Dover Township, Union County, Ohio

New Dover is an unincorporated community in Dover Township, Union County, Ohio, United States. It is located at 40°14′48″N 83°18′17″W, along U.S. Route 36, about three miles east of Marysville.New Dover was originally called Dover, and under the latter name was laid out and platted in 1854. The New Dover Post Office was established on February 5, 1856. As of 1877, the village did a considerable amount of manufacturing business. It contained one church, a school-house, one harness shop, one blacksmith shop, and several other stores. The post office was discontinued on April 30, 1935. The mail service is now sent through the Marysville branch.

Millcreek Township is one of the fourteen townships of Union County, Ohio, United States. The 2020 census found 1,332 people in the township.

Watkins is an unincorporated community in Mill Creek Township, Union County, Ohio, United States. It is located at 40°12′45″N 83°14′49″W, along Watkins Road, between U.S. Route 33 and U.S. Route 42, about five miles east of Marysville.

Dipple is an unincorporated community in Paris Township, Union County, Ohio, United States. It is located about 2 miles (3.2 km) southeast of Marysville along U.S. Route 33 where Scottslawn Road intersects with the railroad tracks, at 40°12′08″N 83°19′01″W. The location of the original community is now wholly located on the Scotts Miracle-Gro Company property.

The Ellis Mounds are a complex of Native American mounds near Marysville in Union County, Ohio, United States. These three mounds form an east-west line on a small ridgeline in a farm field. Believed to have been built by Hopewellian peoples, the mounds are important because they may reveal information about daily life in the Hopewell culture. Archaeologists who study the Hopewell have generally concentrated on their largest ceremonial centers: as a result, while the mortuary customs of the Hopewell are well known, other aspects of their culture are little understood. For this reason, a site such as Ellis that bears the potential of yielding information about such aspects is valuable indeed, especially because its date has not yet been established: Ellis may have been built as early as 300 BC and as late as AD 600. Furthermore, the location of the mounds outside of the Hopewellian heartland farther south may demonstrate the spread of Hopewell influence, since excavations in numerous locations have demonstrated the necessity of assembling a complex society with many workers in order to construct the ceremonial mounds for which the Hopewell are well known.In 1974, the archaeological significance of the Ellis Mounds was recognized when they were listed on the National Register of Historic Places. They are one of seven National Register sites in Union County and the only one in the county's northern regions: three of the other six are within Marysville's city limits; the other three are south and west of Marysville.

Woodview Park is an unincorporated community in Paris Township, Union County, Ohio, United States. It is located at 40°15′44″N 83°21′26″W, at the intersection of Ohio State Route 4 and Country Home Road, just north of Marysville.

Ostrander ( OH-stran-dər) is a village in Delaware County, Ohio, United States. The population was 1,094 at the 2020 census.

Union County Airport (ICAO: KMRT, FAA LID: MRT) is a public use airport in Union County, Ohio, United States. It is owned by the Union County Airport Authority and located one nautical mile (2 km) southeast of the central business district of Marysville, Ohio. This airport is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation facility.Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned MRT by the FAA, but has no designation from the IATA (which assigned MRT to Moroak, Northern Territory, Australia).

Marysville is a city in and the county seat of Union County, Ohio, United States, approximately 27 miles (43 km) northwest of Columbus. The population was 25,571 at the 2020 census. It is part of the Columbus metropolitan area. Marysville's longtime slogan is "Where the Grass is Greener". In December 2008, the city was designated as a "Preserve America Community" by First Lady Laura Bush.

Fleetwood Park is an unincorporated community in Paris Township, Union County, Ohio, United States. It is located at 40°14′59″N 83°22′13″W, surrounded by current Marysville.

Adena Pointe is an unincorporated community in Paris Township, Union County, Ohio, United States. It is located at 40°13′06″N 83°21′40″W, just South of Marysville along Weaver Road.

Paris Township is one of the fourteen townships of Union County, Ohio, United States. The 2020 census found 27,167 people in the township.