Reference Data in Köln 59 indicators covering reference data for Köln. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree -35.98 % change on previous year 2025 down 137.8% 608th Cooling and heating degree days - Cities and FUAs — Change in cooling -172.07 % change on previous year 2025 down 149.0% 892nd Cooling and heating degree days - Cities and FUAs, annual growth rate -3.92 % change on previous year 2025 down 125.9% 547th Cooling and heating degree days - Cities and FUAs — Change in heating -19.35 % change on previous year 2025 down 139.3% 581st Cooling and heating degree days - Cities and FUAs — Change in heating -442.43 Degree days 2025 down 68.4% 946th Cooling and heating degree days - Cities and FUAs 1,760 Degree days 2025 down 9.3% 519th Cooling and heating degree days - Cities and FUAs — Change in cooling -9.52 Degree days 2025 down 135.5% 685th Cooling and heating degree days - Cities and FUAs — Cooling degree 40.43 Degree days 2025 down 47.3% 803rd Precipitation - Cities and FUAs — Change in extreme precipitation 3.4 Days per year 2024 up 754.7% 282nd Precipitation - Cities and FUAs — Extreme precipitation days 6.29 Days per year 2024 up 91.3% 624th Cooling and heating degree days by NUTS 2 regions - annual data 2,536 Number 2025 down 5.6% 910th Cooling and heating degree days by NUTS 2 regions - monthly data 397.79 Number 2025 up 41.0% 901st Dependency ratio - Cities and FUAs 26.3 Percentage of population aged 15-64 years 2025 up 3.1% 766th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 — 271st Coastal flooding - Cities and FUAs — Built-up area exposure to 0 Percentage of built-up area 2022 — 277th Victims in road accidents by NUTS 2 region 119 Number 2024 up 9.2% 143rd Stock of vehicles by category and NUTS 2 region 2.91 million Number 2024 up 15.5% 61st Deaths (total) by NUTS 3 region 51,029 Number 2024 up 16.0% 66th Establishments, bedrooms and bed-places in tourist accommodation, by 1,144 Number 2025 down 15.6% 243rd Deaths by age, sex and NUTS 2 region 51,029 Number 2024 up 16.0% 66th Life table by age, sex and NUTS 2 region 0.0036 2017 down 16.0% 178th Internet speed - Cities and FUAs — Uploading speed -26.9 Percentage of national value 2025 down 807.9% 1125th Internet speed - Cities and FUAs — Downloading speed -4.5 Percentage of national value 2025 down 1,025.0% 1018th Arrivals at tourist accommodation establishments by NUTS 2 region 7.94 million Number 2024 up 17.5% 96th Air transport of passengers by NUTS 2 region 9,994 Thousand passengers 2024 up 6.1% 92nd Maritime transport of freight by NUTS 2 region 44.3 Thousand tonnes 2017 — 174th Gross fixed capital formation by NUTS 2 region for total economy and 34,670 2023 up 33.6% 53rd Air transport of freight by NUTS 2 region 828.89 Thousand tonnes 2024 up 12.6% 13th GERD by sector of performance and NUTS 2 region 9,350 Million euro 2023 up 100.7% 17th Area by NUTS 3 region 7,365 Square kilometre 2026 up 0.0% 556th Net occupancy rate of bed-places and bedrooms in hotels and similar 59.8% 2024 down 3.2% 92nd Police-recorded offences by NUTS 3 region 37 Number 2024 up 8.8% 92nd Nights spent at tourist accommodation establishments by NUTS 3 region 14.45 million Number 2024 up 14.7% 182nd Deaths by age group, sex and NUTS 3 region 51,029 Number 2024 up 16.0% 64th Guest nights spent at short-stay accommodation offered via 2.48 million Number 2025 up 67.2% 141st Short-stay accommodation offered via collaborative economy platforms 296,270 Number 2025 up 38.9% 133rd Causes of death - potential years of life lost by NUTS 2 region of 3,109 Year 2023 down 8.2% 236th Causes of death - deaths by NUTS 2 region of residence and 52,077 Number 2023 up 12.1% 68th Nights spent at tourist accommodation establishments by month and 14.45 million Number 2024 — 106th Inability to keep home adequately warm by NUTS 2 region 7.3% 2025 — 102nd Inability to afford a meal with meat, chicken, fish (or vegetarian) 12.5% 2025 — 68th Arrears (mortgage or rent, utility bills or hire purchase) by NUTS 2 7.7% 2025 — 119th Inability to face unexpected financial expenses by NUTS 2 region 33.6% 2025 — 89th Stock of electric vehicles by category and NUTS 2 region 32,620 Number 2024 — 3rd Area by NUTS 3 region 7,364 Square kilometre 2015 down 0.0% 467th Sheep by NUTS 2 region 3,500 Livestock unit (LSU) 2023 down 4.4% 178th Poultry by NUTS 2 region 17,010 Livestock unit (LSU) 2023 up 20.4% 172nd Bovine by NUTS 2 region 142,070 Livestock unit (LSU) 2023 down 10.0% 123rd Pigs by NUTS 2 region 13,160 Livestock unit (LSU) 2020 down 5.1% 184th Goats by NUTS 2 region 300 Livestock unit (LSU) 2023 up 130.8% 156th SBS data by NUTS 2 region and NACE Rev. 2 102 2020 down 23.9% 188th Land cover overview by NUTS 2 region 7,365 Square kilometre 2022 up 0.0% 176th Land use overview by NUTS 2 region 7,365 Square kilometre 2022 up 0.0% 176th Land cover for FAO Forest categories by NUTS 2 region 7,365 Square kilometre 2022 up 0.0% 176th Establishments, bedrooms and bed-places in tourist accommodation by 1,291 Number 2011 down 4.0% 209th Causes of death by NUTS 2 region - absolute number, 3 year average 20,348 Number 2010 up 7.6% 28th Causes of death by NUTS 2 region - absolute number, 3 year average 42,702 Number 2010 up 4.4% 25th Causes of death by NUTS 2 region - absolute number, 3 year average 22,354 Number 2010 up 1.7% 24th SBS data by NUTS 2 region (NUTS 2006) and NACE Rev. 1.1 51 2007 down 16.4% 199th