Population: 5.06 million (2020)
Age distribution:
- 0-14 years: 19.3% (male 492,793/female 478,297)
- 15-64 years: 66.1% (male 1,653,888/female 1,677,215)
- 65+ years: 14.6% (male 354,546/female 405,617)
Median age: 38.4 years
Life expectancy:
- Total population: 82.9 years (2020)
- Male: 80.3 years (2020)
- Female: 85.4 years (2020)
Fertility rate: 1.85 children born per woman (2020)
Net migration rate: 5.1 migrants per 1,000 population (2020)
Urban population: 64.8% (2020)
Ethnic composition:
- White Irish: 82.3%
- Other White: 10.2%
- Asian: 2.8%
- Black: 1.5%
- Other: 3.2%
Religious affiliation:
- Roman Catholic: 78.3%
- Church of Ireland: 4.2%
- Other Christian: 2.9%
- Muslim: 1.3%
- Other: 1.0%
- No religion: 12.3%
Language:
- English (official): 99.8%
- Irish (official): 39.8%
Education level:
- Primary education: 99.9%
- Secondary education: 95.3%
- Tertiary education: 53.3%