| Kartuzy County | |
| Native Name: | Powiat kartuski |
| Settlement Type: | County |
| Total Type: | Total |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Pomeranian |
| Area Total Km2: | 1120.04 |
| Population Total: | 137,942 |
| Population As Of: | 2019 |
| Population Density Km2: | auto |
| Population Urban: | 21227 |
| Population Blank1 Title: | Rural |
| Population Blank1: | 116715 |
| Coor Pinpoint: | Kartuzy |
| Coordinates: | 54.3333°N 30°W |
| Seat: | Kartuzy |
| Parts Type: | Gminas |
| Parts: | Total 8 |
| P1: | Gmina Chmielno |
| P2: | Gmina Kartuzy |
| P3: | Gmina Przodkowo |
| P4: | Gmina Sierakowice |
| P5: | Gmina Somonino |
| P6: | Gmina Stężyca |
| P7: | Gmina Sulęczyno |
| P8: | Gmina Żukowo |
| Blank Name: | Car plates |
| Blank Info: | GKA |
| Website: | http://www.kartuskipowiat.com.pl |
Kartuzy County (Polish: powiat kartuski; Kashubian: kartësczi pòwiat) is a county in the Pomeranian Voivodeship, Poland, with administrative seat and largest town being Kartuzy.
It came into being on 1 January 1999, as a result of the Polish local government reforms passed in 1998. The only other town in the county is Żukowo. The county covers an area of 1120.04km2. As of 2019 its total population is 137,942, out of which the population of Kartuzy is 14,536, that of Żukowo is 6,691, and the rural population is 116,715.[1]
Kartuzy County is bordered by Wejherowo County to the north, the city of Gdynia to the north-east, the city of Gdańsk and Gdańsk County to the east, Kościerzyna County to the south, Bytów County to the west, and Lębork County to the north-west.
The county is subdivided into eight gminas (two urban-rural and six rural). These are listed in the following table, in descending order of population.
| Gmina | Type | Area (km2) | Population (2019) | Seat |
| Gmina Żukowo | urban-rural | 164.0 | 39,899 | Żukowo |
| Gmina Kartuzy | urban-rural | 205.3 | 33,914 | Kartuzy |
| Gmina Sierakowice | rural | 182.4 | 19,940 | Sierakowice |
| Gmina Somonino | rural | 112.3 | 10,771 | Somonino |
| Gmina Stężyca | rural | 160.3 | 10,575 | Stężyca |
| Gmina Przodkowo | rural | 85.4 | 9,556 | Przodkowo |
| Gmina Chmielno | rural | 79.2 | 7,767 | Chmielno |
| Gmina Sulęczyno | rural | 131.3 | 5,520 | Sulęczyno |