The neighborhood lies between Flatlands and Mill Basin to the east, and Gerritsen Beach, Midwood, and Sheepshead Bay to the south and west.

These beach strips form a surf-barrier and allow salt marshes to thrive: ...Gerritsen Creek was a freshwater stream that once extended about twice as far inland as it does today.

Pits for cooking and preparing food dating from 800 to 1400 AD were uncovered in Marine Park, along with deer and turtle bones, oyster shells, and sturgeon scales.

...Fearing that the relatively pristine marshland around Gerritsen Creek would be destroyed, Frederick B. Pratt and Alfred T. White offered the city 150 acres (0.6 km2) in the area for use as a park in 1917.

The house is listed on the National Register of Historic Places and is a New York City designated landmark.

[14]: 51  Urban planner Robert Moses expanded Marine Park in 1935, and the city acquired 1,822 acres (737 ha) of land.

Marine Park is located in zip code 11234, which also includes Mill Basin, Bergen Beach/Georgetown, and the southern portion of Flatlands.

Based on data from the 2010 United States Census, the combined population of Georgetown, Marine Park, Bergen Beach, and Mill Basin was 45,231, an increase of 2,291 (5.3%) from the 42,940 counted in 2000.

[16] By 2011, the number of black residents in Southeast Brooklyn had risen 241%, the steepest such increase of any area in the city.

The park's 530 acres (2.1 km2) of grassland and salt marsh surround the westernmost inlet of Jamaica Bay.

[12] There is also a playground, several sports fields, and 0.83 mile-long running path, all of which were built on the ancient Keshawchqueren burial ground.