Chełmno County () is a unit of territorial administration and local government (powiat) in Kuyavian-Pomeranian Voivodeship, north-central Poland. It came into being on 1 January 1999, as a result of the Polish local government reforms adopted in 1998. Its administrative seat and only town is Chełmno, which lies north of Toruń and north-east of Bydgoszcz.

The county covers an area of . As of 2019 its total population is 52,018, out of which the population of Chełmno is 19,605 and the rural population is 32,413.

The county includes the protected area called Chełmno Landscape Park, which stretches along the right bank of the Vistula river.

Neighbouring counties Chełmno County is bordered by Świecie County to the north, Grudziądz County and Wąbrzeźno County to the east, Toruń County to the south, and Bydgoszcz County to the south-west.

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

Gmina Type Area(km2) Population(2019) SeatChełmnourban13.619,605 Gmina Unisławrural72.56,967UnisławGmina Chełmnorural114.16,084Chełmno *Gmina Stolnorural98.45,278StolnoGmina Liseworural86.25,212LisewoGmina Kijewo Królewskierural72.24,529Kijewo KrólewskieGmina Papowo Biskupierural70.44,343Papowo Biskupie* seat not part of the gmina

References Polish official population figures 2019