Updated May 21, 2026 — Prices updated regularly from EIA data
$2.89
Average Regular Unleaded — Bismarck, North Dakota
Current Gas Prices in Bismarck
Regular unleaded in Bismarck, North Dakota costs approximately $$2.89 per gallon today. Bismarck's fuel market is competitive, with warehouse clubs and high-volume stations consistently undercutting the local average.
Fuel Type
Price / Gallon
Grade
Trend
Regular Unleaded
$2.89
87 octane
▼ Falling
Mid-Grade
$3.27
89 octane
▲ Rising
Premium
$3.51
91-93 octane
▬ Stable
Diesel
$3.60
N/A
▼ Falling
Price Comparison
Bismarck Average
$2.89
Regular Unleaded
North Dakota State Average
$2.97
$0.08 below the North Dakota average
National Average
$4.49
$1.60 below the national average
About Gas Prices in Bismarck
Price variation within Bismarck is substantial — often 20-30 cents per gallon between the cheapest and most expensive stations in the same neighborhood. This spread makes price-checking apps genuinely valuable for Bismarck drivers. The savings on a 15-gallon fill-up at the low end vs. high end can exceed $4.
Gas Prices by Brand in This City
Estimated prices based on brand modifiers. Sorted cheapest to most expensive.
Each gallon of gas in Bismarck, North Dakota includes 18.4 cents in federal excise tax plus {tax} cents in North Dakota state fuel tax — a combined {totalTax} cents per gallon. On a 15-gallon fill-up, you pay ${taxTotal} in fuel taxes alone.
Today's average gas price in Bismarck is $$2.89 per gallon for regular unleaded. Premium is approximately ${premPrice} and diesel runs ${dslPrice}. Individual station prices vary by 15-25 cents across the metro area.
The cheapest gas in Bismarck is typically found at warehouse clubs (Costco, Sam's Club), high-volume discount chains like Circle K and Speedway, and stations in commercial strips with multiple competitors. Our brand comparison table shows current estimated prices by major brand in Bismarck.
Bismarck's current average of $$2.89 compares to the North Dakota statewide average of $$2.97. Bismarck is $0.08 below the North Dakota average the state average, which is typical for a metro of its size and location.
Gas stations in Bismarck typically update prices 1-3 times per week in response to wholesale market changes. Prices generally dip early in the week and rise Thursday-Sunday. Following weekly trends helps identify optimal fill-up windows.
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