Population:
4,489,409 (July 2009 est.)

Age structure:
0-14 years: 15.6% (male 358,360/female 340,098)
15-64 years: 67.5% (male 1,506,364/female 1,522,789)
65 years and over: 17% (male 295,960/female 465,838) (2009 est.)

Median age:
total: 41 years
male: 39.1 years
female: 42.8 years (2009 est.)

Population growth rate:
-0.052% (2009 est.)

Birth rate:
9.64 births/1,000 population (2009 est.)

Death rate:
11.75 deaths/1,000 population (July 2009 est.)

Net migration rate:
1.59 migrant(s)/1,000 population (2009 est.)

Urbanization:
urban population: 57% of total population (2008)
rate of urbanization: 0.4% annual rate of change (2005-10 est.)

Sex ratio:
at birth: 1.06 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 0.99 male(s)/female
65 years and over: 0.64 male(s)/female
total population: 0.93 male(s)/female (2009 est.)

Infant mortality rate:
total: 6.37 deaths/1,000 live births
male: 6.42 deaths/1,000 live births
female: 6.33 deaths/1,000 live births (2009 est.)

Life expectancy at birth:
total population: 75.35 years
male: 71.72 years
female: 79.18 years (2009 est.)

Total fertility rate:
1.42 children born/woman (2009 est.)

HIV/AIDS - adult prevalence rate:
less than 0.1% (2007 est.)

HIV/AIDS - people living with HIV/AIDS:
200 (2007 est.)

HIV/AIDS - deaths:
fewer than 10 (2001 est.)

Major infectious diseases:
degree of risk: intermediate
food or waterborne diseases: bacterial diarrhea
vectorborne diseases: tickborne encephalitis
note: highly pathogenic H5N1 avian influenza has been identified in this country; it poses a negligible risk with extremely rare cases possible among US citizens who have close contact with birds (2009)

Nationality:
noun: Croat(s), Croatian(s)
adjective: Croatian

Ethnic groups:
Croat 89.6%, Serb 4.5%, other 5.9% (including Bosniak, Hungarian, Slovene, Czech, and Roma) (2001 census)

Religions:
Roman Catholic 87.8%, Orthodox 4.4%, other Christian 0.4%, Muslim 1.3%, other and unspecified 0.9%, none 5.2% (2001 census)

Languages:
Croatian 96.1%, Serbian 1%, other and undesignated 2.9% (including Italian, Hungarian, Czech, Slovak, and German) (2001 census)

Literacy:
definition: age 15 and over can read and write
total population: 98.1%
male: 99.3%
female: 97.1% (2001 census)

School life expectancy (primary to tertiary education):
total: 14 years
male: 13 years
female: 14 years (2006)

Education expenditures:
4.5% of GDP (2004)