🇷🇪 Réunionvs🇬🇧 United Kingdom

Total Population
886,294
69,931,528
United Kingdom is 79× Réunion
Median age
39.4 years
41.2 years
1.8 years apart
Elderly Population Percentage
16.85%
19.94%
3.1 percentage points apart
Growth Rate
0.44%
0.55%
0.11 percentage points apart

Age composition in 2026:

🇷🇪 Réunion 🇬🇧 United Kingdom
Réunion United Kingdom
Young Population 20.15%178,632 16.72%11,693,284
Working Age Population 62.99%558,304 63.34%44,295,443
Elderly Population 16.85%149,358 19.94%13,942,801

In 2026, the median age is 39.4 years in Réunion and 41.2 years in United Kingdom.United Kingdom already reached Réunion’s current median age in 2012, about 14 years ahead in population aging.

The total population of Réunion peaks in 2049 at 941,556.The total population of United Kingdom peaks in 2072 at 76,068,380.

By 2050, the dependency ratio of Réunion will be 79.5%, and 26.73% of the population will be elderly.By 2050, the dependency ratio of United Kingdom will be 65.9%, and 24.68% of the population will be elderly.

Réunion United Kingdom
Demographic dividend (dependency ratio below 50%) 2002–2003 1950
Aging society (65+ reaches 7%) 2000 1950 or earlier
Aged society (65+ reaches 14%) 2022 47 years later 1975
Super-aged society (65+ reaches 20%) 2031 4 years later 2027