Pennville is a town in Penn Township, Jay County, Indiana, United States.

The change to the town name of Pennville was gradual and began when the post office was applied for at Camden.

Since Camden no longer existed after an earlier collapse of the corporation, and the post office was named Penn, this caused confusion and more and more the town was called Pennville.

The oil and gas boom that began in the 1880s increased business to such an extent that the people felt there should be a legal name for the town.

In 1905 a petition was presented to the Jay County Commissioners asking that the town be incorporated under the name of Pennville.

Provident Hospital, a precursor to the Caylor-Nickel Clinic in Bluffton, Wells County, Indiana, existed in Pennville from November 1, 1907, until 1917.

The collection of the library contains 9,872 volumes and circulates 5,200 items per year, serving a population of 1,308 area residents.

Many early settlers of Pennville are interred here, including Samuel Grisell,[19] who platted the town in 1836.

Over 4,000 persons are buried here, including many area Civil War veterans, including Thomas J. Cartwright, Enoch B. Hartley, Aaron W. Letts, Simon P. Morrow, Albert Pugh, Stephen B. H. Shanks, Aaron L. Somers, Jacob Walker, and Morris C.

The house, which stands at 129 West Lagro Street, has also been owned by the Gregg, Hedges, and Springer families.

Technically "moraines," accumulations of unconsolidated glacial debris formed by early glaciers, the hills range 100–150 foot high and are made up mostly of gravel and sand.

For whatever reason the man killed the woman causing her ghost to occasionally be seen haunting the area.

Founded by Hicksite Quakers, who were early abolitionists, Pennville and the surrounding area is rich in the history of the Underground Railroad.

The marker memorializes the local legend that the real run-away slave, on whom the character of Eliza Harris of Uncle Tom's Cabin was based, stopped at the Silliven home on her way to freedom.

The marker bears the inscription: A station on the Underground Railroad Tradition says Eliza Harris Of Uncle Tom's Cabin fame Rested here in her flight to Canada.