Cities and Towns in Middlesex County, Connecticut

Founded in 1785, Middlesex County is one of 8 counties in the state of Connecticut. Historically, Middlesex County was formed from parts of Hartford and New London Counties. The city of Middletown is the county seat. With FIPS code of 7, Middlesex County has a population of 164,759 and area of 369 square miles (956 km²).

List of all cities in Middlesex County, CT alphabetically

City/Town	Postal Code	Area Code
Centerbrook, CT	06409	860/959
Chester, CT	06412	860/959
Clinton, CT	06413	860/959
Cobalt, CT	06414	860/959
Cromwell, CT	06416	860/959
Deep River, CT	06417	860/959
	06419	860/959
Durham, CT	06422	860/959
East Haddam, CT	06423	860/959
	06424	860/959
Essex, CT	06426	860/959
Fenwick, CT	06475	860/959
Haddam, CT	06438	860/959
Haddam Neck, CT	06424	860/959
Higganum, CT	06441	860/959
Ivoryton, CT	06442	860/959
Killingworth, CT	06419	860/959
Middle Haddam, CT	06456	860/959
Middlefield, CT	06455	860/959
Middletown, CT	06457	860/959
	06459	860/959
Moodus, CT	06469	860/959
Old Saybrook, CT	06475	860/959
Portland, CT	06480	860/959
Rockfall, CT	06481	860/959
Wesleyan, CT	06459	860/959
Westbrook, CT	06498	860/959

Major Cities and Towns in Middlesex County, Connecticut

Middletown

Area, Population, Zip Codes, and Coordinates

• Area: 42.3 square miles
• Population: Approximately 47,717 (2020 Census)
• Zip Codes: 06457, 06459
• Latitude and Longitude: 41.5623° N, 72.6506° W

Location and History

Middletown is the largest city in Middlesex County, located along the Connecticut River. It was originally settled in 1650 and was known as Mattabeseck, named after the local Native American tribe. The town was later renamed Middletown in 1653 to reflect its central location between the northern and southern parts of the Connecticut colony. During the 18th and 19th centuries, Middletown became a bustling port and manufacturing center, particularly known for its shipbuilding and trade industries. The city has a rich cultural history, with a vibrant downtown area that has been revitalized over the years. Middletown is also home to Wesleyan University, which has a significant impact on the city’s cultural and academic life.

Major Schools and Landmarks

Middletown is served by the Middletown Public Schools district, with Middletown High School and Woodrow Wilson Middle School being the primary educational institutions. The city is also home to Wesleyan University, a prestigious liberal arts college known for its strong academic programs and vibrant arts community. Major landmarks in Middletown include the Wadsworth Mansion at Long Hill, a historic estate that hosts events and public tours, and the Kidcity Children’s Museum, a popular attraction for families. The city’s downtown area features a mix of historic buildings, shops, and restaurants, creating a lively atmosphere. The Connecticut River, with its scenic views and recreational opportunities, is another key feature of Middletown’s landscape.

Cromwell

Area, Population, Zip Codes, and Coordinates

• Area: 12.9 square miles
• Population: Approximately 14,225 (2020 Census)
• Zip Codes: 06416
• Latitude and Longitude: 41.5951° N, 72.6459° W

Location and History

Cromwell is a town located in central Middlesex County, just south of Middletown. The town was originally part of Middletown and was known as the Upper Houses until it was incorporated as a separate town in 1851 and renamed Cromwell. The town’s name was chosen in honor of Oliver Cromwell, the English military and political leader. Cromwell developed as an agricultural community, with fertile land along the Connecticut River supporting farms and orchards. Over time, the town transitioned into a suburban community, with residential development increasing in the mid-20th century. Today, Cromwell is known for its quiet neighborhoods, excellent schools, and convenient access to major highways.

Major Schools and Landmarks

Cromwell is served by the Cromwell Public Schools district, with Cromwell High School and Cromwell Middle School being the primary educational institutions. The town is also home to the River Highlands State Park, a scenic park offering hiking trails and views of the Connecticut River. Major landmarks in Cromwell include the historic First Congregational Church, which dates back to 1840, and the Cromwell Belden Public Library, which serves as a community hub for learning and activities. The TPC River Highlands, a private golf course that hosts the annual Travelers Championship, is another significant landmark, attracting golf enthusiasts from across the region.

Old Saybrook

Area, Population, Zip Codes, and Coordinates

• Area: 15.0 square miles
• Population: Approximately 10,481 (2020 Census)
• Zip Codes: 06475
• Latitude and Longitude: 41.2918° N, 72.3759° W

Location and History

Old Saybrook is a historic town located at the mouth of the Connecticut River, along the Long Island Sound. The town was originally established as the Saybrook Colony in 1635 by a group of English Puritans and played a significant role in the early colonial history of New England. Old Saybrook was an important port and trade center during the 17th and 18th centuries, with a rich maritime heritage. The town is known for its well-preserved colonial architecture and charming coastal scenery. Old Saybrook has maintained its historic charm while also developing as a popular destination for tourists and seasonal residents.

Major Schools and Landmarks

Old Saybrook is served by the Old Saybrook School District, with Old Saybrook High School and Old Saybrook Middle School being the primary educational institutions. The town is also home to the Katharine Hepburn Cultural Arts Center, named after the legendary actress who lived in Old Saybrook for much of her life. Major landmarks in Old Saybrook include the Saybrook Breakwater Lighthouse, a historic lighthouse that marks the entrance to the Connecticut River, and the General William Hart House, a colonial-era home that is now a museum. The town’s scenic beaches, such as Harvey’s Beach, and marinas provide residents and visitors with opportunities for boating, fishing, and enjoying the coastal environment.

East Hampton

Area, Population, Zip Codes, and Coordinates

• Area: 36.8 square miles
• Population: Approximately 12,717 (2020 Census)
• Zip Codes: 06424
• Latitude and Longitude: 41.5743° N, 72.5026° W

Location and History

East Hampton is a town located in the eastern part of Middlesex County, near Lake Pocotopaug. The town was incorporated in 1767 and was originally known for its iron works and bell-making industries. The Bevin Brothers Manufacturing Company, established in 1832, is the last remaining bell manufacturer in the United States and continues to operate in East Hampton. The town’s industrial past is reflected in its historic buildings and landmarks, many of which have been preserved. East Hampton’s location near the lake and its rural charm have made it a desirable place to live, with a strong sense of community and a focus on preserving its natural and historic resources.

Major Schools and Landmarks

East Hampton is served by the East Hampton Public Schools district, with East Hampton High School and East Hampton Middle School being the primary educational institutions. The town is also home to the Joseph N. Goff House Museum and Cultural Center, which offers exhibits and programs on local history and culture. Major landmarks in East Hampton include Lake Pocotopaug, one of the largest natural lakes in Connecticut, offering recreational opportunities such as boating, fishing, and swimming. The Comstock Covered Bridge, a historic wooden bridge that spans the Salmon River, is another significant landmark, reflecting the town’s historic character and scenic beauty.

Essex

Area, Population, Zip Codes, and Coordinates

• Area: 11.8 square miles
• Population: Approximately 6,733 (2020 Census)
• Zip Codes: 06426
• Latitude and Longitude: 41.3534° N, 72.3943° W

Location and History

Essex is a picturesque town located along the Connecticut River, known for its historic charm and maritime heritage. The town was first settled in the mid-17th century and was originally part of Saybrook Colony before becoming an independent town in 1852. Essex developed as a shipbuilding center during the 18th and 19th centuries, with its location along the river making it an ideal spot for maritime trade and industry. The town’s historic district features well-preserved homes and buildings from this period, giving Essex a timeless quality. Today, Essex is a popular destination for tourists, known for its scenic river views, historic architecture, and vibrant cultural scene.

Major Schools and Landmarks

Essex is served by the Regional School District 4, with Valley Regional High School and Essex Elementary School being the primary educational institutions. The town is also home to the Essex Steam Train and Riverboat, a popular tourist attraction that offers scenic rides along the Connecticut River. Major landmarks in Essex include the Connecticut River Museum, which explores the history and ecology of the Connecticut River, and the Griswold Inn, one of the oldest continuously operating inns in the country, dating back to 1776. The town’s annual Essex Groundhog Day Parade and Shad Bake are beloved community events that celebrate Essex’s unique heritage and local traditions.

Map of Cities in Middlesex County, CT