There are five communities that surround Peach Lake; one farm, three cooperatives and two home owner associations.

The large area of Peach Lake shoreline they own is the way it was hundreds of years ago.

[4] The area from there to the current state border was given to New York as part of the OBLONG, EQUIVALENCY or Connecticut's Panhandle agreement.

The area was a strong dairy community from the 1850s through 1915, when the Borden Condensed Milk factory was in production in Brewster.

By 1915, the factory closed after New York City condemned much of the property along the rivers and lakes in the area to protect the water quality flowing into the newly created Croton Reservoir system.

The Bloomer family, originally from Rye, New York, started farming the property on the west side of the lake prior to 1760.

This Peach Lake meeting house, like many others, starting at Long Island Sound and heading north, was built in the disputed area between the Connecticut and New York colonies called the Oblong.

The Ryder family, who have for generations controlled the Putnam County National Bank, have farmed land on the northwest side of Peach Lake since the 18th century.

North Salem was part of the tribal land of a Wappinger Indian band known as the Kitawonks (or Kitchawanks), who laid claim to all the lands bordering the Kitchewan or Croton River that separates North Salem from present-day Somers.

Spring fed Peach Lake is located in the towns of North Salem and Southeast.

[12] All of the Peach Lake census-designated place in Westchester County is in the North Salem Central School District.