The borough was formed as New Shrewsbury by an Act of the New Jersey Legislature on August 15, 1950, based on the results of a referendum held on July 18, 1950, after breaking away from Shrewsbury Township. It was renamed "Tinton Falls" in 1975, to avoid postal errors. The name came from Lewis Morris's plantation, Tinton Manor, which employed free white workers and slaves. The borough is also home to the highest waterfall on New Jersey's coastal plain.
According to the United States Census Bureau, the borough has a total area of 15.6 square miles (40.5 km²), of which, 15.6 square miles (40.4 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.19%) is water.
There were 5,883 households out of which 34.1% had children under the age of 18 living with them, 56.0% were married couples living together, 9.2% had a female householder with no husband present, and 32.4% were non-families. 27.2% of all households were made up of individuals and 7.3% had someone living alone who was 65 years of age or older. The average household size was 2.51 and the average family size was 3.11.
In the borough the population was spread out with 25.5% under the age of 18, 5.2% from 18 to 24, 36.4% from 25 to 44, 22.1% from 45 to 64, and 10.8% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 90.6 males. For every 100 females age 18 and over, there were 86.2 males.
The median income for a household in the borough was $68,697, and the median income for a family was $79,773. Males had a median income of $58,098 versus $37,857 for females. The per capita income for the borough was $31,520. About 2.6% of families and 3.9% of the population were below the poverty line, including 4.3% of those under age 18 and 3.3% of those age 65 or over.
The Mayor is the Chief Executive Officer of the Borough and is elected for a four-year term. The Borough Business Administrator reports to, and may act for the Mayor, in the Mayor's absence. The Borough Council is the legislative body. There are five members elected at large for staggered four-year terms.
The incumbent mayor is Peter Maclearie, who was elected in 2005.
Members of the Borough Council are Michael Skudera (term ends June 30, 2009), Council President Gary Baldwin (2011), Paul J. Ford (2009) and Duane Morrill (2011).Their is one vacant seat for an unexpired term (2011).
In 2004, Mahala F. Atchison School was designated as a Governors School of Excellence, and in 2005 Tinton Falls Middle School earned that designation. Additionally all three schools have won numerous Best Practices awards.
Members of the Board of Education are: Peter Karavites (President), Joseph Defino (Vice President), Nicole Alfano, Ken Hager, Tracy Johnson, Michael Laffey, Sandra Lopez, Steven Schertz, Wayne Wiebalk
John Russo was hired as the Superintendent in November 2007.
Students in public school for grades 9 to 12 attend Monmouth Regional High School, located in Tinton Falls. The school serves students from Eatontown, Shrewsbury Township and Tinton Falls. Students also come from the military installations of Fort Monmouth and Naval Weapons Station Earle.
Ranney School is a coeducational, nonsectarian K-12 private school with an enrollment of 785 students. The school was founded in 1960, and its campus occupies 60 acres off Hope Road.