Languages: English (official, the language generally used), Irish (Gaelic or Gaeilge) (official, spoken by approximately 39.8% of the population as of 2016; mainly spoken in areas along Ireland's western coast known as gaeltachtai, which are officially recognized regions where Irish is the predominant language)
Definition: This entry provides a listing of languages spoken in each country and specifies any that are official national or regional languages. When data is available, the languages spoken in each country are broken down according to the percent of the total population speaking each language as a first language. For those countries without available data, languages are listed in rank order based on prevalence, starting with the most-spoken language.
Source: CIA World Factbook - This page was last updated on Saturday, September 18, 2021