It is located in north central Schleswig-Holstein, comprising almost the entirety of the Rendsburg-Eckernförde district.

As of the 2021 federal election, it comprises the entirety of the Rendsburg-Eckernförde district with the exception of the municipalities of Altenholz and Kronshagen, which are part of the Kiel constituency.

[1] Rendsburg-Eckernförde was created in 1976 and contained parts of the abolished constituencies of Schleswig – Eckernförde and Rendsburg – Neumünster.

Until 2002, it was coterminous with the district of Rendsburg-Eckernförde; in 2002, the municipalities of Altenholz and Kronshagen were transferred to the Kiel constituency.

The constituency was held by the Social Democratic Party (SPD) from its creation in 1976 until 1983, during which time it was represented by future Minister-President of Schleswig-Holstein Heide Simonis.

It was won by the Christian Democratic Union (CDU) in 1983, and represented by former Minister-President of Schleswig-Holstein Gerhard Stoltenberg.

Yellow background denotes an electorate win by a list member, or other incumbent.