Gas Prices in Chicago, IL
Regional Average:
$4.041
per gallon
Last updated: 7/3/2026
Fresh data
Regional Average
$4.041
per gallon
PADD Region
R20
PADD 2 - Midwest
About Chicago Gasoline Pricing
Gasoline prices for Chicago are tracked at the Illinois state/regional level — the same granularity used by the AAA daily average and EIA weekly survey. Chicago falls within PADD 2 - Midwest, one of five Petroleum Administration for Defense Districts (PADDs) the EIA uses for regional gasoline reporting.
Looking for station-level gasoline prices? Our Chicago diesel page includes real-time, station-by-station data — gasoline station-level data is on our roadmap.
Compare to Nearby Cities
Get Chicago Gas Prices via API
from oilpriceapi import OilPriceAPI
client = OilPriceAPI(api_key="YOUR_API_KEY")
# Get Chicago (Illinois) gasoline regional average
price = client.prices.get_latest(
by_code="GASOLINE_RETAIL_STATE_IL_USD"
)
print(f"Chicago gas: ${price.price}/gal")Frequently Asked Questions
What is the average gas price in Chicago?
The current Chicago regional gasoline average is $4.041/gal, based on the Illinois state average from AAA daily and EIA weekly survey data.
Does Chicago have its own gas price, or is it the Illinois average?
Gasoline prices are published at the state/regional level by AAA and the EIA, not per-city, so Chicago uses the Illinois state average (PADD 2 - Midwest). For station-by-station pricing in Chicago, see our diesel station data as a reference for the level of granularity our API can provide.
Can I get real-time gas prices for Chicago via API?
Yes! Use our API to get the Illinois state-level gasoline average that covers Chicago, updated daily from AAA data. API code: GASOLINE_RETAIL_STATE_IL_USD
Related Pages
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