Deacon Andrew Hetfield House

Mountainside is a borough in Union County, in the U.S. state of New Jersey. The borough is located on a ridge in northern-central New Jersey, within the Raritan Valley and Rahway Valley regions in the New York metropolitan area. As of the 2020 United States census, the borough's population was 7,020, an increase of 335 (+5.0%) from the 2010 census count of 6,685, which in turn reflected an increase of 83 (+1.3%) from the 6,602 counted in the 2000 census.Mountainside was incorporated as a borough on September 25, 1895, from portions of Westfield Township, based on the results of a referendum held the previous day.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.

The Miller-Cory House is located in Westfield, Union County, New Jersey, United States. The house was built in 1740 and was added to the National Register of Historic Places on November 3, 1972.

The Mountainside School District is a community public school district, that serves students in pre-kindergarten through eighth grade in the borough of Mountainside, in Union County, New Jersey, United States.As of the 2020–21 school year, the district, comprised of two schools, had an enrollment of 725 students and 71.3 classroom teachers (on an FTE basis), for a student–teacher ratio of 10.2:1.The district is classified by the New Jersey Department of Education as being in District Factor Group "I", the second-highest of eight groupings. District Factor Groups organize districts statewide to allow comparison by common socioeconomic characteristics of the local districts. From lowest socioeconomic status to highest, the categories are A, B, CD, DE, FG, GH, I and J.Public school students in ninth through twelfth grades attend Governor Livingston High School in Berkeley Heights, as part of a sending/receiving relationship with the Berkeley Heights Public Schools that is covered by an agreement that runs through the end of 2021–22 school year. As of the 2020–21 school year, the high school had an enrollment of 960 students and 87.9 classroom teachers (on an FTE basis), for a student–teacher ratio of 10.9:1.Students also have the choice to attend the programs of the Union County Vocational Technical Schools, which serve students from across Union County.

Gusmer Enterprises, Inc. was founded in 1918 to provide products to the brewing market. It currently manufactures and sells a wide range of products geared towards the winemaking, brewing, edible oil, and pharmaceutical markets. Gusmer has partnered with several well-known international companies to provide their products to Gusmer's core beverage markets, as well as to expand Gusmer's manufactured products into other industries. Partnership companies include Millipore Sigma, BASF, Chr. Hansen and many others mentioned below. Gusmer's headquarters are located in Mountainside, New Jersey. Other locations include their primary manufacturing plants in Fresno, CA and Waupaca, WI as well as their analytical services group located in Napa, CA and the Gusmer Sonoma Store located in Windsor, CA.

Echo Lake Country Club is a private, member-owned country club located in Westfield, New Jersey. The club was founded in 1899 and the golf course was designed by Donald Ross in 1913.

The Westfield Public Schools is a comprehensive community public school district that serves students in pre-kindergarten through twelfth grade from Westfield, in Union County, New Jersey, United States.As of the 2018–19 school year, the district, comprised of 10 schools, had an enrollment of 6,304 students and 500.4 classroom teachers (on an FTE basis), for a student–teacher ratio of 12.6:1.The district is classified by the New Jersey Department of Education as being in District Factor Group "I", the second-highest of eight groupings. District Factor Groups organize districts statewide to allow comparison by common socioeconomic characteristics of the local districts. From lowest socioeconomic status to highest, the categories are A, B, CD, DE, FG, GH, I and J.

The Presbyterian Church in Westfield, New Jersey was established in 1728, when twelve to eighteen of the early settlers built a log house for worship near what is now Benson Place.

Watchung Reservation is the largest nature reserve in Union County, New Jersey, United States. Covering 1,945 acres, it is bounded by the city of Summit, the borough of Mountainside, and the townships of Berkeley Heights, Scotch Plains, and Springfield. The reservation consists mainly of the upper valley of Blue Brook, between the ridges of First Watchung Mountain and Second Watchung Mountain. A dam near the headwaters of the creek creates Lake Surprise.

The Shady Rest Golf and Country Club is located at 820 Jerusalem Road in the Township of Scotch Plains in Union County, New Jersey. Established in 1921, it was one of the first, if not the first, African American country clubs in the United States. From 1931 to 1964, it was the home of John Shippen (1879–1968), the first American golf professional and the first African American to compete in the U.S. Open. It was added to the National Register of Historic Places on July 7, 2022, for its significance in entertainment, ethnic heritage, recreation, and social history from 1921 to 1964. The township acquired the property in 1938 and converted it to a public golf course in 1964.

The Westfield Memorial Library is located at 550 East Broad Street, in Westfield, Union County, New Jersey, United States. It is the only public library in Westfield.

Westfield Fire Headquarters is located in Westfield, Union County, New Jersey, United States. The firehouse was built in 1911 and added to the National Register of Historic Places on December 8, 1980.

Westfield is a New Jersey Transit railroad station on the Raritan Valley Line, in Westfield, Union County, New Jersey, United States.