The Borough does not license any establishments to serve or sell alcoholic beverages inside borough limits, a policy that dates back to 1873.
According to the United States Census Bureau, the borough has a total area of 1.9 square miles (5.0 km²), of which, 1.8 square miles (4.7 km²) of it is land and 0.1 square miles (0.2 km²) of it (4.69%) is water.
The Cooper River serves as the Northern border of Collingswood.
There were 6,263 households out of which 25.6% had children under the age of 18 living with them, 38.2% were married couples living together, 13.1% had a female householder with no husband present, and 44.7% were non-families. 36.6% of all households were made up of individuals and 14.0% had someone living alone who was 65 years of age or older. The average household size was 2.27 and the average family size was 3.05.
In the borough the population was spread out with 21.8% under the age of 18, 8.6% from 18 to 24, 32.9% from 25 to 44, 22.3% from 45 to 64, and 14.4% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 88.6 males. For every 100 females age 18 and over, there were 85.8 males.
The median income for a household in the borough was $43,175, and the median income for a family was $57,987. Males had a median income of $40,423 versus $30,877 for females. The per capita income for the borough was $24,358. About 3.8% of families and 6.1% of the population were below the poverty line, including 6.8% of those under age 18 and 7.2% of those age 65 or over.
Collingswood's commissioners are Mayor Jim Maley, Joan Leonard, and Mike Hall.
Students in grades 9-12 from Woodlynne attend Collingswood High School as part of a sending/receiving relationship with the Woodlynne School District. Students in grades 10-12 from Oaklyn attend the high school as part of a sending/receiving relationship with the Oaklyn Public School District.
Collingswood's arts community hosts "2nd Saturdays," with the town's art galleries and restaurants hosting new exhibitions by local, national, and international painters, sculptors, and photographers. Collingswood is also home to a growing theater scene, with the Collingswood Community Theatreand the Collingswood Shakespeare Company offering performances throughout the year. The Ballroom and Theater at Collingswood hosts local theatrical productions as well as national recording artists such as Ben Folds and The Beach Boys. Additionally, the borough's annual Collingswood Book Festival brings recognized authors including Camille Paglia and Joshua Piven of the Worst-Case Scenario series.
Collingswood is noted for its gay and lesbian community, many of whom are leaving surrounding states lured by gay-friendly laws in New Jersey. Collingswood Mayor Jim Maley was one of a handful of New Jersey mayors to perform midnight Civil Union ceremonies the day the state's Civil Union law took effect in 2006. In 2004, The Philadelphia Inquirer wrote about Collingswood's "fast growing gay and lesbian community.
Real Estate prices in Collingswood have skyrocketed since 2001. In 2006, Philadelphia Magazine ranked Collingswood number one in the region for price growth of homes and property. Values were up about 100% over five years.
Knight Park and Haddon Avenue are the heart of Collingswood. Knight Park is the home to daytime recreation of the town. It is located across the street from Collingswood High School and it hosts the home games of the high school's sports teams, such as Women's Field Hockey, Lacrosse, Baseball and Softball. During the Summer months, the borough offers outdoor movies and classical concerts in Knight Park.
The town is also host to a championship marching band at the High School level. The Collingswood Panther Marching Band, under the direction of Joe Lerch, has captured titles for the United States Scholastic Band Association (USSBA) All-States and New Jersey State Championships in the years 2004 and 2005, and participated in the National Championships in 2006. In 2007, the band was ranked among the highest scoring Group 1 bands in the USSBA, winning five competitions, and receiving many awards for music, effect, visual, guard and percussion. The band finished fourth in their second National Championships appearance, competing as a Group 2 band at M&T Bank Stadium in Baltimore, Maryland on November 16, 2007. In 2008, the band will perform as part of the Susan G. Komen Walk for the Cure on Mothers' Day.
Collingswood has several historic homes, including the Stokes-Lees mansion, located in the 600 block of Lees Avenue, which dates back to the 18th Century, making it one of the oldest houses in Camden County.