Landkreis Schaumburg was created on August 1, 1977 within the framework of the Kreisreform (district reform) ofLower Saxony by combining the former districts of Schaumburg-Lippe and Grafschaft Schaumburg. The town of Hessisch Oldendorf was reallocated toLandkreis Hameln-Pyrmont. The communities of Großenheidorn, Idensermoor-Niengraben and Steinhude had already been allocated to the community of Wunsdorf and thereby became part of LandkreisHanover.
The Landkreis Schaumburg essentially duplicates the borders ofSchaumburg at the time of the Middle Ages. Schaumburg was a medieval county, which was founded at the beginning of the 12th century. Shortly after, theHoly Roman Emperor appointed the counts of Schaumburg to become counts ofHolstein as well.
Hessian Schaumburg was annexed toPrussia along with the rest of Hesse-Kassel in 1866. AfterWorld War II, Schaumburg and Schaumburg-Lippe became districts within the state ofLower Saxony, until they were merged again in 1977.
The district (Landkreis) of Schaumburg has its northern half located in theNorth German Plain and the southern half in theWeser Uplands (Weserbergland). The Weser Uplands consist of hilly ridges and include the Wesergebirge, Harrl, Süntel, Bückeberg and Deister. TheSchaumburg Forest is a continuous strip of woods running in a direction of approximately 60 degrees along the northern border of the district. Just beyond the northern border of the district isLake Steinhude a 29,1 km2 shallow lake that is the largest in Northern Germany. The river Weser flows westward along the south of the Wiehengebirge through a broad valley and the town of Rinteln. The landscape is bordered to the west by the River Weser which is in the neighbouring district of Minden-Lübbecke. It flows north through theWestphalian Gap towards the city ofBremen and theNorth Sea. In the flat North German Plain to the east of Schaumburg district liesHanover, the capital city ofLower Saxony.
Thecoat of arms is almost identical to the old arms of Schaumburg, which had been used since the 12th century.Schaumburg Castle, in mediaeval times the seat of theCounts of Schaumburg, is located on theNesselberg ("nettle mountain") in Schaumburg, a locality in the town ofRinteln. Thenettle leaf in the middle of the arms has become the heraldic symbol of Holstein, symbolising the historical connection between Holstein and Schaumburg.