Kings Park is located at . According to the United States Census Bureau, the CDP has a total area of, of which is land and, or 5.93%, is water.
Demographics
As of the census of 2010, there were 17,282 people and 6,212 households residing in the CDP. The population density was 2,787.4 per square mile. There were 6,469 housing units at an average density of 1,043.4/sq mi. The racial makeup of the CDP was 80.1% White, 5.1% African American, 0.1% Native American, 8.4% Asian, 0.02% Pacific Islander, 4.9% some other race, and 1.3% from two or more races. Hispanic or Latino of any race were 16.3% of the population. There were 6,212 households in 2010, out of which 34.6% had children under the age of 18 living with them, 60.2% were headed by married couples living together, 9.4% had a female householder with no husband present, and 27.1% were non-families. 23.3% of all households were made up of individuals, and 12.1% were someone living alone who was 65 years of age or older. The average household size was 2.71, and the average family size was 3.24. In the CDP, the population was spread out, with 23.3% under the age of 18, 6.6% from 18 to 24, 23.4% from 25 to 44, 29.4% from 45 to 64, and 17.2% who were 65 years of age or older. The median age was 43.3 years. For every 100 females, there were 93.7 males. For every 100 females age 18 and over, there were 90.8 males. Over the period 2007-2011, the median annual income for a household in the CDP was $92,921, and the median income for a family was $106,128. Males had a median income of $78,882 versus $55,872 for females. The per capita income for the CDP was $37,980. About 1.6% of families and 3.3% of the population were below the poverty line, including 2.6% of those under age 18 and 6.3% of those age 65 or over. Kings Park is largely a Catholic community, with nearly 60% identifying as Catholic. The town parish, St. Joseph’s has the largest census population of all religious communities in the Town of Smithtown. The current pastor is Father Peter J. Dugandzic and has been in service since June 26, 2019.
Landmarks
borders Long Island Sound and is accessible by the Sunken Meadow State Parkway. It is a part of the New York State Parks system. In addition to the water, the park has of public trails and 27 holes of golf. The park's facilities are used for different activities, among them various distance running competitions. "Cardiac Hill" is well known by local runners. The Nissequogue River, in length, empties into Long Island Sound and is used for different types of water activities. The river flows through the Nissequogue River State Park. Kings Park Bluff, sandwiched between Sunken Meadow State Park and Short Beach in Smithtown sits the Kings Park Bluff which empties into the Long Island Sound. Used as a boat launch and a popular fishing location for locals. Kings Park is home to Leo P. Ostebo Kings Park Heritage Museum, the only school community managed town heritage museum in the United States, which is located in the first school building built in 1928.
Notable people
The Carlson Family - In the 1950s, the Carlson family revolutionized human waste disposal with a number of highly innovative inventions that were manufactured and sold in Kings Park and whose patented plans were used throughout the world. The two main inventions are the and the . There are several additional inventions for these two main products including their , , and lifting apparatuses for loading and installation. These precast concrete cesspools and septic tanks are still manufactured and in use today worldwide. Kings Park is the hometown of Houston Astros catcher/second baseman/outfielder Craig Biggio. Biggio was named one of the five greatest second basemen of all time by baseball statistician Bill James. He is also the modern-era record-holder for HBPs with 273, and the first player in history to be named an All-Star at both the catcher and second baseman positions. Biggio was elected into the National Baseball Hall of Fame in 2015. Kings Park High School named their men's varsity baseball field after Craig Biggio. Other notable residents:
Percy Crosby, author, comics illustrator, creator of Skippy