Population: 39,167,744 (July 1999 est.)

Age structure:
0-14 years: 15% (male 3,012,907; female 2,835,455)
15-64 years: 68% (male 13,411,046; female 13,406,214)
65 years and over: 17% (male 2,702,654; female 3,799,468) (1999 est.)

Population growth rate: 0.1% (1999 est.)

Birth rate: 9.99 births/1,000 population (1999 est.)

Death rate: 9.69 deaths/1,000 population (1999 est.)

Net migration rate: 0.66 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 male(s)/female
65 years and over: 0.71 male(s)/female
total population: 0.95 male(s)/female (1999 est.)

Infant mortality rate: 6.41 deaths/1,000 live births (1999 est.)

Life expectancy at birth:
total population: 77.71 years
male: 73.97 years
female: 81.71 years (1999 est.)

Total fertility rate: 1.24 children born/woman (1999 est.)

Nationality:
noun: Spaniard(s)
adjective: Spanish

Ethnic groups: composite of Mediterranean and Nordic types

Religions: Roman Catholic 99%, other 1%

Languages: Castilian Spanish 74%, Catalan 17%, Galician 7%, Basque 2%

Literacy:
definition: age 15 and over can read and write
total population: 96%
male: 98%
female: 94% (1986 est.)