Inglefield, Indiana  Inglefield (also Sandersville) is a neighborhood within the northeastern part of the town of Darmstadt, Indiana, the second-largest city in Vanderburgh County, Indiana, just north of Evansville along U.S. Route 41. The Inglefield post office has been in operation since 1869. Inglefield is located at (38.1080988, -87.5589070), with an elevation of 472 feet (144 m). The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Inglefield has a humid subtropical climate, abbreviated "Cfa" on climate maps.