ZIP Code 08887
About Three Bridges
Three Bridges is an unincorporated community and census-designated place (CDP) located within Readington Township in Hunterdon County, in the U.S. state of New Jersey, on the South Branch Raritan River. It is named for the three original bridges which crossed the river. As of the 2020 census, Three Bridges had a population of 321.
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Area Profile
US Census (ACS 5-year · Gazetteer)
1,377
population
$104,091
median household income
1,698
people / sq mi
$268,200
median home value
$1,817
median gross rent
40.3
median age
606
housing units
566
households
0.8
land area (sq mi)