Regular Unleaded Prices in Sioux Falls, SD

Updated April 5, 2026 — Prices updated regularly from EIA data

$3.03

Regular Unleaded (87 octane) per gallon

About Regular Unleaded in Sioux Falls

Regular unleaded is priced at $$3.03 per gallon in Sioux Falls, South Dakota right now. The 87-octane grade is suitable for the vast majority of passenger vehicles and is always the cheapest option at the pump.

When to Use Regular Unleaded

Best for: everyday driving

Vehicle types: most cars and trucks

Fuel Price Comparison in Sioux Falls

Fuel TypePricevs. Regular UnleadedOctane
Regular Unleaded THIS PAGE$3.03—87
Premium Gasoline$3.78+$0.7591-93
Diesel Fuel$4.10+$1.07N/A

Regular Unleaded in Nearby Cities

Sioux City$3.10
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Frequently Asked Questions

Regular Unleaded in Sioux Falls is currently priced at approximately $$3.03 per gallon. Nearby cities have comparable prices within 10-15 cents depending on their state's tax structure and local competition.
Regular Unleaded costs more due to the additional refining required to achieve its specifications. Higher octane fuel requires more complex blending processes. The markup reflects real production costs, not arbitrary station pricing.
Check your vehicle's owner manual or the inside of your fuel door. Required means you must use that grade to avoid damage. Recommended means optimal performance uses that grade but lower grades are tolerable. Regular means 87 octane is sufficient.
For vehicles designed to use Regular Unleaded, using the correct grade maintains engineered fuel economy. Upgrading from regular to premium in a regular-fuel car produces no economy improvement. Using regular in a premium-required car may reduce fuel economy slightly.

Related Gas Price Pages

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