Cities and Towns in Saint Clair County, Michigan

Founded in 1820, St. Clair County is one of 83 counties in the state of Michigan. Historically, St. Clair County was formed from part of Macomb County. The city of Port Huron is the county seat. With FIPS code of 147, St. Clair County has a population of 160,053 and area of 837 square miles (2,168 km²).

List of all cities in Saint Clair County, MI alphabetically

City/Town	Postal Code	Area Code
Algonac, MI	48001	810
Allenton, MI	48002	810
Anchorville, MI	48004	810
Avoca, MI	48006	810
Berlin, MI	48002	810
Berlin Township, MI	48002	810
Berville, MI	48002	810
Brockway, MI	48097	810
Burtchville, MI	48059	810
Capac, MI	48014	810
Casco, MI	48064	810
China, MI	48054	810
Clay, MI	48001	810
Clyde, MI	48049	810
Columbus, MI	48063	810
Cottrellville, MI	48039	810
East China, MI	48054	810
Emmett, MI	48022	810
Fair Haven, MI	48023	810
Fargo, MI	48006	810
Fort Gratiot, MI	48059	810
Goodells, MI	48027	810
Greenwood, MI	48006	810
Harsens Island, MI	48028	810
Ira, MI	48023	810
Jeddo, MI	48032	810
Kenockee, MI	48006	810
Kimball, MI	48074	810
Lakeport, MI	48059	810
Lynn, MI	48097	810
Marine City, MI	48039	810
Marysville, MI	48040	810
Memphis, MI	48041	810
Mussey, MI	48014	810
North Lakeport, MI	48059	810
North Street, MI	48049	810
Pearl Beach, MI	48001	810
Port Huron, MI	48060	810
	48061	810
Riley, MI	48041	810
Ruby, MI	48049	810
Russell Island, MI	48001	810
Saint Clair, MI	48079	810
Smiths Creek, MI	48074	810
Wales, MI	48027	810
Worth Township, MI	48032	810
Yale, MI	48097	810

Major Cities and Towns in Saint Clair County, Michigan

Port Huron

Area, Population, and Zip Codes

• Area: 12.26 square miles
• Population: 28,983 (2020 Census)
• Zip Codes: 48060, 48061
• Latitude: 42.9709° N
• Longitude: 82.4249° W

City Location and History

Port Huron is the county seat of Saint Clair County and sits at the southern end of Lake Huron, where the lake meets the St. Clair River, directly across from Sarnia, Ontario, Canada. The city was first settled in the early 19th century and became a vital shipping and manufacturing hub due to its strategic location at the mouth of the river. Incorporated in 1857, Port Huron grew rapidly as the lumber, shipbuilding, and railroad industries took root, boosted by its proximity to the Great Lakes and its cross-border trading connections. The city also holds a significant place in American maritime history, being home to the iconic Thomas Edison Depot Museum, which honors the inventor’s time in the city as a young telegraph operator.

Major Schools and Landmarks

Port Huron Area Schools is the primary school district, with Port Huron High School and Port Huron Northern High School serving the area. Major landmarks include the Blue Water Bridge, connecting the U.S. and Canada, which is one of the city’s most recognizable structures. The historic Fort Gratiot Lighthouse, Michigan’s oldest operating lighthouse, is another key attraction, along with the Huron Lightship Museum. Palmer Park and Lakeside Beach offer recreational opportunities on the waterfront. The annual Port Huron to Mackinac Island Sailboat Race is a renowned summer event that attracts sailors and visitors from all over.

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St. Clair

Area, Population, and Zip Codes

• Area: 3.72 square miles
• Population: 5,485 (2020 Census)
• Zip Codes: 48079
• Latitude: 42.8194° N
• Longitude: 82.4864° W

City Location and History

St. Clair is located along the western bank of the St. Clair River, about 12 miles south of Port Huron. The city was first established in the early 19th century and quickly developed as a key port and shipbuilding center. St. Clair was named after the river it borders, which was itself named after Saint Clare of Assisi by French explorers. The area was known for its salt springs and lumber mills, both of which played an integral role in the city’s economic development. In the late 19th and early 20th centuries, the city became a summer resort destination for Detroit’s wealthy elite, adding to its cultural and economic diversity.

Major Schools and Landmarks

St. Clair is served by East China School District, with St. Clair High School being the main secondary education institution. One of the city’s most prominent landmarks is Palmer Park, which runs along the scenic St. Clair River and is home to the longest freshwater boardwalk in the world. The St. Clair Inn, built in 1926, is another historic landmark, recently restored and reopened as a boutique hotel. The city hosts the annual St. Clair Riverfest, celebrating local heritage and offering water-based activities, parades, and fireworks. The riverfront, with its boating and fishing opportunities, remains a central feature of life in St. Clair.

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Marine City

Area, Population, and Zip Codes

• Area: 2.21 square miles
• Population: 4,028 (2020 Census)
• Zip Codes: 48039
• Latitude: 42.7186° N
• Longitude: 82.4944° W

City Location and History

Marine City is located on the western shore of the St. Clair River, about 12 miles south of St. Clair and 30 miles northeast of Detroit. The city’s early history is deeply tied to shipbuilding and maritime trade, as its location along the river made it an ideal place for shipyards. In the 19th century, Marine City was known for building some of the largest wooden ships of the era. It quickly developed into a bustling port, with lumber, salt, and agricultural products being shipped through its docks. Today, Marine City retains much of its historical charm with preserved Victorian-era architecture and a deep connection to its maritime past.

Major Schools and Landmarks

Marine City is served by the East China School District, with Marine City High School being the primary educational institution. The city’s most notable landmark is the Marine City Beach and Boardwalk, which provides stunning views of the St. Clair River and offers a place for swimming and relaxation. The Mariner Theater is another key landmark, offering live performances and classic movie screenings. Marine City’s downtown area, with its boutique shops and historic buildings, is a popular spot for visitors. The city also celebrates its heritage through events like the Maritime Days Festival, which includes boat parades, historical reenactments, and fireworks.

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Algonac

Area, Population, and Zip Codes

• Area: 1.46 square miles
• Population: 4,098 (2020 Census)
• Zip Codes: 48001
• Latitude: 42.6181° N
• Longitude: 82.5319° W

City Location and History

Algonac is located at the southernmost point of Saint Clair County, along the St. Clair River and the mouth of the St. Clair Flats. Known as the “Venice of Michigan” for its many waterways and proximity to the largest freshwater delta in the world, Algonac has a rich history dating back to its founding in 1836. The city became known for its boatbuilding industry, particularly the Gar Wood Boats, which were world-renowned for their speed and craftsmanship. In the early 20th century, Algonac was at the forefront of marine innovation, particularly in the design of racing boats, contributing to its reputation as a hub for boating enthusiasts.

Major Schools and Landmarks

Algonac Community Schools serve the area, with Algonac High School being the primary institution. One of the city’s most famous landmarks is the Algonac Clay Historical Museum, which offers insight into the area’s boatbuilding past. The Algonac State Park, situated along the river, offers camping, hiking, and birdwatching opportunities, making it a favorite destination for outdoor enthusiasts. The annual Pickerel Tournament and Festival is a long-standing tradition in Algonac, celebrating the region’s fishing heritage with competitions, fireworks, and family-friendly events. The St. Clair Flats and nearby Harsens Island also provide unique ecosystems and recreational opportunities.

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Marysville

Area, Population, and Zip Codes

• Area: 7.31 square miles
• Population: 9,959 (2020 Census)
• Zip Codes: 48040
• Latitude: 42.9128° N
• Longitude: 82.4859° W

City Location and History

Marysville is located along the St. Clair River, just south of Port Huron. The city was founded in the mid-19th century and grew rapidly due to its prime location along the river, which facilitated transportation and trade. In the early 20th century, Marysville became an industrial hub, home to the original site of Chrysler’s outboard motor plant. The city is known for its blue-collar roots, with manufacturing playing a significant role in its development. Today, Marysville maintains a balance between industrial growth and residential community life, with a focus on recreation and riverfront development.

Major Schools and Landmarks

Marysville Public Schools serves the area, with Marysville High School as the main institution. One of the city’s major landmarks is the Marysville Golf Course, located along the river and offering scenic views while providing recreation for residents and visitors. The Riverwalk Trail, which stretches along the St. Clair River, is a popular spot for walking, biking, and picnicking. The Wills Sainte Claire Auto Museum, which highlights the history of local automotive innovation, is another key attraction. The Marysville City Park, with its playgrounds, sports fields, and waterfront access, serves as a central gathering place for the community.

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Capac

Area, Population, and Zip Codes

• Area: 1.59 square miles
• Population: 1,890 (2020 Census)
• Zip Codes: 48014
• Latitude: 43.0119° N
• Longitude: 82.9283° W

City Location and History

Capac is located in the western part of Saint Clair County, near the border with Lapeer County. The village was founded in 1857 and quickly grew as a stop along the Grand Trunk Western Railroad. Capac was named after an Inca emperor, reflecting a fascination with Native American history and culture at the time. Agriculture has long been a key part of Capac’s economy, with local farms producing corn, soybeans, and dairy products. The village retains a small-town feel, with a strong sense of community and rural charm that continues to attract residents seeking a quiet lifestyle.

Major Schools and Landmarks

Capac Community Schools serves the village, with Capac High School as the primary institution. The Capac Historical Society Museum is one of the village’s most notable landmarks, showcasing artifacts and exhibits that detail the area’s history, including its agricultural and railroad heritage. The village also hosts an annual Capac Days Festival, featuring parades, local vendors, and family entertainment. The surrounding rural areas provide opportunities for outdoor recreation, including hunting, fishing, and hiking. The village’s proximity to both I-69 and M-53 makes it a convenient location for those commuting to larger cities while enjoying the benefits of a rural community.