Illinois offers competitive natural gas rates through multiple utilities and marketers in deregulated areas.
$13.12 per thousand cubic feet
Latest monthly average • Updated from EIA data
Illinois is a major natural gas consumer with strong supply from the Marcellus and Utica shales via pipelines. The state has a mix of regulated and deregulated areas, with major utilities like Nicor Gas and Peoples Gas serving the majority of residents. In many parts of the state, consumers can choose competitive marketers for better rates.
Cook County • Peoples Gas territory
Typical winter bill: $95–$175
Nicor Gas territory
Typical winter bill: $85–$155
Central Illinois
Typical winter bill: $80–$145
Central Illinois
Typical winter bill: $85–$150
Northern Illinois
Typical winter bill: $90–$160
Chicago suburbs
Typical winter bill: $90–$165
In deregulated areas, residents can shop for natural gas suppliers and often save money by switching from the default utility rate. Programs like LIHEAP also help qualifying households with high bills.
Our 10 proven tips can help you save hundreds of dollars this year — no matter which city you live in.
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