Geography and political subdivisions
Kildare is the 24th-largest of Ireland's 32 counties in area and seventh largest in terms of population. It is the eighth largest of Leinster's twelve counties in size, and second largest in terms of population. It is bordered by the counties of Carlow, Laois, Meath, Offaly, Dublin and Wicklow. As an inland county, Kildare is a generally lowland region. The county's highest points are the of the Wicklow Mountains bordering to the east. The highest point in Kildare is Cupidstown Hill on the border with Dublin, with the better known Hill of Allen in central Kildare.
Towns and villages
Looking east across the broad plains of South Kildare to the distant Wicklow Hills.
The county has three major rivers running through it: the Barrow, the Liffey and the Boyne. The Grand Canal crosses the county from Lyons on the east to Rathangan and Monasterevin on the west. A southern branch joins the Barrow navigation at Athy. The Royal Canal stretches across the north of the county along the border with Meath. Pollardstown Fen is the largest remaining calcareous fen in Ireland, covering an area of 220 hectares and is recognised as an internationally important fen ecosystem with unique and endangered plant communities, and declared a National Nature Reserve in 1986.
The Bog of Allen is a large bog that extends across 958 km2 and into County Kildare, County Meath, County Offaly, County Laois, and County Westmeath. Kildare has 243 km2 of bog (almost 14% of Kildare's land area) mostly located in the south-west and north-west, a majority of this being Raised Bog. It is habitat to over 185 plant and animal species.
There are 8,472 hectares (20,930 acres) of Forested land in Kildare, accounting for roughly 5% of the county's total land area. 4,056 hectares of this is Coniferous, while there is 2,963 hectares of Broadleaf and the remaining area are Unclassified Species. Coillte and Dúchas currently own 47% of the forestry. Coillte run Donadea Forest Park which is in North-Central Kildare. The forest covers 259 hectares of mixed woodland (60% Broadleaf, 40% Conifer) and is the largest forest park in Kildare.