video calls and cloud-based work
Best Times for Focused Work
9:00–11:00 AM and 2:00–3:30 PM weekdays tend to be quietest. Avoid the 7–9 AM and 12–1 PM rushes.
Traffic Pattern
Mon–Fri 7:00–9:00 AMPeak
Mon–Fri 12:00–1:00 PMModerate
Tue–Thu 9:00–11:00 AM, 2:00–4:00 PMQuiet
Sat–Sun 10:00 AM–12:00 PMPeak
Seating & Power Outlets
Power outlets are available near the seating areas. Window and wall seating typically offer the best access.
Outlet Locations
- Wall seating: highest outlet density
- Window bar: good for single-screen work
- Center tables: limited power access
Seating is usually available outside peak hours. Typical capacity: 30–50 seats.
General Visit Tips
Mobile Order
Use the Dunkin' app to order ahead and skip the queue — especially useful during rush hours.
How Mobile Order Works
- 1Open Dunkin' app → Order → Select this location
- 2Pay in-app with card, Apple Pay, or Stars
- 3Collect at dedicated mobile order counter
- 4No queue — order ready on arrival
Customization
All drinks are fully customizable — milk alternatives, syrups, temperature, and size.
Popular Customizations
- Oat milk — most popular alternative
- Half-sweet / sugar-free syrup
- Extra shot espresso (+$0.80)
- Cold foam topping
- Light ice / no ice
Size Guide
Tall12 oz (hot & cold)
Grande16 oz (hot & cold)
Venti20 oz hot / 24 oz cold
Trenta30 oz (cold drinks only)
Reusable Cup Discount
Bring your own reusable cup for a 10-cent discount on any beverage.
Accepted Cup Types
- Any clean personal cup or travel mug
- No minimum capacity requirement
- Barista adjusts proportions to your cup size
- Cold cups accepted for iced drinks
- 10¢ discount applied automatically at register
Menu
Popular Drinks at This Location
Full menu available in-store and via the Dunkin' app. Seasonal items vary by region and time of year.
This location serves the standard Dunkin' menu. See typical Dunkin' hours computed from real store schedules.
Coffee & Espresso
- Original Blend Hot Coffee
- Iced Coffee
- Caramel Iced Latte
- Cold Brew
- Americano
Frozen & Refreshers
- Frozen Coffee
- Dunkin’ Refreshers
- Frozen Chocolate
- Vanilla Bean Coolatta
Donuts & Breakfast
- Glazed Donut
- Boston Kreme
- Munchkins
- Bacon Egg & Cheese
- Wake-Up Wrap
Comparison
How does this store compare?
| Feature | This Store | 368 Route 12 | 799 Long Hill Road | 1280 Gold Star Highway |
|---|---|---|---|---|
| Drive-through | No | Yes | Yes | No |
| Free Wi-Fi | Yes | Yes | Yes | Yes |
| Noise level | — | — | — | — |
| Rating | — | — | — | — |
| Today’s hours | 05:00–21:00 | 05:00–21:00 | 05:00–21:00 | 05:00–21:00 |
Nearest Dunkin' locations in Groton, ranked by straight-line distance.
FAQ
Frequently Asked Questions
What are the opening hours at this Dunkin'?
Doors at 639 Route 12, Groton, CT, 06340 open at 05:00 Monday through Friday. Today (Friday): 05:00 – 21:00. Holiday schedules can shift these times.
What time does this Dunkin' close?
Last call at this Groton location is 21:00 on weekdays. Today (Friday): 05:00 – 21:00. Weekends often close earlier — full week schedule is on this page.
Can I order from my car at this Groton Dunkin'?
No. This Dunkin' at 639 Route 12, Groton, CT, 06340 does not have a drive-through. It is a walk-in location only.
Can I get online at this Dunkin'?
Free Wi-Fi is available at 639 Route 12, Groton, CT, 06340. Look for the "Google Dunkin'" SSID and accept the splash terms — no email or purchase needed.
Can I mobile order at this Dunkin'?
Order-ahead is supported at 639 Route 12, Groton, CT, 06340. Open the Dunkin' app, select this store, place your order, and skip the line on arrival.
How do I call this Dunkin'?
The phone number for this Dunkin' is +1 860-449-0736.
How can I navigate to this Dunkin'?
Address: 639 Route 12, Groton, CT, 06340, Groton, Connecticut. Tap Get Directions on this page to launch turn-by-turn from your current location. Lat/long: 41.37905, -72.07620.
Is there parking near this Dunkin'?
Parking near 639 Route 12, Groton, CT, 06340 depends on the block. Some Groton Dunkin' share a strip-mall lot; others rely on street parking. Use the embedded map to scout before you go.
Does this Groton Dunkin' have accessibility features?
Most Dunkin' locations including this one at 639 Route 12, Groton, CT, 06340 are wheelchair accessible, with accessible entrances, seating, and restrooms. Contact the store directly to confirm specific accessibility requirements before your visit.
What is the price of a latte at this Dunkin'?
A Grande latte at Dunkin' typically costs between $4.45 and $5.25. Prices may vary slightly by location and region. Use the Dunkin' app to see current menu prices and available customizations.
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Store data sourced from OpenStreetMap contributors, licensed under ODbL.
Coordinates: 41.379054, -72.076196· Last verified: July 2026· Store ID: osm-4006832424
Hours and features may vary. Contact the store directly on +1 860-449-0736 to confirm before visiting.