Explore Posey County, Indiana with this interactive street and satellite map. Browse all 10 cities and towns in Posey County below.
| County | Posey |
| State | Indiana (IN) |
| County Seat | Mount Vernon |
| Country | United States of America |
| Latitude | 38.103882 |
| Longitude | -87.822948 |
| Cities & Towns | 10 |
| Area Codes | 574, 812 |
Posey County, Indiana, unfolds along the broad, slow curve of the Ohio River, its southern edge a watery boundary against Kentucky. To the north and east, the land shifts subtly, transitioning from the river's alluvial plains into a more varied terrain. Here, a mosaic of farmland and woodlot defines the landscape, broken by the occasional stand of mature trees that hold their secrets close. The Wabash River, a more restless artery, bisects the county, its confluence with the Ohio a point of considerable natural significance. Neighboring counties share this character, a shared inheritance of fertile soil and a climate that can be both generous and severe, shaping the lives and the very disposition of those who call this corner of Hoosierdom home. The light here, especially in late afternoon, often possesses a soft, diffused quality, lending a contemplative air to the broad fields and the quiet roads that thread through them.
The settlement of Posey County began in earnest in the early 19th century, with pioneers drawn by the promise of fertile land and access to the waterways that served as highways for commerce and travel. Established in 1814, it was named for Thomas Posey, a Revolutionary War veteran and Indiana's second lieutenant governor. Early life was a constant negotiation with the environment, a struggle for sustenance and security against the vagaries of weather and the wild. Vincennes, an older settlement across the Wabash, exerted an early influence, but the county seat found its permanent home at what became known as Poseyville, a name that itself speaks of the land and its first inhabitants. The courthouse, a solid brick structure that has weathered generations, stands as a quiet sentinel in the town center, a constant, dependable presence in a world that often feels anything but.
The economy of Posey County remains largely rooted in agriculture, with broad fields yielding corn, soybeans, and other staples. Yet, a quiet industrial hum can be detected in some of the larger towns, a testament to the enduring practicality of its people. The character of the county is one of quiet resilience, a deep-seated connection to the land and a measured pace of life. Basketball courts in the small towns are often as central to community life as any church or market, a place where rivalries are forged and friendships are cemented under the glow of gymnasium lights. Beyond the fields and the small, purposeful towns, places like Harmonie State Park offer a glimpse into the region's natural beauty, a place where the Ohio River's ancient flow continues to shape the land, a constant, quiet reminder of time's passage.
This page provides an interactive map of Posey County, Indiana alongside links to detailed street maps for 10 cities and towns. The county seat is Mount Vernon. Each city and town map page includes live weather, local news and precise GPS coordinates.
Location data is sourced from the USGS GNIS database and verified by coordinates, not name matching alone.
| Page generated | June 2026 |
| Location data | USGS GNIS database; coordinates matched to 2020 US Census records |