Windsor is a town in Hartford County, Connecticut. It was the first English settlement in the state. It lies on the northern border of Connecticut's capital, Hartford. 

Poquonock is a northern area of Windsor that has its own zip code. Other unincorporated areas in Windsor include Rainbow and Hayden Station in the north, and Wilson and Deerfield in the south.

The Day Hill Road area is known as Windsor's Corporate Area, although other centers of business include New England Tradeport, Kennedy Industry Park and Kennedy Business Park, all near Bradley International Airport and the Addison Road Industrial Park.

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