Population:
156,050,883 (July 2009 est.)

Age structure:
0-14 years: 34.6% (male 27,065,625/female 26,913,961)
15-64 years: 61.4% (male 45,222,182/female 50,537,052)
65 years and over: 4% (male 3,057,255/female 3,254,808) (2009 est.)

Median age:
total: 23.3 years
male: 22.9 years
female: 23.5 years (2009 est.)

Population growth rate:
1.292% (2009 est.)

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

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

Net migration rate:
-2.53 migrant(s)/1,000 population (2009 est.)

Urbanization:
urban population: 27% of total population (2008)
rate of urbanization: 3.5% annual rate of change (2005-10 est.)

Sex ratio:
at birth: 1.04 male(s)/female
under 15 years: 1.01 male(s)/female
15-64 years: 0.9 male(s)/female
65 years and over: 0.94 male(s)/female
total population: 0.93 male(s)/female (2009 est.)

Infant mortality rate:
total: 59.02 deaths/1,000 live births
male: 66.12 deaths/1,000 live births
female: 51.64 deaths/1,000 live births (2009 est.)

Life expectancy at birth:
total population: 60.25 years
male: 57.57 years
female: 63.03 years (2009 est.)

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

HIV/AIDS - adult prevalence rate:
less than 0.1% (2001 est.)

HIV/AIDS - people living with HIV/AIDS:
12,000 (2007 est.)

HIV/AIDS - deaths:
fewer than 500 (2007 est.)

Major infectious diseases:
degree of risk: high
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
vectorborne diseases: dengue fever and malaria are high risks in some locations
water contact disease: leptospirosis
animal contact disease: rabies
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: Bangladeshi(s)
adjective: Bangladeshi

Ethnic groups:
Bengali 98%, other 2% (includes tribal groups, non-Bengali Muslims) (1998)

Religions:
Muslim 83%, Hindu 16%, other 1% (1998)

Languages:
Bangla (official, also known as Bengali), English

Literacy:
definition: age 15 and over can read and write
total population: 47.9%
male: 54%
female: 41.4% (2001 Census)

School life expectancy (primary to tertiary education):
total: 8 years
male: 8 years
female: 8 years (2004)

Education expenditures:
2.7% of GDP (2005)