ZIP Code 07846
About Johnsonburg
Johnsonburg is an unincorporated community and census-designated place (CDP) located within Frelinghuysen Township in Warren County, in the U.S. state of New Jersey, that was created as part of the 2010 United States census. As of the 2020 Census, the CDP's population was 381, up from 101 in the 2010 Census.
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Area Profile
US Census (ACS 5-year · Gazetteer)
29
population
$114,000
median household income
354
people / sq mi
$440,000
median home value
69.4
median age
12
housing units
12
households
0.1
land area (sq mi)