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Cambodia Demographics

Population of Cambodia (2026)

View live population, charts & trends: Population of Cambodia

Cambodia Population
18,051,219
see live
Yearly Change
+1.14%
Global Share
0.22%
Global Rank
73

Median Age

The median age in Cambodia is 26.4 years (2026).

Fertility in Cambodia

A Total Fertility Rate (TFR) of 2.1 represents the Replacement-Level Fertility: the average number of children per woman needed for each generation to exactly replace itself without needing international immigration. A value below 2.1 will cause the native population to decline


Total Fertility Rate (TFR)
2.5
(Live Births per Woman, 2026)

Life Expectancy in Cambodia

See also: Countries in the world ranked by Life Expectancy

Both Sexes
71.1
(life expectancy at birth, both sexes combined)
Females
73.7
(life expectancy at birth, females)
Males
68.4
(life expectancy at birth, males)


Infant Mortality Rate and Deaths of Children under 5 Years Old in Cambodia


Infant Mortality
17.6
(infant deaths per 1,000 live births)
Deaths under age 5
21.0
(per 1,000 live births)


Cambodia Urban Population

Currently, 26.9% of the population of Cambodia is urban (4,862,929 people in 2026)


Population Density

The 2026 population density in Cambodia is 102 people per Km2 (265 people per mi2), calculated on a total land area of 176,520 Km2 (68,155 sq. miles).

Largest cities by Population in Cambodia

(includes boroughs, districts, urban agglomerations, etc.)

Rank Urban Area Population Estimate (2025)
1 Phnum Pénh (Phnom Penh) 2,261,055
2 Siem Reap 352,948
3 Battambang 179,778
4 Anlong Veng 172,053
5 Poipet 127,995
6 Sihanoukville 105,307
7 Trapeang Prasat 96,464
8 Phumi Roessei 77,897
9 Sisophon 62,066
10 Kampong Cham 56,032
More info

See also

Sources

Definitions

Population Pyramid

A Population pyramid (also called "Age-Sex Pyramid") is a graphical representation of the age and sex of a population.

Types:

  • Expansive - pyramid with a wide base (larger percentage of people in younger age groups, indicating high birth rates and high fertility rates) and narrow top (high death rate and lower life expectancies). It suggests a growing population. Example: Nigeria Population Pyramid
  • Constrictive - pyramid with a narrow base (lower percentage of younger people, indicating declining birth rates with each succeeding age group getting smaller than the previous one). Example: United States
  • Stationary - with a somewhat equal proportion of the population in each age group. The population is stable, neither increasing nor decreasing.

Stages:

Population pyramid stages

Dependency Ratio

There are three types of age dependency ratio: Youth, Elderly, and Total. All three ratios are commonly multiplied by 100.

Youth Dependency Ratio

Definition: population ages 0-15 divided by the population ages 16-64.

Formula: ([Population ages 0-15] ÷ [Population ages 16-64]) × 100

Elderly dependency ratio

Definition: population ages 65-plus divided by the population ages 16-64.

Formula: ([Population ages 65-plus] ÷ [Population ages 16-64]) × 100

Total dependency ratio

Definition: sum of the youth and old-age ratios.

Formula: (([Population ages 0-15] + [Population ages 65-plus]) ÷ [Population ages 16-64]) × 100

NOTE: Dependency Ratio does not take into account labor force participation rates by age group. Some portion of the population counted as "working age" may actually be unemployed or not in the labor force whereas some portion of the "dependent" population may be employed and not necessarily economically dependent.