Posey County is the southernmost, southwesternmost, and westernmost county in the U.S. state of Indiana. Its southern border is formed by the Ohio River, and its western border by the Wabash River, a tributary to the Ohio. As of 2020, the population was 25,222. The county seat is Mount Vernon. Posey County is part of the Evansville, Indiana metropolitan statistical area. The Ports of Indiana-Mount Vernon, on the Ohio River, is the seventh-largest inland port complex in the nation. Mechanization of dock technology has altered the number of workers at the port, but Posey County is still the seventh-largest internal port in the United States, based on the tons of materials handled. Grain from the Midwest is among the products shipped.
Mount Vernon is a city in and the county seat of Posey County, Indiana, United States. Located in the state's far southwestern corner, within 15 miles (24 km) of both the southernmost or westernmost points, it is the westernmost city in the state. The southernmost is Rockport, located along the Ohio River about 40 miles (64 km) to the southeast.
Caborn-Welborn was a precontact and proto-historic North American culture defined by archaeologists as a Late Mississippian cultural manifestation that grew out of – or built upon the demise of – the Angel chiefdom located in present-day southern Indiana. Caborn-Welborn developed around 1400 and seems to have disappeared around 1700 CE. The Caborn-Welborn culture was the last Native American occupation of southern Indiana prior to European contact. It remains unclear which post-contact Native group, if any, are their descendants.
Sugar Ridge Township is one of eleven townships in Clay County, Indiana. As of the 2020 census, its population was 914 and it contained 438 housing units.
Bethel Township is one of ten townships in Posey County, Indiana. As of the 2020 census, its population was 245.
Black Township is one of ten townships in Posey County, Indiana. As of the 2020 census, its population was 9,032. The township is the largest both in terms of area and population in Posey County.
Harmony Township is one of ten townships in Posey County, Indiana. As of the 2020 census, its population was 1,245.
Lynn Township is one of ten townships in Posey County, Indiana. As of the 2020 census, its population was 810.
Marrs Township is one of ten townships in Posey County, Indiana. At the 2000 census, its population was 4,868. By the 2020 census it had risen to 5,385.
Robb Township is one of ten townships in Posey County, Indiana. As of the 2020 census, its population was 1,743.
Robinson Township is one of ten townships in Posey County, Indiana. As of the 2020 census, its population was 3,855.
Smith Township is one of ten townships in Posey County, Indiana, USA. At the 2020 census, its population was 1,119.
Center Township is one of ten townships in Marshall County, Indiana, United States. As of the 2020 census, its population was 15,601 and it contained 6,447 housing units.
West Township is one of ten townships in Marshall County, Indiana, United States. As of the 2020 census, its population was 3,849 and it contained 1,684 housing units.
Polk Township is one of eleven townships in Monroe County, Indiana. As of the 2010 census, its population was 360 and it contained 195 housing units. It is one of the least densely-populated townships in the state; this is largely because most of the land is occupied by Lake Monroe, the Hoosier National Forest, and seasonal homes and attractions.
Posey Township is one of nine townships in Fayette County, Indiana. As of the 2010 census, its population was 508 and it contained 202 housing units.
This is a list of the National Register of Historic Places listings in Posey County, Indiana.
The Metropolitan School District of Mt. Vernon, Indiana, also known as simply the MSD of Mt. Vernon or MSDMV, is the school corporation serving the City of Mt. Vernon and southern Posey County and is the larger of two school districts in the county.
The Ashworth Archaeological Site is a significant archaeological site in the extreme southwestern corner of the U.S. state of Indiana. Located near the confluence of the Ohio and Wabash Rivers, it lies near several similar archaeological sites. It was first examined by archaeologists in the middle of the twentieth century and found to be the site of a relatively recent Native American village, and it has been designated a historic site because of its archaeological value.
The Hovey Lake Archaeological District is a historic district composed of multiple archaeological sites in the extreme southwestern corner of the U.S. state of Indiana.
