Porsgrunn is a locality located 105.52 km northeast from Oslo in Vestfold og Telemark, Norway. The population of Porsgrunn is 36,526 people. Holmestrand, Larvik, Notodden are located close to Porsgrunn. You can find Porsgrunn on any map using the following decimal coordinates: 59.1419 (latitude), 9.6568 (longitude).