In terms of area, the Lapland Border Guard District is the largest and northernmost administrative unit of the Finnish Border Guard. It monitors a total of 1,608 kilometres of national border: 380 km of border with Russia, 736 kilometres of border with Norway and 488 kilometres of border with Sweden.

The Lapland Border Guard District is responsible for maintaining border security in its surveillance area. Core functions include border control, border checks, crime prevention and international cooperation.

In addition to maintaining border security, the Lapland Border Guard District participates in military national defence by providing conscript training in the Border Jaeger Company based in Ivalo. The Ivalo Border Jaeger Company is the northernmost conscript training unit in the European Union.

The Lapland Border Guard District organisation consists of the headquarters (located in Rovaniemi), three border guard stations (located in Ivalo, Salla and Muonio), two border control stations and the Border Jaeger Company.

The Lapland Border Guard District is responsible for border checks at the international border crossing points in Salla and Raja-Jooseppi and at the airports in Rovaniemi, Kittilä, Ivalo and Enontekiö.