According to the search results, the population of Ireland in 2023 is estimated to be 5,056,935. This estimate is based on projections of the latest United Nations data and is subject to change. The population of Ireland has been growing at a moderate rate and is projected to continue to do so throughout the 21st century. The population of Ireland is expected to reach 5.19 million by the end of 2023. However, it is worth noting that the population of Ireland has grown by almost 98,000 people in the past year, the biggest increase since 2008.