Eidanger

Eidanger is a former municipality in Telemark county, Norway. The 136-square-kilometre (53 sq mi) municipality existed from 1838 until its dissolution in 1964. The area is now part of Porsgrunn Municipality. The administrative centre was the village of Eidanger where Eidanger Church is located.

The municipality of Eidanger included a peninsula between the Eidangerfjorden and the Frierfjorden. Situated between the urban municipalities (towns) of Brevik and Porsgrunn. It also included the more rural areas to the north and east of the Eidangerfjorden. The municipality had excellent natural conditions for building harbours, it became the site of Norsk Hydro's plant at Herøya and the Dalen Portland (now part of the Norcem corporation) concrete factory just outside Brevik. More recently, a major industry in the area is Heistad Fabrikker, which makes products for diabetics. Isola maintains its head office and administration office in Eidanger. Isola has two factories in this area where bitumen-based products and steel roofing tiles are manufactured.

Eidanger Church (Eidanger kirke) is located in the village of Eidanger and was the main church for the municipality. The church was originally a relatively simple stone church in the Romanesque style, probably built ca. 1150. The church was extended in 1787 and received a new sacristy in 1981. The altarpiece, stained glass and the pulpit is from 1991 and made by Terje Grøstad. The baptismal font is of stone and is from the 1890s. The church has two bells, one from 1720 and one from 1940.