This is not an official school page — it hasn't been claimed by a verified school representative yet. Claim This School

Elementary

Cos Cob School

300 EAST PUTNAM AVE., Cos Cob, CT 06807

School Information

2038694670

300 EAST PUTNAM AVE.
Cos Cob, CT 06807

PTO

This school doesn't have a PTO page yet.

Start This PTO's Page

No news posted yet.

September 2026

Slide the calendar left or right to see every day.

Sun

Mon

Tue

Wed

Thu

Fri

Sat

Labor Day — Schools Closed

Labor Day is celebrated in the United States on the first Monday of September. Today, many people think of it as the unofficial end of summer, a long weeke…

Labor Day — Schools ClosedLabor Day — Schools Closed Sep 7 at 12:00 AM

Labor Day is celebrated in the United States on the first Monday of September. Today, many people think of it as the unofficial end of summer, a long weeke…

Rosh Hashanah

The Jewish New Year, Rosh Hashanah begins a ten-day period of reflection leading to Yom Kippur. Many districts with significant Jewish communities close sc…

Rosh HashanahRosh Hashanah Sep 12 at 12:00 AM

The Jewish New Year, Rosh Hashanah begins a ten-day period of reflection leading to Yom Kippur. Many districts with significant Jewish communities close sc…

Yom Kippur

Yom Kippur, also known as the Day of Atonement, is the holiest day of the year in Judaism. Its history goes back thousands of years, all the way to the tim…

Yom KippurYom Kippur Sep 21 at 12:00 AM

Yom Kippur, also known as the Day of Atonement, is the holiest day of the year in Judaism. Its history goes back thousands of years, all the way to the tim…

No upcoming events yet.

No businesses have linked support to this school yet.

Cos Cob School

Cookie Preferences