Mid Rim

The Mid Rim, also known as the Mid-Rim, Mid-systems or the Mid Rim Territories, is a region of the galaxy located between the Expansion Region and the Outer Rim Territories. With fewer natural resources—and therefore a smaller population—than many neighboring regions, the Mid Rim is a territory where residents work hard for everything they have. Several planets have built up impressive economies, and pirate raiders often hide in the relatively unexplored spaces far from major trade routes.

History
As it was colonized later in the era of the Galactic Federation, most of it remained outside of the control of the Galactic Empire in the years following the Federation's collapse. Much of it was under the control of independent, neutral states, while some parts were contested between the Empire and the New Republic.