Oldham County is named for William Oldham, who was a colonel in the American Revolution and who lived from 1753 to 1791.
Surrounding County Courthouses:
N – Clark County, Indiana and Trimble County
E – Henry County
S – Shelby County and Jefferson County
W – Clark County, Indiana
Created: February 1, 1824 
County Seat:
Westport 1824 – 1838
La Grange 1838 – present
County Courthouse – La Grange
Location: 100 West Main Street / North 1st Avenue
Built: 1874 – 1875
Style: Renaissance Revival
Architect: Monroe Q Wilson of Louisville
Contractor: Moses Swim ( superintendent of the construction project ).
Description: The building faces south and is a two story red colored brick structure. The building is located on landscaped grounds in the center of La Grange.The building has a rectangular configuration and is located on spacious landscaped grounds of Courthouse Square. The south front has a small portico supported by two white colored columns and with a balcony above. The windows are arched and on the second story, there are white colored headers above the windows. A white colored cornice is along the roof line. In the center of the hipped roof is a white colored octagonal cupola with white colored dome which has a crown on the top. The courtroom is located on the second story. In 1890 a stone jail was added on the west and in 1920 an office wing was added on the east side. A large addition has been added to the north side in 1992. The architect was Scott/Klausing & Company. Inc. and the contractor was Mathys Builders, Inc. On the west side is the County Jail constructed in 1989. The architect was AJR/Voinovich and the contractor was R & W Construction Company, Inc.
See: National Register of Historic Places – La Grange Historic District
History: The county was created in 1824 and the first county seat was at Westport along the Ohio River. The first courthouse was a wood structure built in 1825. The building is still standing as the Westport Methodist Church. In 1838, the county seat was moved to La Grange and the second courthouse was built in 1834 before the official change of the county seat. The building burned in 1873. The third and the present courthouse was constructed in 1874 at a cost of $15,780. Richard Waters, of Hermitage Farm served on the building committee and local labor completed the construction.
County Fiscal Court – La Grange
Location: 100 West Jefferson Street / North 1st Avenue
Built: 1973 – 1974
Style: Modern Colonial Revival
Architect: Unknown
Contractor: Unknown
Description: The building faces south and is a two story light red colored brick and concrete structure. The building is located on landscaped grounds in the center of La Grange to the north of the courthouse. The south front has a large portico with four columns rising to a pediment at the roof line. The recessed entrance is framed with white colored wood. The roof is hipped. An addition was constructed on the north side in 2001 to 2003. The architect was Nolan & Nolan and the contractor was Morel Construction Company, Inc.
See: The 12th Judicial Circuit includes Henry County, Oldham County and Trimble County.
County Courthouse – La Grange
County Jail – La Grange
Fiscal Court Building – La Grange
Photos taken 2007 and 2018