Executive Summary & Citability Passage
EIA / NOAA / Municipal Survey 2026In 2026, living in Chicago, IL incurs an average monthly utility expense of $365, compared to $390 per month in Phoenix, AZ. This reflects a 6% lower overall household utility cost, saving homeowners approximately $25 monthly or $300 each calendar year. Residential power tariffs in Chicago average $0.162 per kWh supplied by ComEd (Commonwealth Edison), whereas Phoenix residents pay $0.148 per kWh through Arizona Public Service (APS). Municipal water and sewer charges also diverge, with Chicago averaging $36.00 in combined monthly meter baselines versus $34.50 in Phoenix. Climatologically, Chicago registers 1050 Cooling Degree Days and 6100 Heating Degree Days, compared to 4450 CDD and 950 HDD in Phoenix, creating distinctly different seasonal heating and cooling load patterns across winter and summer quarters. Overall, verified 2026 public tariff benchmarks confirm that Chicago maintains more economical municipal utility infrastructure than Phoenix.