Reference Data in Indianapolis 12 indicators covering reference data for Indianapolis. IndicatorLatest Year10-yr change Rank Cooling and heating degree days - Cities and FUAs — Cooling degree 246.97 Degree days 2025 up 0.8% 441st Cooling and heating degree days - Cities and FUAs — Change in cooling -24.8 Degree days 2025 up 7.2% 934th Cooling and heating degree days - Cities and FUAs 2,247 Degree days 2025 down 0.9% 283rd Cooling and heating degree days - Cities and FUAs — Change in heating -108.42 Degree days 2025 down 23.7% 286th Precipitation - Cities and FUAs — Extreme precipitation days 10.62 Days per year 2024 down 3.2% 445th Precipitation - Cities and FUAs — Change in extreme precipitation -0.874 Days per year 2024 down 66.8% 1060th Dependency ratio - Cities and FUAs 21.6 Percentage of population aged 15-64 years 2024 up 30.1% 976th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 — 273rd Coastal flooding - Cities and FUAs — Built-up area exposure to 0 Percentage of built-up area 2022 — 277th Main mode of transport to work - Cities and FUAs — Employed persons 570,594 Persons 2023 up 6.0% 31st Internet speed - Cities and FUAs — Downloading speed 4.7 Percentage of national value 2025 down 43.4% 696th Internet speed - Cities and FUAs — Uploading speed 9.8 Percentage of national value 2025 down 75.1% 496th