Population: 42,838 (July 1999 est.)

Age structure:
0-14 years: 33% (male 7,178; female 6,826)
15-64 years: 61% (male 13,226; female 13,083)
65 years and over: 6% (male 1,020; female 1,505) (1999 est.)

Population growth rate: 1.34% (1999 est.)

Birth rate: 22.6 births/1,000 population (1999 est.)

Death rate: 8.15 deaths/1,000 population (1999 est.)

Net migration rate: -1.05 migrant(s)/1,000 population (1999 est.)

Sex ratio:
at birth: 1.06 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.01 male(s)/female
65 years and over: 0.68 male(s)/female
total population: 1 male(s)/female (1999 est.)

Infant mortality rate: 17.39 deaths/1,000 live births (1999 est.)

Life expectancy at birth:
total population: 67.94 years
male: 64.87 years
female: 71.21 years (1999 est.)

Total fertility rate: 2.42 children born/woman (1999 est.)

Nationality:
noun: Kittitian(s), Nevisian(s)
adjective: Kittitian, Nevisian

Ethnic groups: black

Religions: Anglican, other Protestant sects, Roman Catholic

Languages: English

Literacy:
definition: age 15 and over has ever attended school
total population: 97%
male: 97%
female: 98% (1980 est.)