Blackford County is located in the east central portion of the U.S. state of Indiana. The county is named for Judge Isaac Blackford, who was the first speaker of the Indiana General Assembly and a long-time chief justice of the Indiana Supreme Court. Created in 1838, Blackford County is divided into four townships, and its county seat is Hartford City. Two incorporated cities and one incorporated town are located within the county. The county is also the site of numerous unincorporated communities and ghost towns. Occupying only 165.58 square miles (428.9 km2), Blackford County is the fourth smallest county in Indiana. As of the 2020 census, the county's population was 12,112. Based on population, the county is the 8th smallest county of the 92 in Indiana. Although no interstate highways are located in Blackford County, three Indiana state roads cross the county, and an additional state road is located along the county's southeast border. The county has two railroad lines. A north–south route crosses the county, and intersects with a second railroad line that connects Hartford City with communities to the west.
Montpelier is a city in Harrison Township, Blackford County, in the U.S. state of Indiana. This small rural community, the county's first to be platted, was established by settlers from Vermont, and is named after Vermont's capital city of Montpelier.
Shamrock Lakes is a town in Licking Township, Blackford County, Indiana, United States. It was incorporated on May 21, 1973—and was the first community in Indiana to do so in 50 years. The small town consists of a group of six lakes that were created between 1960 and 1965, and the first lake was originally intended to be a water supply for a farmer's cattle. The community was listed on the front page of USA Today as one of only five places in the United States named after Ireland's clover emblem, the shamrock.
Harrison Township is one of four townships in Blackford County, Indiana. As of the 2020 census, its population was 2,353 and it contained 1,155 housing units. The township was named after William Henry Harrison, hero of the Battle of Tippecanoe, former governor of the Indiana Territory, and ninth President of the United States.
Jackson Township is one of four townships in Blackford County, Indiana. As of the 2020 census, its population was 1,233 and it contained 554 housing units. The township was named after Andrew Jackson, the Brevet Major General of the Battle of New Orleans and the seventh President of the United States.
Licking Township is one of four townships in Blackford County, Indiana. As of the 2020 census, its population was 7,723 and it contained 3,784 housing units. The township was named after Lick Creek and a salt lick in the area. The first settlers in what became Blackford County arrived in the Lick Creek area in 1831.
Niles Township is one of twelve townships in Delaware County, Indiana. According to the 2010 census, its population was 1,360 and it contained 566 housing units.
Union Township is one of twelve townships in Delaware County, Indiana. According to the 2010 census, its population was 2,838 and it contained 1,260 housing units.
Jefferson Township is one of thirteen townships in Grant County, Indiana, United States. As of the 2010 census, its population was 5,839 and it contained 1,758 housing units.
Monroe Township is one of thirteen townships in Grant County, Indiana, United States. As of the 2010 census, its population was 1,677 and it contained 669 housing units.
Van Buren Township is one of thirteen townships in Grant County, Indiana, United States. As of the 2020 census, its population was 1,836, and it contained 785 housing units.
Clear Creek Township is one of twelve townships in Huntington County, Indiana, United States. As of the 2020 census, its population was 1,984 and it contained 750 housing units.
Bearcreek Township is one of twelve townships in Jay County, Indiana, United States. As of the 2020 census, its population was 1,587 and it contained 465 housing units.
Greene Township is one of twelve townships in Jay County, Indiana, United States. As of the 2020 census, its population was 926 and it contained 383 housing units.
Jackson Township is one of twelve townships in Jay County, Indiana, United States. As of the 2020 census, its population was 991 and it contained 316 housing units.
Knox Township is one of twelve townships in Jay County, Indiana, United States. As of the 2020 census, its population was 477 and it contained 194 housing units.
Penn Township is one of twelve townships in Jay County, Indiana, United States. As of the 2020 census, its population was 1,133 and it contained 530 housing units.
Richland Township is one of twelve townships in Jay County, Indiana, United States. As of the 2020 census, its population was 4,005 and it contained 1,948 housing units.
Jackson Township is one of nine townships in Wells County, Indiana, United States. As of the 2010 census, its population was 837 and it contained 336 housing units.
Roll is an unincorporated community in Washington Township, Blackford County, in the U.S. state of Indiana. Nearly all of the community's businesses have been closed for years. Although the Blackford County Historical Society lists Roll as a ghost town, homes are still maintained in the area, and it is still listed as a populated place by the U.S. Geological Survey. The rural community is located on Indiana State Road 18, about one mile west of its intersection with Indiana State Road 3.
