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Illinois Diesel Prices

Current Price:

$3.890

per gallon

Current Price

$3.890

per gallon

State Tax

$0.543

per gallon

Federal Tax

$0.244

per gallon

Total Tax

$0.787

per gallon

Illinois Diesel Tax Breakdown

ComponentAmount
Base Price (before taxes)$3.103/gal
State Tax (IL)$0.543/gal
Federal Tax$0.244/gal
Total Price at Pump$3.890/gal

Compare Illinois to Neighboring States

StateState TaxDifference
Illinois (Current)$0.543/gal-
Wisconsin$0.329/gal-0.214
Indiana$0.540/gal-0.003
Kentucky$0.244/gal-0.299
Missouri$0.170/gal-0.373
Iowa$0.330/gal-0.213

Get Illinois Diesel Prices via API

from oilpriceapi import OilPriceAPI

client = OilPriceAPI(api_key="YOUR_API_KEY")

# Get Illinois state average
price = client.diesel_prices.get_regional(state="IL")
print(f"Illinois diesel: ${price.price}/gal")

# Get station-level prices in Chicago
stations = client.diesel_prices.get_stations(
    lat=41.8781,
    lng=-87.6298,
    radius=8047  # 5 miles
)
for station in stations:
    print(f"{station.name}: ${station.diesel_price}")

Frequently Asked Questions

Why is diesel cheap in Illinois?

Illinois diesel is $3.890/gal due to a state tax of $0.543/gal (one of the highest in the US).

What cities in Illinois have the cheapest diesel?

Chicago, Aurora, Naperville typically have competitive diesel prices. View city-specific data for exact prices.

Can I get real-time Illinois diesel prices?

Yes! Use our API to get station-level prices updated every 24 hours from 130,000+ US stations including Illinois.

View API documentation →

Need Illinois Diesel Data in Your App?

Get state averages (free) or station-level prices ($0.024/query)

Get Free API Key →