Illinois Gas Prices
Current Price:
$3.450
per gallon
Current Price
$3.450
per gallon
Federal Tax
$0.184
per gallon
PADD Region
R20
PADD 2 - Midwest
Illinois Gasoline Price Breakdown
| Component | Amount |
|---|---|
| Base Price (crude oil, refining, distribution, marketing) | $3.266/gal |
| Federal Excise Tax (all states) | $0.184/gal |
| Approximate Price at Pump | $3.450/gal |
Note: Pump price includes state excise taxes, state sales taxes, and other local fees which vary by state and are incorporated in the regional average.
How Illinois Gasoline Prices Are Measured
Gasoline prices come from two independent sources that measure differently:
AAA Daily Average
Based on over 100,000 gas stations nationwide. Updated daily using actual pump prices reported by stations and credit card transaction data.
- Update frequency: Daily
- Granularity: State-level (all 50 states + DC)
- Methodology: Station-reported pump prices
EIA Weekly Survey
Published by the U.S. Energy Information Administration. Illinois falls within PADD 2 - Midwest, one of five Petroleum Administration for Defense Districts (PADDs).
- Update frequency: Weekly (Mondays)
- Granularity: Regional (PADD 2 - Midwest)
- Methodology: Volume-weighted survey of ~900 retail outlets per region
Gas Prices in Illinois Cities
Find gasoline prices in major Illinois cities:
Get Illinois Gas Prices via API
from oilpriceapi import OilPriceAPI
client = OilPriceAPI(api_key="YOUR_API_KEY")
# Get Illinois gasoline state average
price = client.prices.get_latest(
by_code="GASOLINE_RETAIL_STATE_IL_USD"
)
print(f"Illinois gas: ${price.price}/gal")
# Get national gasoline average
national = client.prices.get_latest(by_code="GASOLINE_USD")
print(f"US average: ${national.price}/gal")Frequently Asked Questions
Why is gas relatively affordable in Illinois?
Illinois gasoline is $3.450/gal. Prices in Illinois are influenced by its location in the PADD 2 - Midwest, proximity to refineries, local state and county taxes, and regional supply and demand dynamics.
What cities in Illinois have the cheapest gas?
Chicago, Aurora, Naperville typically have competitive gasoline prices. View city-specific pages for the latest prices.
Can I get real-time Illinois gas prices?
Yes! Use our API to get state-level gasoline price averages updated daily from AAA data, or national averages updated every 15 minutes. API code for Illinois: GASOLINE_RETAIL_STATE_IL_USD
Related Pages
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