Population:
4,516,220 (July 2010 est.)
country comparison to the world: 122
[see also: Population country ranks ]

Age structure:
0-14 years: 26.7% (male 581,916/female 555,216)
[see also: Age structure - 0-14 years country ranks ]
15-64 years: 67.1% (male 1,443,606/female 1,411,168)
[see also: Age structure - 15-64 years country ranks ]
65 years and over: 6.2% (male 120,969/female 141,002) (2010 est.)
[see also: Age structure - 65 years and over country ranks ]

Median age:
total: 28.4 years
[see also: Median age - total country ranks ]
male: 27.9 years
[see also: Median age - male country ranks ]
female: 28.9 years (2010 est.)
[see also: Median age - female country ranks ]

Population growth rate:
1.347% (2010 est.)
country comparison to the world: 93
[see also: Population growth rate country ranks ]

Birth rate:
16.65 births/1,000 population (2010 est.)
country comparison to the world: 123
[see also: Birth rate country ranks ]

Death rate:
4.29 deaths/1,000 population (July 2010 est.)
country comparison to the world: 207
[see also: Death rate country ranks ]

Net migration rate:
1.11 migrant(s)/1,000 population (2010 est.)
country comparison to the world: 53
[see also: Net migration rate country ranks ]

Urbanization:
urban population: 63% of total population (2008)
[see also: Urbanization - urban population country ranks ]
rate of urbanization: 2.3% annual rate of change (2005-10 est.)
[see also: Urbanization - rate of urbanization country ranks ]

Sex ratio:
at birth: 1.05 male(s)/female
[see also: Sex ratio - at birth country ranks ]
under 15 years: 1.05 male(s)/female
[see also: Sex ratio - under 15 years country ranks ]
15-64 years: 1.01 male(s)/female
[see also: Sex ratio - 15-64 years country ranks ]
65 years and over: 0.86 male(s)/female
[see also: Sex ratio - 65 years and over country ranks ]
total population: 1.01 male(s)/female (2010 est.)
[see also: Sex ratio - total population country ranks ]

Infant mortality rate:
total: 9.72 deaths/1,000 live births
country comparison to the world: 154
[see also: Infant mortality rate - total country ranks ]
male: 10.59 deaths/1,000 live births
[see also: Infant mortality rate - male country ranks ]
female: 8.81 deaths/1,000 live births (2010 est.)
[see also: Infant mortality rate - female country ranks ]

Life expectancy at birth:
total population: 77.54 years
country comparison to the world: 55
[see also: Life expectancy at birth - total population country ranks ]
male: 74.93 years
[see also: Life expectancy at birth - male country ranks ]
female: 80.28 years (2010 est.)
[see also: Life expectancy at birth - female country ranks ]

Total fertility rate:
1.93 children born/woman (2010 est.)
country comparison to the world: 139
[see also: Total fertility rate country ranks ]

HIV/AIDS - adult prevalence rate:
0.4% (2007 est.)
country comparison to the world: 84
[see also: HIV/AIDS - adult prevalence rate country ranks ]

HIV/AIDS - people living with HIV/AIDS:
9,700 (2007 est.)
country comparison to the world: 106
[see also: HIV/AIDS - people living with HIV/AIDS country ranks ]

HIV/AIDS - deaths:
fewer than 200 (2007 est.)
country comparison to the world: 123
[see also: HIV/AIDS - deaths country ranks ]

Major infectious diseases:
degree of risk: intermediate
food or waterborne diseases: bacterial diarrhea
vectorborne diseases: dengue fever (2009)

Nationality:
noun: Costa Rican(s)
adjective: Costa Rican

Ethnic groups:
white (including mestizo) 94%, black 3%, Amerindian 1%, Chinese 1%, other 1%

Religions:
Roman Catholic 76.3%, Evangelical 13.7%, Jehovah's Witnesses 1.3%, other Protestant 0.7%, other 4.8%, none 3.2%

Languages:
Spanish (official), English

Literacy:
definition: age 15 and over can read and write
total population: 94.9%
[see also: Literacy - total population country ranks ]
male: 94.7%
[see also: Literacy - male country ranks ]
female: 95.1% (2000 census)
[see also: Literacy - female country ranks ]

School life expectancy (primary to tertiary education):
total: 12 years
male: 12 years
female: 12 years (2005)

Education expenditures:
5% of GDP (2008)
country comparison to the world: 66
[see also: Education expenditures country ranks ]