It is located in central Lower Saxony, comprising the northern part of the Hanover Region.

As of the 2021 federal election, it comprises the northern part of the Hanover Region, specifically the municipalities of Burgdorf, Burgwedel, Garbsen, Isernhagen, Langenhagen, Neustadt am Rübenberge, Wedemark, and Wunstorf.

[1] Hannover-Land I was created in 1980 and contained parts of the abolished constituencies of Hannover III, Schaumburg, Celle, and Gifhorn.

Originally, the constituency comprised the municipalities of Burgdorf, Burgwedel, Garbsen, Isernhagen, Langenhagen, Neustadt am Rübenberge, Wedemark, Lehrte, and Uetze from the now-abolished Landkreis Hannover district.

The constituency was first held by future Chancellor of Germany Gerhard Schröder, a member of the Social Democratic Party (SPD), who served from 1980 to 1983.

Dietmar Kansy of the Christian Democratic Union (CDU) was elected in 1983 and served until 1998.

SPD candidate Monika Ganseforth won in 1998 and served a single term, before being succeeded by party fellow Caren Marks in 2002.