| Grajewo County | |
| Native Name: | Powiat grajewski |
| Settlement Type: | County |
| Total Type: | Total |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Podlaskie |
| Area Total Km2: | 967.24 |
| Population Total: | 47,353 |
| Population As Of: | 2019 |
| Population Density Km2: | auto |
| Population Urban: | 26858 |
| Population Blank1 Title: | Rural |
| Population Blank1: | 20495 |
| Coor Pinpoint: | Grajewo |
| Coordinates: | 53.65°N 49°W |
| Seat: | Grajewo |
| Parts Type: | Gminas |
| Parts: | Total 6 (incl. 1 urban) |
| P1: | Grajewo |
| P2: | Gmina Grajewo |
| P3: | Gmina Radziłów |
| P4: | Gmina Rajgród |
| P5: | Gmina Szczuczyn |
| P6: | Gmina Wąsosz |
| Blank Name: | Car plates |
| Blank Info: | BGR |
| Website: | https://web.archive.org/web/20031031185859/http://sp-grajewo.pbip.pl/ |
Grajewo County (Polish: powiat grajewski) is a unit of territorial administration and local government (powiat) in Podlaskie Voivodeship, north-eastern Poland. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and largest town is Grajewo, which lies 76km (47miles) north-west of the regional capital Białystok. The county also contains the towns of Szczuczyn, lying 150NaN0 south-west of Grajewo, and Rajgród, 190NaN0 north-east of Grajewo.
The county covers an area of 967.24km2. As of 2019 its total population is 47,353, out of which the population of Grajewo is 21,909, that of Szczuczyn is 3,376, that of Rajgród is 1,573, and the rural population is 20,495.[1]
Grajewo County is bordered by Ełk County to the north, Augustów County to the east, Mońki County to the south-east, Łomża County to the south, Kolno County to the south-west and Pisz County to the west.
The county is subdivided into six gminas (one urban, two urban-rural and three rural). These are listed in the following table, in descending order of population.
| Gmina | Type | Area (km2) | Population (2019) | Seat |
| Grajewo | urban | 18.9 | 21,909 | |
| Gmina Szczuczyn | urban-rural | 115.7 | 6,030 | Szczuczyn |
| Gmina Grajewo | rural | 308.1 | 5,801 | Grajewo * |
| Gmina Rajgród | urban-rural | 207.2 | 5,230 | Rajgród |
| Gmina Radziłów | rural | 199.4 | 4,768 | Radziłów |
| Gmina Wąsosz | rural | 117.9 | 3,615 | Wąsosz |
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