Hillside, New Jersey Map and Directory

Regional Directory > States Menu > New Jersey

▲
▼

According to the United States Census Bureau, Hillside is a Township that is located in Union County, New Jersey at 40.70 degrees North and 74.23 degrees West. The township's time zone is America/New York, and the township's primary telephone area code is 973. The land area of Hillside is about 2.75 square miles, whereas the water area of the township is about 0.01 square miles. Union County's land area is about 103 square miles, so the township occupies about 2.7 percent of the county's total land area.

The Census Bureau estimates that Hillside had about 21,928 residents in 2019, which is approximately 7,974 people per square mile of land area.

According to recent American Community Survey data, the median household income in Hillside was about $75,239 per year.

The New Jersey counties map at upper right shows Union County, highlighted in red. Use the menu below to display interactive maps of Hillside, either in a frame on this page or in full-screen mode.

Use the menu below to display categorized Hillside directories.