Illinois vs Missouri: Electricity Rates & Average Bills
Side-by-side residential bills, cents-per-kWh, usage and 12-month trends — June 2026 EIA data.
Data through June 2026
EIA-826, verified Oct 11, 2026
The average residential bill in Missouri ($179.64/mo) runs $36.80/mo (26%) higher than Illinois ($142.84/mo).
Illinois bill$142.84/mo#33 highest of 51
Missouri bill$179.64/mo#13 highest of 51
US context$164.05/mostates median
The numbers, side by side
Latest month from EIA residential retail-sales data, plus each state's rank among tracked states.
| Measure | Illinois | Missouri |
|---|---|---|
| Avg monthly bill | $142.84 | $179.64 |
| Price per kWh | 19.89¢ | 16.22¢ |
| Typical usage | 718 kWh/mo | 1,108 kWh/mo |
| Bill rank | Highest: #33 · Price: #16 | Highest: #13 · Price: #27 |
| Bill, 12-mo change | −22.6% | −20.5% |
Illinois bill trend
Average residential bill, last 12 months.
Missouri bill trend
Average residential bill, last 12 months.
Common questions
Is Illinois or Missouri more expensive for electricity?
Missouri is — the average residential bill there is $36.80/month higher than Illinois's ($142.84/month).
How much bigger is Missouri's bill than Illinois's?
About 26% higher — $179.64 vs $142.84 per month in the latest EIA data.
Bill = residential revenue ÷ customers; price = revenue ÷ sales. See the methodology and each state's page: Illinois · Missouri.