Posey County is named for Thomas Posey, who was a soldier in the American Revolutionary War and who was a Governor of the Indiana Territory.
Surrounding County Courthouses:
N – Wabash County, Illinois and Gibson County
S – Henderson County, Kentucky and Union County, Kentucky
W – Gallatin County, Illinois and White County, Illinois
Created: September 7, 1814 
County Seat:
Blackford 1815 – 1817
Springfield 1817 – 1825
Mount Vernon 1825 – present
County Courthouse – Mount Vernon
Location: 300 Main Street / Walnut Street
Built: 1874 – 1876
Style: County Capitol / Italianate
Architect: J A Vrydagh and Levi Clark of Evansville and Terre Haute
Contractor: John McMannomy of Covington.
Description: The building faces west and is a three story red colored brick structure. The building is located on the landscaped grounds of the Courthouse Square in the center of Mount Vernon. The center section on the west side is recessed with a balcony above the first story entrance. On the north and south, the sections extend from the main building and rise to peaked roofs. On the center of the roof is a square white colored dome with gold colored roof. In the interior, a large staircase with rounded landings reaches the three main levels of the building. The stairs have turned balusters, a wide handrail, and an extra railing above the stair-rail consisting of an iron tube with turned wood supports. The courtroom, on the second story, is the most dramatic space. This two story room is elliptical in plan with a balcony level on three sides supported by cast iron columns. The ceiling is coved and has plaster coffering. All the benches and railings of the courtroom were purchased in 1893. These permanent furnishings are Eastlake in style and are built of quarter-sawn white oak. The interior of the courtroom was restored and redecorated in 1974. The building houses the County Circuit Court and the County Superior Court of the 26th Judicial District. The building was renovated in 1961.
See: The 26th Judicial District includes Gibson County, Vanderburgh County and Warrick County.
History: The county was created in 1814 and Blackford was selected as the county seat. The first court met at the home of Absaloby Duckworth in 1815 and the first courthouse was a log structure erected by Jacob Winemillerm in May 1815 at a cost of $115. In 1817, the county seat was moved to Springfield and the second courthouse was built by Frederick Rapp at a cost of $4,500. The building was later used as a school. In 1825 the county seat moved to Mount Vernon and the third courthouse was a brick structure built in 1826 by Jesse Welborn with log jail. The fourth and present courthouse was constructed in 1874 to 1876 at a cost of $74,400.
Note: The lowest point in Indiana is the Ohio River at 320 feet ( 80 meters ) which is located in the county.
County Courthouse – Mount Vernon
Photos taken 2008