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Sejny County

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Sejny County

Powiat sejneński
Coat of arms
Location within the voivodeship
Coordinates (Sejny): 54°7′N 23°22′E / 54.117°N 23.367°E / 54.117; 23.367Coordinates: 54°7′N 23°22′E / 54.117°N 23.367°E / 54.117; 23.367
Country Poland
 • Total856.07 km2 (330.53 sq mi)
 • Total20,002
 • Density23/km2 (61/sq mi)
 • Urban
 • Rural
Car platesBSE

Sejny County (Polish: powiat sejneński) a unit of territorial administration and local government (powiat) in Podlaskie Voivodeship, in the extreme north-east of Poland, on the border with Lithuania and Belarus. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and only town is Sejny, which lies 112 kilometres (70 mi) north of the regional capital Białystok.

The county covers an area of 856.07 square kilometres (330.5 sq mi). As of 2019 its total population was 20,002,[1] with Lithuanians comprising 20.2% (4,271) of the inhabitants.[2]

Neighbouring counties

Sejny County is bordered by Augustów County to the south and Suwałki County to the west. It also borders Lithuania to the north-east and Belarus to the east.

Administrative division

The county is subdivided into five gminas (one urban and four rural). These are listed in the following table, in descending order of population.

Gmina Type Area
Sejny urban 4.5 5,286  
Gmina Puńsk rural 138.4 4,164 Puńsk
Gmina Sejny rural 218.0 4,028 Sejny *
Gmina Krasnopol rural 171.6 3,810 Krasnopol
Gmina Giby rural 323.6 2,714 Giby
* seat not part of the gmina


  1. ^ GUS. "Population. Size and structure and vital statistics in Poland by territorial divison in 2019. As of 30th June". Retrieved 2020-09-14.
  2. ^ "Mniejszości narodowe i etniczne oraz społeczność posługująca się językiem kaszubskim wg powiatów w 2011 r. (2011 Census data)". (in Polish). Ministry of Interior and Administration. Retrieved 2 June 2018.
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Sejny County
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