Gas Prices in Sioux City, IA
Updated April 5, 2026 · AAA data · Regular unleaded
Why Gas Prices in Sioux City Vary
Gas prices in Sioux City reflect a mix of local taxes, distance to fuel distribution terminals, station density, and real estate costs. Sioux City benefits from lower operating costs, typically running 1¢ below the Iowa state average.
Prices at individual stations can vary by 5–15 cents within the same city depending on brand, location, and local competition. Use apps like GasBuddy to find the cheapest station near you in Sioux City.
Frequently Asked Questions
What is the gas price in Sioux City right now?
The average regular unleaded price in Sioux City, Iowa is $3.490/gal as of April 5, 2026. Station prices vary — expect a range of roughly $3.390 to $3.610 across the metro area.
Is gas cheaper in Sioux City or the suburbs?
Generally, suburban areas outside Sioux City have slightly lower gas prices due to lower operating costs and property taxes. If you're near a highway interchange or warehouse district, you may find lower prices than the city center.
When is the cheapest day to buy gas in Sioux City?
Nationwide data shows Monday and Tuesday tend to have slightly lower gas prices before weekly demand picks up. Avoid buying gas Thursday through Saturday when prices are typically higher.