According to the division into constituencies by the law n°86-1197 of 24 November 1986, the 6th constituency of Moselle includes four cantons and thirty-one municipalities located in the arrondissement of Forbach :
According to the national census conducted in 1999 by the French National Institute for Statistics and Economic Studies (INSEE), the legal population of the constituency was estimated at 110,486 inhabitants.[1] The population of the constituency amounted to 106,636 inhabitants in 2008.
The canton of Stiring-Wendel includes a non-urbanized area of Forbach.
On 1 October 1992, Charles Metzinger was elected as a Senator. He consequently left his seat which stayed vacant until the end of the 9th legislature.[14]