Population in Sofia 18 indicators covering population for Sofia. IndicatorLatest Year10-yr change Rank Demographic balances and indicators by type of projection and NUTS 3 0.0624 % change on previous year 2100 up 106.0% 395th Heat stress - Cities and FUAs — Mean population exposure to heat 31.23 Days per year 2025 up 10.7% 681st Population on 1st January by age, sex, type of projection and NUTS 3 121,034 Person 2100 down 3.2% 886th Assumptions for net migration by age, sex, type of projection and 188 Person 2100 up 20.5% 1026th Assumptions for fertility rates by age, type of projection and NUTS 3 1.79 Number 2100 down 0.5% 208th Population by age and sex - Cities and FUAs 1.30 million Persons 2025 down 1.6% 95th Population and built-up density - Cities and FUAs — Urbanised area 66 Square kilometres 2030 up 6.5% 189th Live births (total) by NUTS 3 region 1,927 Number 2024 down 7.4% 1231st Population density by NUTS 3 region 32 Persons per square kilometre 2024 down 6.4% 1708th Population on 1 January by broad age group, sex and NUTS 3 region 224,701 Number 2025 down 33.9% 1314th Population change - Demographic balance and crude rates at regional 298 2024 up 101.9% 1438th Population structure indicators by type of projection and NUTS3 region 82 2100 up 1.4% 865th Population on 1st January by age group, sex, type of projection and 244,671 Person 2100 up 0.4% 468th Projected life expectancy at birth, by sex, type of projection and 86.6 Year 2095 up 2.2% 1012th Demographic balances by type of projection and NUTS3 region 14,364 2095 down 3.1% 541st Assumptions for total fertility rates, type of projection and NUTS 3 1.75 Number 2095 down 1.2% 22nd Population on 1 January by age group, sex and NUTS 3 region 224,701 Number 2025 down 33.9% 1313th Live births by age group of the mothers and NUTS 3 region 1,927 Number 2024 down 7.4% 1231st