Detailed information on every Dail constituency including population make-up, transport and school services has been drawn up for the first time.
Based on Census 2006, the study provides TDs and Senators with a range of facts and figures on their electoral areas, such as nationality and religious breakdowns and the number of people in work.
John O'Donoghue, Ceann Comhairle, said the 43 profiles would provide an insight into the distinctive character of each electoral area.
"We're all very familiar with our own constituencies and the people we serve," Mr O'Donoghue said.
"However there are many occasions when access to a clear and detailed picture of each constituency would be helpful to deal with local issues and concerns."
The profiles were compiled by the Oireachtas Library and Research Service and outline the key differences between each constituency.
For example more than a quarter of boys in Tanaiste and Enterprise Minister Mary Coughlan's constituency, Donegal South West, leave school before turning 15 - the highest level in the state.
By comparison almost 60 per cent of men in Dublin South East — Minister for the Environment John Gormley's area — stayed in education until after 21, more than double the country average.
In Taoiseach Brian Cowen's constituency — Laois/Offaly — 58 per cent of males have left school before they turned 17, 8 per cent above the national average.
Dublin North-West has the highest number of singe parent families, Dublin Central has the lowest number of Irish nationals, and Meath East and Kildare South have the youngest populations.
Mr O'Donoghue said the breakdown of employment and transport services in each constituency was vital to allow TDs a clearer picture of the problems facing voters.
"These are key issues for every constituency and are clearly linked to education and training," Mr O'Donoghue said.
"Similarly, transport needs can be identified and housing needs can be identified based on clear statistical information compiled in these constituency profiles."
Mr O'Donoghue was presented with a copy of every constituency profile by staff from the Oireachtas Library and Research service, topped by his own area Kerry South.
The profiles are available on the Oireachtas website.
PA