Summary for Fort Jefferson

About Fort Jefferson (Click for our profile page)

Located in: Darke County (see below)

Typical Abbreviation: Ft. Jefferson

Time Zone: Fort Jefferson lies in the Eastern Time Zone (EST/EDT)

Elevation: 1,080 feet [329.18 m] above sea level<1>

Websites for Fort Jefferson

GPS Coordinates (Latitude/Longitude)<2>

For the purpose of mapping and calculating distances, we have chosen the following reference point for Fort Jefferson:

Lat: 40.026200° (or 40°1'34" N)

Lon: -84.655200° (or -84°39'18" W)

USGS Topo Map: Greenville West<3>

Federal GNIS/FIPS Codes for Fort Jefferson

GNIS ID: 1048749

FIPS State / Place Code: 39 / 27804

(For more about Federal Codes, see our Misc Page for Fort Jefferson)

The community of Greenville is the County Seat for Darke County.

From the 2010 US Census (For more detail, see our Census Page for Darke)

Population

Total Area:<5> 599 sq. miles [1,553.4 km²]

Housing Units: <6> 22,730

Federal GNIS/FIPS Codes for Darke

GNIS ID: 1074031

FIPS State / County Code: 39 / 037

(For more about Federal Codes, see our Misc Page for Fort Jefferson)

About Ohio

From the US Census

Population

Websites for State of Ohio

Official Website: https://ohio.gov/

Federal GNIS/FIPS Codes for State of Ohio

GNIS ID: 1085497

FIPS State: 39

(For more about Federal Codes, see our Misc Page for Fort Jefferson)

Off-the-Road Links ...

Unfortunately, we don't know of a website for Fort Jefferson. If you can help, please contact us through our Feedback Page.

The official website for Darke County: www.co.darke.oh.us/

The official website for State of Ohio: https://ohio.gov/

<1>	The elevation is an estimate for the area around Fort Jefferson - it will be higher in some places and lower in others.
<2>	Longitude & latitude values may not be the geographic center of Fort Jefferson, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<3>	Name of the USGS 7.5 Minute topographic map which includes Fort Jefferson.
<4>	Every year, the US Census Bureau creates a population estimate for the preceeding year. Keep in mind that this value is an estimate and not an actual count. The most recent Census estimate is for the year 2019.
<5>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Fort Jefferson. The value given by the Census Bureau reflects their statistical (or sampling) requirements. For example, if there is a cluster of people living just outside of the community's official boundary, the Census-defined area might be expanded to include that group.
<6>	A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).