Mercer County

US States / M / Missouri / Mercer County

Mercer County is named for John F Mercer, who was an American lawyer, painter and politician from Virginia and Maryland.


Created:  February 14, 1845

County Seat:

Princeton  1845 – present


County Courthouse –  Princeton  


Location:  802 East Main Street / Broadway Street

Built:  1911 – 1913

Style:  Classical Revival

Architect:  R W Van Trump and Rae Sanneman of Kansas City

Contractor:  J E Anderson of Kansas City.


Description:  The building faces north and is a two story gray colored stone structure. The rectangular building is 65 feet by 90 feet. The north front has a projecting portico supported by four high columns with a pediment above at the roof line. There is stone trim around the main entrance. A projecting cornice runs below the flat roof line.


Note:  The first courthouse was built in 1847. The second courthouse was built in 1858 by H B Nesbitt at a cost of $8,000. The present courthouse was constructed at a cost of $76,000.



N – Decatur County, Iowa and Wayne County, Iowa

E – Putnam County and Sullivan County

S – Grundy County

W – Harrison County

















Photos taken 2009