It is only one of two counties to have an official Gaeltacht outside of the West of Ireland, the other being An Rinn in County Waterford, and the only county in Leinster to have an official Gaeltacht.
The county is drained by the River Boyne.
Meath is the 14th-largest of Ireland’s 32 counties in area, and the ninth-largest in terms of population. It is the second-largest of Leinster’s 12 counties in size, and the third-largest in terms of population. The county town is Navan, where the county hall and government are located, although Trim, the former county town, has historical significance and remains a sitting place of the circuit court. County Meath also has the only two Gaeltacht areas in the province of Leinster, at Ráth Chairn and Baile Ghib.
There are eighteen historic baronies in the county. They include the baronies of Morgallion and Ratoath. While baronies continue to be officially defined units, they are no longer used for many administrative purposes. Their official status is illustrated by Placenames Orders made since 2003, where official Irish names of baronies are listed under "Administrative units".
There are 40 elected members of Meath County Council. Fine Gael holds 13 seats, Fianna Fáil holds 10, Sinn Féin holds 8, and there are 9 independents. There are two Dáil constituencies, Meath West and Meath East, which together return 6 deputies to Dáil Éireann. Fianna Fáil currently holds 1 seat in each constituency, Fine Gael holds 2 in Meath East and 1 in Meath West, and Sinn Féin holds 1 in Meath West. Previously there was only one Meath constituency. Fianna Fáil held three seats out of five in the Meath constituency between 1987 and its abolition in 2007; Fine Gael won the other two seats in four of the five general elections in that period, with the exception of 1992, when it lost a seat to the Labour Party (which was regained in 1997). Meath East lies entirely within the borders of the county; Meath West includes part of the neighbouring county of Westmeath. Part of the county along the Irish Sea coast, known as East Meath, which includes Julianstown and Laytown-Bettystown-Mornington, is included in the Louth constituency.