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Middlesex County, Connecticut facts for kids

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Middlesex County
Raymond E Baldwin Courthouse
Raymond E Baldwin Courthouse
Map of Connecticut highlighting Middlesex County
Location within the U.S. state of Connecticut
Map of the United States highlighting Connecticut
Connecticut's location within the U.S.
Country  United States
State  Connecticut
Founded May, 1785
Named for Middlesex, England
Seat none (since 1960)
Middletown (before 1960)
Largest city Middletown
Area
 • Total 439 sq mi (1,140 km2)
 • Land 369 sq mi (960 km2)
 • Water 70 sq mi (200 km2)  15.9%%
Population
 (2020)
 • Total 164,245 Decrease
 • Density 370/sq mi (140/km2)
Time zone UTC−5 (Eastern)
 • Summer (DST) UTC−4 (EDT)
Congressional districts 1st, 2nd, 3rd


Middlesex County is a county located in the south-central part of Connecticut, a state in the United States. As of the 2020 census, about 164,245 people live here. The county was created a long time ago, in May 1785. It was formed from parts of Hartford County and New London County.

Middlesex County is part of a larger area called Greater Hartford. This area includes the cities of Hartford, East Hartford, and Middletown.

Like all eight counties in Connecticut, Middlesex County doesn't have its own county government anymore. This means there's no "county seat" or main government office for the county. Instead, local towns handle most government activities. These include things like local police, fire and rescue services, snow removal, and schools. Sometimes, nearby towns will share resources like water or gas. In 2022, the U.S. Census Bureau started to recognize "councils of governments" in Connecticut as similar to counties for official purposes. These councils took over some local government jobs after the county governments were stopped in 1960. The old counties still exist in name, but they don't have a government role.

Exploring Middlesex County's Geography

Middlesex County covers a total area of 439 square miles. Out of this, 369 square miles is land, and 70 square miles (about 15.9%) is water. It is the smallest county in Connecticut when you look at just its land area. It's the second smallest by total area.

The land in the county changes from mostly flat areas near the Connecticut River and the Atlantic coast to gently rolling hills further away. The highest point in the county is in the Meshomasic State Forest, which is about 916 feet above sea level. The lowest point is at sea level, along the coast.

Middlesex County is also home to the beautiful Wadsworth Falls.

Neighboring Counties

Middlesex County shares borders with several other counties:

Protected Natural Areas

Parts of these national protected areas are found in Middlesex County:

People of Middlesex County

As of the 2010 United States census, there were 165,676 people living in Middlesex County. There were 67,202 households and 43,743 families. The population density was about 448.6 people per square mile.

Most people in the county (89.2%) were white. Other groups included 4.7% black or African American, 2.6% Asian, and 0.2% American Indian. About 4.7% of the population was of Hispanic or Latino origin. Many people had ancestors from Italy (24.6%), Ireland (21.2%), England (14.0%), and Germany (13.5%).

The average age of people in the county was 43.1 years. The median income for a household was $74,906. This means half of the households earned more than this, and half earned less. About 6.1% of all people in the county lived below the poverty line.

Communities in Middlesex County

Map of Middlesex County Connecticut With Municipal Labels
Map of Middlesex County, Connecticut showing cities, boroughs, towns, and CDPs

Middlesex County has one city and several towns. Some towns also have smaller areas called "villages." These villages are part of the town and don't have their own separate governments.

City

Towns

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