Population in Köln 25 indicators covering population for Köln. IndicatorLatest Year10-yr change Rank Population on 1 January by age group, sex and NUTS 2 region 4.49 million Number 2025 up 2.9% 74th Population on 1 January by age, sex and NUTS 2 region 4.49 million Number 2025 up 2.9% 75th Animal populations by NUTS 2 region 222.5 Thousand heads (animals) 2003 down 19.2% 233rd Live births (total) by NUTS 3 region 37,658 Number 2024 down 6.2% 79th Population density by NUTS 3 region 614.6 Persons per square kilometre 2024 up 4.1% 295th Population on 1 January by broad age group, sex and NUTS 3 region 4.49 million Number 2025 up 2.9% 76th Live births by mother's age and NUTS 2 region 37,658 Number 2024 down 6.2% 76th Fertility rates by age and NUTS 2 region 1.3 Number 2024 down 10.6% 286th Population in private households by educational attainment level and N 3,413 Thousand persons 2025 up 2.9% 72nd Population in private households by educational attainment level and N 22.0% 2025 down 12.0% 67th Population change - Demographic balance and crude rates at regional le 21,535 2024 down 33.8% 90th Population in private households by educational attainment level, citi 20.9% 2025 down 12.9% 228th Population in private households by educational attainment level, coun 20.9% 2025 down 12.9% 228th Private households by degree of urbanisation and NUTS 2 region 2,220 Thousand households 2025 up 3.0% 56th Population on 1 January by age group, sex and NUTS 3 region 4.49 million Number 2025 up 2.9% 75th Live births by age group of the mothers and NUTS 3 region 37,658 Number 2024 down 6.2% 79th Persons living in households with very low work intensity by NUTS 2 re 12.5% 2025 — 30th Causes of death - crude death rate by NUTS 2 region of residence 1,161 Rate 2023 up 10.9% 114th Causes of death - standardised death rate by NUTS 2 region of residenc 1,040 Rate 2023 down 4.4% 156th Causes of death - crude death rate by NUTS 2 region of residence, 3 ye 1,161 Rate 2023 up 14.3% 146th Causes of death by NUTS 2 region - crude death rate 980.4 Rate 2010 up 3.0% 128th Causes of death by NUTS 2 region - crude death rate, 3 year average 973.4 Rate 2010 up 1.8% 133rd Causes of death by NUTS 2 region - crude death rate, 3 year average 998.3 Rate 2010 down 0.7% 107th Causes of death by NUTS 2 region - crude death rate, 3 year average 947.4 Rate 2010 up 4.7% 161st Causes of death by NUTS 2 region - standardised death rate, 3 year ave 1,035 Rate 2010 down 13.7% 131st