Area codes 201 and 551

The Grimes Homestead, also known as Grimes Farm, is a historic home in Mountain Lakes, Morris County, New Jersey, United States. It was constructed in the late 18th Century and served as a way station on the Underground Railroad for runaway slaves.Anti-slavery advocate and Quaker, Dr. John Grimes (1802–1875), was born in this house and lived here until 1828. He moved back to the homestead in 1832, but subsequently moved to the neighboring community of Boonton. He was once arrested for hiding a runaway slave, and was repeatedly harassed by supporters of slavery. The house is now privately owned, and is not open to the public.

Bowers-Livingston-Osborn House is located in Parsippany-Troy Hills, Morris County, New Jersey, United States. The house was built in 1768 and added to the National Register of Historic Places on June 19, 1973.

Parsippany is a census-designated place (CDP) and the central community in the township of Parsippany-Troy Hills, Morris County, New Jersey, United States. It includes development around Lake Parsippany, as well as neighborhoods in the eastern part of the township, between Troy Hills to the south and Lake Hiawatha to the north. The southern end of Boonton Reservoir is also in the CDP. Interstate 80 and Interstate 287 intersect in the center of the CDP. I-80 leads east 24 miles (39 km) to its terminus at Interstate 95 in Teaneck and west 46 miles (74 km) to the Delaware Water Gap, while I-287 leads northeast 25 miles (40 km) to Suffern, New York, and southwest 26 miles (42 km) to Somerville. Parsippany was first listed as a CDP prior to the 2020 census. However, in common usage, "Parsippany" usually applies to the entire township.

The Parsippany-Troy Hills School District is a comprehensive community public school district serving students in pre-kindergarten through twelfth grade from Parsippany-Troy Hills Township in Morris County, New Jersey, United States. The Parsippany Troy-Hills School District serves students in ten elementary schools, two middle schools, two high schools and an adult education center. The community served by the district is ethnically, culturally and linguistically diverse. As of the 2018–19 school year, the district, comprising 14 schools, had an enrollment of 7,248 students and 643.8 classroom teachers (on an FTE basis), for a student–teacher ratio of 11.3:1.The district is classified by the New Jersey Department of Education as being in District Factor Group "GH", the third-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.

Rainbow Lakes is a census-designated place (CDP) in Parsippany-Troy Hills Township, Morris County, New Jersey, United States. It is in the western part of the township and consists of housing built around Rainbow Lake (or "Rainbow Lakes" on federal maps), plus a zone of commercial buildings to the east of the lakes. It is bordered to the east by Parsippany proper, to the north by the borough of Mountain Lakes, and to the west by Denville Township. The northern edge of the CDP is formed by U.S. Route 46 and the NJ Transit Montclair-Boonton Line, and Interstate 80 forms the southern edge. It is 21 miles (34 km) northwest of Newark and 30 miles (48 km) west of the George Washington Bridge over the Hudson River. Rainbow Lakes was first listed as a CDP prior to the 2020 census.

Parsippany–Troy Hills Township, commonly known as Parsippany ( par-SIP-ə-nee), is a township in Morris County, New Jersey, United States. As of the 2010 United States Census, the township's population was 53,238, reflecting an increase of 2,589 (+5.1%) from the 50,649 counted in the 2000 Census, which had in turn increased by 2,171 (+4.5%) from the 48,478 counted in the 1990 Census.The name Parsippany comes from the Lenape Native American sub-tribe, which comes from the word parsipanong, which means "the place where the river winds through the valley". Parsippany–Troy Hills is the most populous municipality in Morris County. The name Troy Hills was changed from Troy, to avoid confusion of mail being sent erroneously to Troy, New York.Parsippany–Troy Hills was incorporated as a township by an act of the New Jersey Legislature on March 12, 1928, from portions of Hanover Township, based on the results of a referendum held on May 9, 1928, that split off both East Hanover Township and Parsippany–Troy Hills from Hanover Township.Since 2006, Parsippany–Troy Hills has been consistently recognized by Money magazine as one of the Best Places to Live in the United States. That year Parsippany was ranked 17th on the list, the highest-ranked location in New Jersey. In 2008, it moved up to 13th position. Parsippany returned to Money magazine's "Best Places" list in 2012, in the 15th position, and again in 2014, where it ranked 16th with Money citing its "Arts and leisure". Parsippany's ranking improved to the fifth-ranked position on the "Best Places" list in 2016, but in 2017 dropped to 33rd. In 2018, Parsippany again made the list, at the 23rd-ranked position.

Parsippany Christian School (PCS) was a private Christian school in Parsippany, New Jersey, United States. Parsippany Christian School was founded in 1970. Parsippany Christian School consists of pre-kindergarten though twelfth grades. The purpose of the school is to provide a sound academic education integrated with a Christian view of God and the world. Social activities, athletics, and discipline procedures are also governed by biblical principles. The school is a member of American Association of Christian Schools (AACS) and the Garden State Association of Christian Schools. The school closed in 2019. As of the 2017–18 school year, the school had an enrollment of 109 students (plus 4 in PreK) and 14.3 classroom teachers (on an FTE basis), for a student–teacher ratio of 7.6:1. The school's student body was 35.8% (39) White, 33.0% (36) Black, 19.3% (21) Hispanic, 8.3% (9) Asian and 3.7% (4) two or more races.

Mountain Lakes is a NJ Transit station in Mountain Lakes, Morris County, New Jersey, United States, along the Montclair-Boonton Line. The first station heading eastbound not concurrent with the Morristown Line, Mountain Lakes station serves a one-track main line with one low-level platform on the southbound side of the track. Mountain Lakes station is located on Midvale Road, located off of Interstate 287. As of 2021, the 1912 stone station building built by the Delaware, Lackawanna and Western Railroad is a restaurant called The Station at Mountain Lakes.

Rainbow Lake is a residential lake, natural, spring-fed body of water, a private community and unincorporated area within Parsippany-Troy Hills, New Jersey, United States. The lake is used for many recreational activities, including: swimming, fishing, ice skating, and non-motor boating. The Lake has a sand beach and a floating dock, and which are used by most members of the lake, especially throughout the summer months. The Rainbow Lake Community Club (RLCC) runs a clubhouse available to all members of the lake, which provides a volleyball court, tennis court, and a playground, organizes many community activities, and hosts a bar for the adults every weekend. Rainbow Lake is a member of an athletic organization called Hub Lakes, which includes other local communities: Lake Valhalla, Lake Arrowhead, Estling Lake, Indian Lake, Lake Intervale, Mountain Lakes, Lake Parsippany, Cedar Lake, Rock Ridge, Lake Telemark, and White Meadow Lake. Hub Lakes provides competition between the lakes in bowling, diving, golf, horseshoes, roller hockey, softball, swimming, table tennis, tennis, track & field, and volleyball.

Mountain Lakes is a borough in Morris County, New Jersey, United States, and a suburb of New York City. As of the 2010 United States Census, the borough's population was 4,160, reflecting a decline of 96 (-2.3%) from the 4,256 counted in the 2000 Census, which had in turn increased by 409 (+10.6%) from the 3,847 counted in the 1990 Census.Originally a planned community, the borough was named for a pair of lakes which served to distinguish Mountain Lakes as "the first year-round residential lake community in northwestern New Jersey." Mountain Lakes was incorporated as a borough by an act of the New Jersey Legislature on March 3, 1924, from portions of Boonton Township and Hanover Township, subject to the results of a referendum passed on April 29, 1924.The borough is one of the state's highest-income communities. In the 2014-2018 ACS, Mountain Lakes had a median household income of $216,250, ranked highest in the state, more than double the statewide median of $79,363.In 2010, Forbes.com listed Mountain Lakes as 210th in its listing of "America's Most Expensive ZIP Codes", with a median home price of $1,045,401.Mountain Lakes ranked among the highest annual property tax bills in New Jersey, and highest in Morris County, in 2018 of $20,471, compared to a statewide average of $8,767. New Jersey Monthly magazine ranked Mountain Lakes as the 26th best place to live in New Jersey in its rankings of the "New Jersey's Top Towns 2011-2012" in New Jersey.Mountain Lakes station is the first train train station heading eastbound not concurrent with the nearby Morristown Line. NJ Transit offers service on the Montclair-Boonton Line.

The Mountain Lakes Schools is a comprehensive community public school district that serves students in kindergarten through twelfth grade from Mountain Lakes, in Morris County, New Jersey, United States. As of the 2019–20 school year, the district, comprised of four schools, had an enrollment of 1,379 students and 155.5 classroom teachers (on an FTE basis), for a student–teacher ratio of 8.9:1.The district is classified by the New Jersey Department of Education as being in District Factor Group "J", the 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.Students from Boonton Township attend the district's high school as part of a sending/receiving relationship.

The Craig School is an independent, private coeducational day school located in Mountain Lakes and Montville, in Morris County, New Jersey, United States, serving students in second through twelfth grades. In the 2015-16 school year, the Lower School (grades 2-8 in Mountain Lakes) had 109 students and the High School (grades 9-12 in Boonton) had 28 students. As of the 2017–18 school year, the school had an enrollment of 122 students and 26.8 classroom teachers (on an FTE basis), for a student–teacher ratio of 4.6:1. The school's student body was 79.5% (97) White, 9.0% (11) Hispanic, 5.7% (7) Black and 5.7% (7) Asian. The Lower School director is Janet Cozine, the High School director is Dr. Eric Caparulo, and Dr. Kara A. Loftin is the Head of School.The Craig School was founded in 1980. The school specializes in the education of children who have encountered difficulty succeeding in the traditional classroom environment. The Craig School specializes in students limited to dyslexia, auditory processing disorder and attention-deficit hyperactivity disorder, using a language-based curriculum. The Craig High School was added in 2000. In 2013, The Craig High School moved to new shared facilities at the Boonton High School.In September 2015, the school acquired its current Lower and Middle School facilities, and administrative building, located in Mountain Lakes, New Jersey, from The Wilson School (which is now defunct). Following the purchase, The Craig School will begin a renovation program on the Mountain Lakes facilities, including the expansion of the school's Orton Gillingham teaching wing for students with dyslexia and related academic learning disabilities, science lab and technology teaching areas and art studio space. A new state-of-the-art occupational therapy room is also in the preliminary plan. The renovation program, which will be managed to avoid operational disruption, is expected to be completed by September 2016.