The Farmington Valley is located west of Hartford, Connecticut

Hartford, Connecticut

Hartford is the capital of the U.S. state of Connecticut. The seat of Hartford County until Connecticut disbanded county government in 1960, it is the second most populous city on New England's largest river, the Connecticut River. As of the 2010 Census, Hartford's population was 124,775, making...

 in Hartford and Litchfield Counties. It is defined by the Farmington River

Farmington River

The Farmington River is a river located in northwest Connecticut, with major tributaries extending into southwest Massachusetts. Via its longest branch , the Farmington's length increases to , making it the Connecticut River's longest tributary by a mere over the major river directly to its...

, which runs through it.

The term Farmington Valley, as used in the local vernacular, refers primarily to the towns of Farmington

Farmington, Connecticut

Farmington is a town located in Hartford County in the Farmington Valley area of central Connecticut in the United States. The population was 25,340 at the 2010 census. It is home to the world headquarters of several large corporations including Carrier Corporation, Otis Elevator Company, and Carvel...

, Avon

Avon, Connecticut

Avon is a town in the Farmington Valley region of Hartford County, Connecticut, United States. , the town had a population of 18,098.Avon is a suburb of Hartford. Avon Old Farms School, a prestigious boarding school, is located there. In 2005, Avon was named the third-safest town in America by...

, Simsbury, Canton

Canton, Connecticut

Canton is a rural town, incorporated in 1806, in Hartford County, Connecticut. The population was 8,840 at the 2000 census, and has grown to 10,292 as of the 2010 census. It is bordered by Granby on the north, Simsbury on the east, Avon and Burlington on the south, New Hartford on the west, and...

 and Granby

Granby, Connecticut

Granby is a town in Hartford County, Connecticut, United States. The population was 10,347 at the 2000 census. The town center was defined as a census-designated place known as Salmon Brook in the 2000 census....

. However, when defined by the course of the Farmington River, or by its entire watershed, the term can refer to large areas of land across the north central portion of Connecticut and into southern Massachusetts.