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Trip from East Setauket, NY to Brookhaven, NY

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Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards

Drive Time

29m

Distance

17.7 mi

28 km

Drive Score

6/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$3

one way

EV Charging

Unknown

Best Time to Leave

Save up to 7 min
4 AM
0h 27m ★
6 AM
0h 29m
8 AM
0h 34m
10 AM
0h 31m
12 PM
0h 31m
3 PM
0h 31m
5 PM
0h 34m
8 PM
0h 28m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Downtown East Setauket, NY, NY

East Setauket, NY

Renan Tagliaferro

Trip Overview

East Setauket to Brookhaven is 17.7 miles and takes about 29 minutes via Horseblock Road and Old Town Road, with a fuel budget near $3 and enough daylight to finish in a day. This short trip stays within New York, connecting two points in the Northeast region. Given its brief duration and surface road profile, this route is ideal for a quick local errand or a brief scenic detour. You won't encounter any major highway driving, making it a straightforward and easy navigation. Plan for this to be a simple hop within the local area.

Main Roads

Road Distance Duration
Horseblock Road 6.7 mi 10m
Old Town Road 6.5 mi 11m
Patchogue-Mount Sinai Road 2.9 mi 4m
Montauk Highway 0.9 mi 1m
South Country Road 0.4 mi <1m
North Ocean Avenue 0.3 mi <1m
Gnarled Hollow Road <0.1 mi <1m
Route 112 <0.1 mi <1m
Longest stretch: Horseblock Road — 6.7 mi, about 10m

Turn-by-Turn Driving Directions

Step-by-step road directions between East Setauket, NY and Brookhaven, NY.

1

Start on NY 25A

29 ft · 7 sec · Main Street
2

Turn left onto Old Town Road

0.5 mi · 51 sec · Old Town Road
Use the left lane.
3

At end of road, turn right onto Gnarled Hollow Road

518 ft · 12 sec · Gnarled Hollow Road
4

Turn left onto Old Town Road

6.0 mi · 10 min · Old Town Road
Use the left lane.
5

Turn right onto CR 83

2.9 mi · 4 min · Patchogue-Mount Sinai Road
6

Continue on CR 83

0.3 mi · 33 sec · North Ocean Avenue
7

Turn left onto CR 16

1.4 mi · 2 min · Horseblock Road
Use the left lane.
8

At end of road, turn right onto NY 112

32 ft · 5 sec · Route 112
9

Turn left onto CR 16

5.3 mi · 8 min · Horseblock Road
Use the left lane.
10

At end of road, turn right onto CR 80

0.9 mi · 1 min · Montauk Highway
Use the right lane.
11

Turn left onto CR 36

0.4 mi · 50 sec · South Country Road
Use the left lane.
12

Arrive at destination

CR 36

Heads-up: tricky spots

5 of 9

5 decision points cluster between mile 0 and 17.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

6
0 mi into trip | ~0m in | Old Town Road

Turn left onto Old Town Road

Lane positioning matters here

Use the left lane.
5
0.6 mi into trip | ~1m in | Old Town Road

Turn left onto Old Town Road

Lane positioning matters here

Use the left lane.
5
11.2 mi into trip | ~18m in | CR 16 / Horseblock Road

Turn left onto CR 16 / Horseblock Road

Lane positioning matters here

Use the left lane.
6
16.4 mi into trip | ~26m in | CR 80 / Montauk Highway

At end of road, turn right onto CR 80 / Montauk Highway

Lane positioning matters here

Use the right lane.
5
17.3 mi into trip | ~28m in | CR 36 / South Country Road

Turn left onto CR 36 / South Country Road

Lane positioning matters here

Use the left lane.

Fuel & Cost

Regular Gas

$2.91 one way

$5.83 round trip

$4.18/gal 25.4 MPG avg 6 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.52 $3.15 $6.30
premium $4.92 $3.43 $6.86
diesel $5.61 $3.91 $7.82

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$3

Estimated CO2 emission: 6.2 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $2 in charging · 0 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 5.3 0 $1.86 $0.85
Efficient EV 4.4 0 $1.55 $0.71
EV Truck/SUV 7.1 0 $2.48 $1.13

Gas CO2

6 kg

EV CO2

2 kg (67% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast as of Apr 21, 2026

Origin

East Setauket, NY

Morning in East Setauket on Tuesday

Local time

6:46 AM

EDT

Current temp

59°F

Unavailable

Live forecast

Destination

Brookhaven, NY

Morning in Brookhaven on Tuesday

Local time

6:46 AM

EDT

Current temp

43°F

Unavailable

Live forecast

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

16 degrees cooler at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

29m on the road

Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

What kind of drive is this?

This drive is entirely on surface roads, with no highway driving involved. The longest continuous stretch you'll encounter is 6.7 miles along Horseblock Road. You'll navigate through local streets and main arteries, so expect to encounter traffic lights and intersections frequently. The route predominantly follows Horseblock Road, Old Town Road, and Patchogue-Mount Sinai Road.

Only 0% highway — the rest is turn-by-turn surface driving.
12 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 6.7 mi on Horseblock Road.

How Hard Is This Drive?

6/10

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 9 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near Old Town Road.

Driving Effort 6/10

Moderate - straightforward overall, but long enough or busy enough to require pacing

Balances navigation complexity with total wheel time.

This drive requires moderate attention. Across 17.7 miles you will encounter 9 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.

Where does it get tricky?

The main spots that need attention: near the start (Old Town Road): Lane positioning matters here; at 0.6 miles (Old Town Road): Lane positioning matters here; at 11.2 miles (CR 16 / Horseblock Road): Lane positioning matters here.

About the Cities

Arriving in Brookhaven, NY

Full guide →

Founded 1655

Brookhaven is the largest town in Suffolk County, part of Long Island, New York. With 485,000 residents (2020). It includes a patchwork of villages and other communities, and is the only town on the island to touch both the Long Island Sound and Atlantic Ocean. The villages of Belle Terre, Bellport, Lake Grove, Mastic Beach, Old Field, Patchogue, Poquott, Port Jefferson, and Shoreham are semi-autonomous, and provide their own services in addition to those provided by the town. Other prominent communities include Mount Sinai, Stony Brook, and Fire Island, a long and car-free resort island off the south coast of the town.

Top landmarks

  • Wardenclyffe Tower — early experimental wireless transmission station designed and built by Nikola Te...
  • West Meadow Beach Historic District — historic district in the United States
  • Stony Brook Grist Mill — watermill

City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 29m. Total distance: 17.7 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

29m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

Scenic Drive

Mostly surface roads route profile.

Frequently Asked Questions

The longest stretch is about 6.7 miles on Horseblock Road. The full list of main roads is in the Roads section above.

It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Brookhaven, NY before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.

Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.

The main spots that need attention: near the start (Old Town Road): Lane positioning matters here; at 0.6 miles (Old Town Road): Lane positioning matters here; at 11.2 miles (CR 16 / Horseblock Road): Lane positioning matters here.

Yes. A round trip is manageable in a single day if you plan a break at Brookhaven, NY before heading back.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.

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