Berkeley Heights: In Money magazine's 2013 Best Places to Live rankings, Berkeley Heights was ranked 6th in the nation, the highest among the three places in New Jersey.

‍Clark: New Jersey Monthly magazine ranked Clark as its 33rd best place to live in its 2008 rankings of the "Best Places To Live" in New Jersey.

‍Cranford: A township in Union County. Voted the best downtown in New Jersey.

‍Elizabeth: The largest city and the county seat of Union County, New Jersey. Elizabeth is the fourth most populous city. Singer sewing machines was the first major industry in Elizabeth.

‍Garwood: A borough in Union County. Has a population of 4153.

‍Hillside: A township in Union County. The home of Bristol-Myers Squibb. The former home of Lionel Trains.

‍Kenilworth: A borough in Union County. The population is about 8,000.

‍Linden: City in southeastern Union County that is part of the New York Metropolitan area. Located 13 miles southwest of Manhattan.

‍Maplewood: A suburban township in Essex County.

‍Millburn: A suburban township in Essex County.

‍Mountainside: New Jersey Monthly magazine ranked Mountainside as its 16th best place to live in its 2008 rankings of the "Best Places To Live" in New Jersey, as well as eighth in the 2010 list.

‍New Providence: According to local tradition, George Washington spent the night in a local home, which still stands to this day.

‍Rahway: Rahway and the surrounding area were once the home of the Lenni Lenape Native Americans, and tradition states that the city was named after Rahwack, a local tribal chief.

‍Roselle: On January 19, 1883, the world's first electric lighting system employing overhead wires began service in Roselle. It had been built by Thomas Edison to demonstrate that an entire community could be lit by electricity.

‍Roselle Park: In 1907, the first poured concrete building in the world, now the Robert Gordon School, was built in Roselle Park using Edison's revolutionary process.

‍Short Hills: Originally, the area that would become Short Hills was part of Springfield Township, Union County, New Jersey, and its eponymous hills are thought to have played a role in the movement of the Continental Army under George Washington during the Battle of Springfield. Now it is an unincorporated community within Millburn Township of Essex County.
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Springfield: A township in Union County with a population of almost 16,000. Springfield was formed as a township on April 14, 1794, from portions of Elizabeth Township and Newark Township, while the area was still part of Essex County.

‍Summit: Summit has consistently ranked high in NJ Monthly's biennial Top 100 Towns. In 2019, Summit was ranked the second best place to live.

‍Union: A township in Union County. It used to be called Connecticut Farms in the 18th century.Vauxhall: Borders Millburn, Maplewood, and Springfield.

Watchung: Watchung is a borough in Somerset County. Eaton House is a Watchung historic site that was owned by congressman Charles Aubrey Eaton and has been the residence of other notables over the years.

‍Westfield: Was ranked the 30th safest  city in the United States in 2014.