What information does the Irish census contain?
Ireland is unusual among English-speaking census-taking countries in that our original household manuscript returns survive. These are the forms filled out and signed by the head of each household on census night. Most other countries only have Enumerators’ books, where family details were transcribed by the person charged with collecting the census information. The basic topographical divisions for the census are: County; District Electoral Division; Townland or Street. This is a simple hierarchical structure which makes it easy to access any area in the country. The returns are arranged in clusters by townland/street within district electoral division within county.