Population: 3,632,944 (July 1999 est.)

Age structure:
0-14 years: 21% (male 399,379; female 377,366)
15-64 years: 67% (male 1,232,072; female 1,213,364)
65 years and over: 12% (male 174,519; female 236,244) (1999 est.)

Population growth rate: 0.38% (1999 est.)

Birth rate: 13.58 births/1,000 population (1999 est.)

Death rate: 8.43 deaths/1,000 population (1999 est.)

Net migration rate: -1.31 migrant(s)/1,000 population (1999 est.)

Sex ratio:
at birth: 1.07 male(s)/female
under 15 years: 1.06 male(s)/female
15-64 years: 1.02 male(s)/female
65 years and over: 0.74 male(s)/female
total population: 0.99 male(s)/female (1999 est.)

Infant mortality rate: 5.94 deaths/1,000 live births (1999 est.)

Life expectancy at birth:
total population: 76.39 years
male: 73.64 years
female: 79.32 years (1999 est.)

Total fertility rate: 1.81 children born/woman (1999 est.)

Nationality:
noun: Irishman(men), Irishwoman(men), Irish (collective plural)
adjective: Irish

Ethnic groups: Celtic, English

Religions: Roman Catholic 92%, Anglican 3%, Islamic 0.11%, Jehovah's Witness 0.1%, Jewish 0.04%, other 4.75% (1991)

Languages: English is the language generally used, Irish (Gaelic) spoken mainly in areas located along the western seaboard

Literacy:
definition: age 15 and over can read and write
total population: 98% (1981 est.)
male: NA%
female: NA%