Cities and Towns in Union County, Ohio
Founded in Apr 1, 1820, Union County is one of 88 counties in the state of Ohio. Historically, Union County was formed from Delaware, Franklin, Logan, and Madison Counties. The city of Marysville is the county seat. With FIPS code of 159, Union County has a population of 64,971 and area of 436.65 square miles (1,131 km²).
List of all cities in Union County, OH alphabetically
| City/Town | Postal Code | Area Code |
| Broadway, OH | 43007 | 937 |
| Irwin, OH | 43029 | 937 |
| Magnetic Springs, OH | 43036 | 937 |
| Marysville, OH | 43040 | 937 |
| 43041 | 937 | |
| Milford Center, OH | 43045 | 937 |
| O M Scott Co, OH | 43041 | 937 |
| Raymond, OH | 43067 | 937 |
| Richwood, OH | 43344 | 740 |
| Unionville Center, OH | 43077 | 740 |
Major Cities and Towns in Union County, Ohio
Union County, located in central Ohio, is a rapidly growing region known for its mix of rural charm and modern development. The county is home to a variety of cities and towns that offer historical significance, thriving communities, and recreational opportunities. Below is an overview of the major cities and towns in Union County.
1. Marysville
Location and History
- Area: 16.5 square miles
- Population: 25,000 (approx.)
- Zip Code: 43040
- Latitude: 40.2364° N
- Longitude: 83.3672° W
Marysville, the county seat of Union County, is located in the center of the county. Founded in 1816 and named after Mary, the daughter of founder Samuel W. Hueston, Marysville grew as an agricultural and trade hub in central Ohio. Over the years, the city expanded with the advent of industry, notably the establishment of Honda of America Manufacturing, which has played a significant role in Marysville’s economic development. Today, the city is known for its balance of historical charm, modern industry, and community-focused living.
Schools and Landmarks
- Major Schools: Marysville High School, Marysville Early College High School
- Landmarks: Union County Courthouse, Aldersgate Park, Honda Heritage Center
Marysville is served by Marysville Exempted Village Schools, with Marysville High School and the innovative Early College High School providing diverse educational opportunities. The Union County Courthouse, a stunning historic building, is a centerpiece of downtown Marysville. Aldersgate Park offers recreational trails, sports fields, and picnic areas, while the Honda Heritage Center showcases the city’s industrial contributions. Marysville’s blend of history, industry, and modern amenities makes it the heart of Union County.
2. Plain City
Location and History
- Area: 3.3 square miles
- Population: 5,000 (approx.)
- Zip Code: 43064
- Latitude: 40.1070° N
- Longitude: 83.2677° W
Plain City, located in the southern part of Union County, was established in 1814 and named for its flat terrain. The village developed as a small agricultural community, with its location along the Big Darby Creek contributing to its early success. Over time, Plain City grew into a hub for commerce and community life while maintaining its rural roots. Today, the village is known for its vibrant downtown, historic architecture, and access to natural areas.
Schools and Landmarks
- Major Schools: Jonathan Alder High School, Plain City Elementary School
- Landmarks: Big Darby Creek Scenic River, Plain City Clock Tower, Pastime Park
Plain City is served by the Jonathan Alder Local School District, with Jonathan Alder High School providing education for the region. The Big Darby Creek Scenic River, a state-designated waterway, offers opportunities for fishing, kayaking, and nature observation. The Plain City Clock Tower, located in the heart of downtown, is a beloved local landmark. Pastime Park provides recreational facilities, including a pool, trails, and campgrounds, making it a popular spot for residents. Plain City’s mix of history, natural beauty, and community spirit makes it a charming part of Union County.
3. Richwood
Location and History
- Area: 1.3 square miles
- Population: 2,400 (approx.)
- Zip Code: 43344
- Latitude: 40.4262° N
- Longitude: 83.2977° W
Richwood, located in the northern part of Union County, was founded in 1832 and grew as an agricultural and commercial center. The village developed around local farming and milling industries, with its location providing easy access to nearby markets. Over the years, Richwood has preserved its small-town charm, with a focus on local businesses, schools, and community events. The village remains a vital part of Union County’s rural landscape.
Schools and Landmarks
- Major Schools: North Union High School, Richwood Elementary School
- Landmarks: Richwood Lake Park, Veterans Memorial Park, Village Historic Buildings
Richwood is part of the North Union Local School District, with North Union High School serving the educational needs of the community. Richwood Lake Park is a focal point for outdoor recreation, offering fishing, walking trails, and picnic areas. Veterans Memorial Park honors local military service members and provides a serene gathering space. The village’s historic downtown features buildings that reflect its 19th-century origins, adding to Richwood’s charm and character.
4. Milford Center
Location and History
- Area: 0.2 square miles
- Population: 800 (approx.)
- Zip Code: 43045
- Latitude: 40.1734° N
- Longitude: 83.4324° W
Milford Center, located in the southwestern part of Union County, was established in the early 19th century as a small farming village. The village grew due to its location along key transportation routes and its proximity to the Darby Plains. Milford Center has maintained its rural atmosphere while serving as a close-knit residential community. Its historical significance and quiet charm make it a distinctive part of the county.
Schools and Landmarks
- Major Schools: Fairbanks High School, Milford Center Elementary School
- Landmarks: Unionville Center Historic District, Darby Creek Metro Park, Local Churches
Milford Center is served by the Fairbanks Local School District, with students attending Fairbanks High School for secondary education. The nearby Darby Creek Metro Park offers scenic trails and opportunities for wildlife observation. The village’s historic churches and early 19th-century buildings add to its historical character, providing a glimpse into its past. Milford Center’s peaceful environment and community pride make it a welcoming village in Union County.
5. Magnetic Springs
Location and History
- Area: 0.3 square miles
- Population: 300 (approx.)
- Zip Code: 43036
- Latitude: 40.3487° N
- Longitude: 83.2628° W
Magnetic Springs, located in the northern part of Union County, was established in the late 19th century and named after its natural mineral springs, which were believed to have therapeutic properties. The village became a popular destination for health tourism, with visitors flocking to its spas and bathhouses. While the springs are no longer a primary attraction, Magnetic Springs remains a small residential community with a unique history.
Schools and Landmarks
- Major Schools: Students attend schools in Richwood or Marysville
- Landmarks: Former Spa Sites, Magnetic Springs Park, Local Historic Residences
Magnetic Springs students typically attend schools in nearby Richwood or Marysville. The village’s former spa sites and historic residences reflect its past as a health resort. Magnetic Springs Park offers green spaces and recreational opportunities for residents. Despite its small size, Magnetic Springs preserves its distinct historical legacy and continues to be a charming village in Union County.