Here are the 12 Provinces which have (or had) runefangs, along with the names of the swords. Note that Drakwald and Solland are destroyed, Solland's runefang was recovered from the body Gorbad Ironclaw and is now kept at Altdorf in the gift of the Emperor to sundry worthy Imperial Champion, the same is presumably true of the drakwald runefang, note that one of these is currently carried by Kurt Helborg (Solland?).
Also its worth mentioning that the Province of Nordland didn't exist at the time the Runefangs were made, so in all probability the Nordland Runefang was originally the Westerland Runefang, the province of Westerland (now called the wasteland on maps) ceased to exist after the secession of Marienburg from the Empire. The Count of Nordland's claim on Marienburg may in fact be based on the fact that he carries the old westerland runefang (speculation).
Sylvania also did not have a runefang because it was not part of the Empire when they were forged, but rather was conquered later.
Rumours that the Stirland Runefang has in fact been sold to Araby to provide new shoes for the elector count may or may not be exaggerated
Runefang of Averland - Mothers Ruin
Runefang of Hochland - Goblin Bane
Runefang of Middenland - Legbiter
Runefang of Nordland - Crow Feeder
Runefang of Ostland - Brain Wounder
Runefang of Ostermark - Troll Cleaver
Runefang of Reikland - Dragon Tooth
Runefang of Stirland - Orc Hewer
Runefang of Talabecland - Stone Breaker
Runefang of Wissenland - Blood Bringer
Runefang of Drakwald - Beast Slayer
Runefang of Solland - Grudge Settler