Illinois Propane Price Per Gallon (Latest EIA: 30 March 2026)
As of the week ending 30 March 2026, the average residential propane price in Illinois was $2.026 per gallon (EIA series W_EPLLPA_PRS_SIL_DPG). The Illinois price is below the US national average of $2.674 by $0.65 per gallon. Across the 2025-2026 heating season, the Illinois residential figure moved from $1.724 to $2.026.
How Illinois compares
| Comparison | Reference price | Difference |
|---|---|---|
| Illinois vs US national average | $2.674 | $-0.65 (-24.2%) |
| Illinois vs 5-year US average | $2.580 | $-0.55 |
| Illinois season start (Oct 2025) | $1.724 | +$0.30 |
Where Illinois ranks
Among the 38 states the EIA Weekly Heating Oil and Propane Survey publishes residential prices for, Illinois is the 6th-cheapest at $2.026 per gallon for the week ending 30 March 2026. The cheapest state in the survey is Nebraska ($1.642); the most expensive is Florida ($4.706). See the full state ranking table for every state and how it compares with the national average.
What drives the Illinois price
Illinois runs well below the national average, in the same low band as Wisconsin and Minnesota. PADD 2 terminal density and distributor competition keep the retail spread tight. The February 2026 cold snap lifted the residential price roughly 25 cents (from $1.96 in late January to a $2.20 peak), and the series gave most of that back by the end of the season.
Illinois propane price FAQ
What is the average cost of propane in Illinois?
The average residential propane price in Illinois is $2.026 per gallon, from the most recent EIA Weekly Heating Oil and Propane Survey (week ending 30 March 2026, series W_EPLLPA_PRS_SIL_DPG). That is $0.65 below the US national average of $2.674 per gallon. EIA surveys residential propane only from October through March, so this is the latest published average; the next weekly update is expected 7 October 2026.
What is the current propane price per gallon in Illinois?
As of the latest EIA Weekly Heating Oil and Propane Survey (week ending 30 March 2026), residential propane in Illinois averaged $2.026 per gallon (EIA series W_EPLLPA_PRS_SIL_DPG). EIA surveys residential propane only from October through March, so this is the most recently published reading; the next weekly update is expected 7 October 2026.
Is propane cheaper in Illinois than the US average?
Illinois residential propane is below the US national average of $2.674 per gallon by $0.65 (-24.2%), based on the same EIA weekly survey for the week ending 30 March 2026.
How much has the Illinois propane price changed this heating season?
Across the 2025-2026 heating season, the Illinois residential price moved from $1.724 per gallon at the start of October 2025 to $2.026 for the week ending 30 March 2026, a change of +$0.30 per gallon.
Where does Illinois rank for propane prices among states?
Among the 38 states the EIA Weekly Heating Oil and Propane Survey publishes residential prices for, Illinois is the 6th-cheapest at $2.026 per gallon for the week ending 30 March 2026. The cheapest is Nebraska at $1.642; the most expensive is Florida at $4.706.