Map of Stoneybrook from the 1990 BSC calendar.

Map of Stoneybrook from The Baby-Sitters Club Mystery Game

 Stoneybrook is a small suburban-like town in the state of Connecticut in The Baby-Sitters Club book series by Ann M. Martin. Much of Stoneybrook is modeled after Princeton, New Jersey where the author grew up.

Stoneybrook is the hometown of many of the characters in the books, including the Baby-Sitters Little Sister book series by Ann M. Martin which focuses on Karen Brewer, Kristy Thomas' little stepsister. Stoneybrook was first mentioned in Book #1 Kristy's Great Idea.


The zip code for Stoneybrook is 06800, which according to The Baby-Sitters Club Secret Santa, it shares with the nearby town of New Hope.

The town has a mayor and town council. There is one local newspaper, a radio station, and a downtown area. Stoneybrook is part urban, part country, and the outskirts are rural. The mail is postmarked in Stamford. The people from Stoneybrook are called "Stoneybrookites."


The city closest to Stoneybrook is Stamford (which is a real city in Connecticut). It is approximately an hour from New York City by train that goes to Grand Central Station. Stoneybrook is only a few exits away from Stoneybrook on the expressway via I-95. Several adults in the town commute to Stamford.

Nearby towns include Mercer, Howard Township, and New Hope. The historic Greenvale is about 30 miles from Stoneybrook. Chatham is about an hour north of the Stoneybrook.

Hartford is ninety minutes away, it borders the Long Island Sound. If you get up at 5 a.m. you can reach Boston by 12 pm.

The town turns 250 in Graduation Day, there will be a parade and Claudia Kishi has been working on one of the floats.


Stoneybrook was founded in 1791 and was built over ancient burial grounds. In Graduation Day, Claudia mentions that one of the founders is General John Bradshaw. He has a statue in downtown Stoneybrook.

During the Civil War, Abigail Grey, a leading abolitionist, and a Quaker has been a resident at the time. She was suspected of being a railroad stationmaster.

During World War 2 Mayor Armstrong was one of the few men remaining in Stoneybrook because he had a heart problem.

There was a huge storm when the BSC was in the first grade that closed down school and left the town without electricity or phones for two days.

In Dawn and the School Spirit War, Mary Anne Spier mentions that there is a long standing rivalry with Howard Township. It goes back to when Richard and Sharon Spier were in high school.

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