Round Top, New Jersey

Round Top: a city in Somerset County, New Jersey.

About

Round Top is a city located in the county of Somerset in the U.S. state of New Jersey.

Quick Facts about Round Top

State New Jersey (United States)
County Somerset County
Latitude & Longitude 40.6198,-74.5449
Time Zone America/New_York
Local time 22:38:45 (8th November 2026)
Weather 42℉ Mostly Cloudy 7-days weather

Geography

Round Top is located at 40°37'11"N 74°32'42"W (40.6198200, -74.5448800).

Round Top map

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Weather

42°F
Mostly Cloudy
5 mph W Overnight

Mostly cloudy, with a low around 42. West wind around 5 mph.

7-Day Forecast

Nearby Schools and Colleges

Schools and campuses linked to Round Top, NJ. Select a name to open its map and contact details.

Code Name City ZIP
490869 American Institute-Somerset Somerset (NJ) 08873-1100

Nearby Transit Stations (23)

Rail and bus stations connected to Round Top, NJ. Select a station to open its map and address details.

Code Name Address Type
NBK New Brunswick station French and Albany Streets RAIL
MET Metropark station 100 Middlesex-Essex Turnpike RAIL
EWR Newark Liberty International Airport Newark Liberty International Airport RAIL
PJC Princeton Junction station 2 Wallace Road RAIL
NWK Pennsylvania Station 1 Raymond Plaza West RAIL

Closest post offices linked to Round Top.

Post Office Name City ZIP
Martinsvill Post Office Martinsville (NJ) 08836

Other cities in Somerset County

Cities, towns, neighborhoods & other populated places in Somerset County , NJ.

City Name Population Title
Hillsborough 40,105 Township in Somerset county, New Jersey
Voorhees 29,107 Township in Camden County, New Jersey
Montgomery 23,094 Township in Somerset County, New Jersey
North Plainfield 21,246 Borough in Somerset County, New Jersey
Somerville 12,157 Borough in Somerset County, New Jersey
Bound Brook 10,159 Borough in Somerset County, New Jersey
Manville 10,046 Borough in Somerset County, New Jersey
Bedminster 7,949 Township of New Jersey
Raritan 7,748 Borough in Somerset County, New Jersey
Bernardsville 7,556 Borough in New Jersey, United States
Watchung 6,007 Borough in Somerset County, New Jersey, United States
South Bound Brook 4,518 Borough in Somerset County, New Jersey