Cities and Towns in Washington County, Missouri

Founded in 1813, Washington County is one of 114 counties in the state of Missouri. Historically, Washington County was formed from Sainte Genevieve County. The city of Potosi is the county seat. With FIPS code of 221, Washington County has a population of 23,502 and area of 760 square miles (1,968 km²).

List of all cities in Washington County, MO alphabetically

City/Town	Postal Code	Area Code
Belgrade, MO	63622	573
Cadet, MO	63630	573
Caledonia, MO	63631	573
Hopewell, MO	63660	573
Irondale, MO	63648	573
Mineral Point, MO	63660	573
Old Mines, MO	63630	573
Potosi, MO	63664	573
Richwoods, MO	63071	573
Springtown, MO	63660	573
Stoney Point, MO	63660	573
Tiff, MO	63674	573

Major Cities and Towns in Washington County, Missouri

Potosi

Area, Population, Zip Codes, Latitude, and Longitude

• Area: 3.09 sq mi
• Population: 2,627 (2020 Census)
• Zip Codes: 63664
• Latitude: 37.7831° N
• Longitude: 90.7897° W

Location and History

Potosi, the county seat of Washington County, is located in the southeastern part of Missouri, approximately 70 miles south of St. Louis. The city was founded in the early 1800s and named after the famed mining town of Potosí, Mexico, which was known for its silver mines. Potosi’s own early development was driven by lead mining, as the region was rich in lead deposits. In the 19th century, Potosi became a prominent mining center, attracting workers and settlers from various parts of the country. The mining industry declined in the early 20th century, but Potosi remained a regional hub for agriculture and commerce. The city served as an important stop for travelers and settlers moving through the Ozarks and has maintained a small-town charm while adapting to modern industries.

Major Schools and Landmarks

Potosi is served by the Potosi R-III School District, which includes Potosi High School and several other schools that provide quality education to the community. One of the prominent landmarks in Potosi is the Washington County Courthouse, an architecturally significant building that has stood as a symbol of the city’s history and governance. The nearby Big River provides recreational opportunities such as fishing and boating. The city also celebrates its mining history at the Old Mines Historical Society Museum, which showcases the region’s mining past. Outdoor enthusiasts enjoy the nearby Washington State Park, which offers hiking, camping, and picnicking areas, providing a natural escape for residents and visitors alike.

Irondale

Area, Population, Zip Codes, Latitude, and Longitude

• Area: 0.29 sq mi
• Population: 150 (2020 Census)
• Zip Codes: 63648
• Latitude: 37.6069° N
• Longitude: 90.5562° W

Location and History

Irondale is a small town located in the western part of Washington County, situated near the St. Francois Mountain Range. It was founded in the late 1800s, primarily as an iron ore mining settlement. The town’s early economy was closely tied to the iron industry, as local ore was smelted into iron and shipped to various parts of the country. As the demand for iron declined in the 20th century, Irondale’s population and economy diminished, but it still retains its rural, small-town character. The town’s location near the Mark Twain National Forest and its surrounding natural beauty make it a peaceful and scenic place to live. Today, Irondale remains a quiet residential community with a small but steady population, with many residents engaged in agriculture or commuting to larger cities for work.

Major Schools and Landmarks

Irondale is part of the Arcadia Valley School District, which serves several towns in the area, including Irondale. The local school provides a tight-knit educational environment. Irondale is located near the scenic Mark Twain National Forest, offering opportunities for outdoor activities such as hiking, camping, and wildlife viewing. The town’s proximity to the St. Francois Mountains also makes it a desirable location for those seeking a peaceful, rural lifestyle while still being close to regional recreational spots. Irondale also celebrates its mining history with local events and gatherings that honor the area’s past, and it is home to several small, locally owned businesses that contribute to the town’s economy and sense of community.

Belgrade

Area, Population, Zip Codes, Latitude, and Longitude

• Area: 0.23 sq mi
• Population: 128 (2020 Census)
• Zip Codes: 63622
• Latitude: 37.6295° N
• Longitude: 90.6429° W

Location and History

Belgrade is a small town located in the southern part of Washington County, nestled in the Ozarks. The town was settled in the mid-1800s, with its early development focused on agriculture and small-scale industries. Belgrade’s rural setting has allowed it to maintain a quiet and close-knit community atmosphere. Historically, the town was a stop along various trade routes in the region and saw modest growth during the 19th and early 20th centuries. While the town never developed into a major urban center, it played a role in the surrounding agricultural economy, primarily supporting farming and ranching activities. Today, Belgrade remains a quiet, rural community with a few businesses, primarily serving local residents and nearby farming operations.

Major Schools and Landmarks

Belgrade is part of the Valley R-VI School District, which serves several rural communities in the region. The district provides quality education with a focus on community involvement. One of the town’s landmarks is the nearby Big River, which offers opportunities for recreational activities such as fishing, kayaking, and boating. The region surrounding Belgrade is rich in natural beauty, and the town is a short drive from the Mark Twain National Forest, offering hiking trails and campsites. Although small, Belgrade’s location within the Ozarks makes it an attractive location for nature lovers, hunters, and those seeking an escape to the outdoors. The town also enjoys a sense of community pride and hosts local gatherings and celebrations throughout the year.

Bismarck

Area, Population, Zip Codes, Latitude, and Longitude

• Area: 0.97 sq mi
• Population: 1,357 (2020 Census)
• Zip Codes: 63624
• Latitude: 37.6174° N
• Longitude: 90.7725° W

Location and History

Bismarck is located in the central part of Washington County, Missouri, approximately 60 miles south of St. Louis. The town was established in the late 1800s and named after the German chancellor, Otto von Bismarck, reflecting the influence of German settlers in the area. Bismarck grew rapidly in the late 19th century due to the construction of the railroad, which provided better access to markets for local agricultural products and timber. Like many towns in the region, Bismarck was also known for its lead mining industry during the 19th and early 20th centuries. Although the mining industry eventually declined, Bismarck remained a small but thriving community, supported by farming, small industry, and transportation. The town’s history is closely tied to both the agricultural and industrial development of Washington County.

Major Schools and Landmarks

Bismarck is served by the Bismarck R-V School District, which includes Bismarck High School. The school district provides quality education and has a strong focus on extracurricular activities. Notable landmarks in Bismarck include the Bismarck City Park, which offers a variety of recreational amenities such as sports fields, picnic areas, and walking trails. The park is a popular spot for locals to gather and participate in community events. Bismarck is also known for its proximity to several outdoor recreational areas, including the nearby Ozark Scenic Riverways and Mark Twain National Forest. The town hosts local festivals and events that highlight its German heritage and community spirit, making it a charming place to live and visit.

Mineral Point

Area, Population, Zip Codes, Latitude, and Longitude

• Area: 0.43 sq mi
• Population: 163 (2020 Census)
• Zip Codes: 63660
• Latitude: 37.6567° N
• Longitude: 90.6665° W

Location and History

Mineral Point is a small unincorporated town located in the southern part of Washington County, situated in the foothills of the Ozarks. Mineral Point was established in the 19th century, and like much of the region, its early economy was driven by mining. The town’s name comes from the lead and zinc deposits found in the area, and it was once a thriving mining community. However, as the mining industry dwindled, the town’s economy transitioned to farming and other small industries. Today, Mineral Point is a peaceful rural community with a tight-knit population. Though small in size, it maintains a strong connection to its history and natural surroundings.

Major Schools and Landmarks

Mineral Point is part of the Potosi R-III School District, with students attending schools in Potosi. The town is near the scenic Big River, which offers outdoor activities such as fishing and kayaking. Mineral Point also benefits from its proximity to the Mark Twain National Forest, providing ample opportunities for hiking and wildlife viewing. The town’s historic mining past is remembered through local artifacts and the community’s pride in its heritage. Local events and gatherings help maintain a sense of community, and the surrounding natural beauty makes Mineral Point a desirable spot for those who appreciate rural living and outdoor recreation.