Population in Seine-Saint-Denis 13 indicators covering population for Seine-Saint-Denis. IndicatorLatest Year10-yr change Rank Assumptions for fertility rates by age, type of projection and NUTS 3 2 Number 2100 down 1.7% 7th Demographic balances and indicators by type of projection and NUTS 3 r 19,421 2100 down 0.4% 29th Live births (total) by NUTS 3 region 24,946 Number 2024 down 15.4% 155th Population density by NUTS 3 region 7,309 Persons per square kilometre 2024 up 9.1% 20th Population on 1 January by broad age group, sex and NUTS 3 region 1.73 million Number 2025 up 8.7% 265th Population change - Demographic balance and crude rates at regional le -2,060 2024 down 572.5% 1858th Population on 1st January by age group, sex, type of projection and NU 2.01 million Person 2100 up 0.4% 15th Population structure indicators by type of projection and NUTS3 region 69.2 2100 up 1.5% 1147th Assumptions for total fertility rates, type of projection and NUTS 3 r 1.85 Number 2095 down 1.9% 6th Projected life expectancy at birth, by sex, type of projection and NUT 89.4 Year 2095 up 1.2% 48th Demographic balances by type of projection and NUTS3 region 79,508 2095 up 5.3% 38th Population on 1 January by age group, sex and NUTS 3 region 1.73 million Number 2025 up 8.7% 264th Live births by age group of the mothers and NUTS 3 region 24,946 Number 2024 down 15.4% 155th