Posey County was created on November 1, 1814 and was formed from Warrick County. The County was named for Thomas Posey, a governor of Indiana Territory.
The County Seat is Mount Vernon. Mt. Vernon wasn't always the County Seat. The first location was at Blackford, in the northeastern corner of Marrs Township, the town being named after Judge Isaac Blackford, a famous lawyer in Indiana for more than forty years. In 1817, it was removed to Springfield, near the town of Harmonie, where Frederick Rapp and his colony of Rappites lived. The legislative act of February 12, 1825 moved the County Seat to Mt. Vernon. First settled in 1803 by Andrew McFadin, the town site long ago known as McFadin's Bluff. By 1849 Mt. Vernon contained substantial buildings for the Courthouse and public offices, two good hotels and about 200 houses with 1,000 inhabitants.
Counties adjacent to Posey County are Gibson County (north), Vanderburgh County (east), Henderson County, Kentucky, Union County, Kentucky (south), Gallatin County, Illinois (southwest), White County, Illinois (west).
Posey County is divided into 10 Civil Towhships as follows: Bethel, Black, Center, Harmony, Lynn, Marrs, Point, Robb, Robinson and Smith.
Cities, Towns and Communities include Barrett, Bufkin, Caborn, Cynthiana, Erwin, Farmersville, Grafton, Griffin, Hepburn, Heusler, Hovey, Lamott, Mt. Vernon, New Baltimore, New Harmony, Oliver, Phillip Station, Poseyville, Prairie, Rapture, Rogers, Saint Phillip, Solitude, Springfield, Stewartsville, Upton, Wadesville, Wellborn, and West Franklin.

NOTE: The date listed for each category of record is the earliest record known to exist in that county. It does not indicate that there are numerous records for that year and certainly does not indicate that all such events that year were actually registered. See also the Posey County Courthouse History
Posey County Clerk has Marriage Records from 1814 , Probate Records from 1815 and Court Records from 1815 and is located at 300 W. Main Street, PO BOX 606 (mailing address), Mount Vernon, IN 47620; Pho: (812) 838-1306, Fax: (812) 838-1339
The Clerk of the Circuit Court is a ministerial officer who is the custodian of the Clerk's record and seal, issues process, accepts filings of commencement of actions in litigation, enters judgments and orders of the court, receives money in his official capacity, makes certified copies of record, issues many miscellaneous licenses, and keeps a record of all wills and matters of trust in probate proceedings.
Posey County Recorder has Land Records from 1812 and is located at 300 W. Main Street, PO BOX 9 (mailing address), Mount Vernon, IN 47620; Pho: (812) 838-1314.
The county recorder's function is to maintain permanent public records involving a wide variety of instruments. These documents detail transactions involving real estate, mining, personal property, mortgages, liens, leases, subdivision plats, military discharges, personal bonds, etc. Generally, all of these instruments are recorded either for giving legal public notice of their existence or for safekeeping and future reference. The recorder maintains and preserves all legal documents affecting title to real property.
Records of county taxes were kept as early at 1842, although most were discarded. Remaining ones would be at the county courthouse. National Archives-Great Lakes Region has records of the Internal Revenue Service for Indiana for 1867 to 1873. These are tax assessment records, arranged by district and then chronologically.
Posey County Health Department has Birth / Death Records from 1882 and is located at Coliseum Building, 126 East Third Street, Mount Vernon, IN 47620; (812) 838-1328
Below is a list of online resources for Posey County Court Records. Email us with websites containing Posey County Court Records by clicking the link below:

Indiana State Department of Health Vital Records office is located at 6 West Washington Street, Indianapolis, Indiana 46204. The office is open for walk-in requests from 9:00 a.m. to 2:00 p.m., E.S.T., Monday through Friday (excluding official State Holidays). They have the following records:
Below is a list of online resources for Posey County Vital Records. Email us with websites containing Posey County Vital Records by clicking the link below:

Few, if any, records reveal as many details about individuals and families as do government census records. Substitute records can be used when the official census is unavailable
Countywide Records: Federal Population Schedules that exist for Posey County, Indiana are 1820, 1830, 1840, 1850, 1860, 1870, 1880, 1900, 1910, 1910, 1920 and 1940. Other Federal Schedules to look at when researching your Family Tree in Posey County, Indiana are Industry and Agriculture Schedules availible for the years 1850, 1860, 1870 and 1880. The Mortality Schedules for the years 1850, 1860, 1870 and 1880. There are free downloadable and printable Census forms to help with your research. These include U.S. Census Extraction Forms and U.K. Census Extraction Forms.
Below is a list of online resources for Posey County Census Records. Email us with websites containing Posey County Census Records by clicking the link below:
Below is a list of online resources for Posey County Maps. Email us with websites containing Posey County Maps by clicking the link below:
Below is a list of online resources for Posey County Military Records. Email us with websites containing Posey County Military Records by clicking the link below:
Below is a list of online resources for Posey County Genealogical Addresses. Email us with websites containing Posey County Genealogical Addresses by clicking the link below:
There are many churches and cemeteries in Posey County. Some transcriptions are online. A great site is the Posey County Tombstone Transcription Project.
Below is a list of online resources for Posey County Cemetery & Church Records. Email us with websites containing Posey County Cemetery & Church Records by clicking the link below:
Below is a list of online resources for Posey County Family Trees, web forums and other family type information. Email us with websites containing Posey County Family Trees, web forums and other family type information by clicking the link below: