Population: 39,996,671 (July 2000 est.)

Age structure:
0-14 years: 15% (male 3,046,379; female 2,866,712)
15-64 years: 68% (male 13,702,947; female 13,618,766)
65 years and over: 17% (male 2,830,607; female 3,931,260) (2000 est.)

Population growth rate: 0.11% (2000 est.)

Birth rate: 9.22 births/1,000 population (2000 est.)

Death rate: 9.03 deaths/1,000 population (2000 est.)

Net migration rate: 0.88 migrant(s)/1,000 population (2000 est.)

Sex ratio:
at birth: 1.07 male(s)/female
under 15 years: 1.06 male(s)/female
15-64 years: 1.01 male(s)/female
65 years and over: 0.72 male(s)/female
total population: 0.96 male(s)/female (2000 est.)

Infant mortality rate: 4.99 deaths/1,000 live births (2000 est.)

Life expectancy at birth:
total population: 78.79 years
male: 75.32 years
female: 82.49 years (2000 est.)

Total fertility rate: 1.15 children born/woman (2000 est.)

Nationality:
noun: Spaniard(s)
adjective: Spanish

Ethnic groups: composite of Mediterranean and Nordic types

Religions: Roman Catholic 99%, other 1%

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

Literacy:
definition: age 15 and over can read and write
total population: 97%
male: NA%
female: NA%