The prices are displayed as you would see at the pump with three decimal points after the dollar amount, since even fractions of a cent play a factor in where drivers choose to fuel up. Read on to discover which state has the most expensive gas in the country and how much a gallon costs where you live. RELATED: This Is the Most Expensive Place to Buy a Home in Your State, Data Shows. Regular grade gas price per gallon: $3.020 In addition to regular grade costing over $3.00 per gallon, mid-grade and premium prices in Oklahoma are $3.290 and $3.514 per gallon, respectively. Regular grade gas price per gallon: $3.049 In the Lone Star State, mid-grade gasoline cost $3.365 per gallon and premium costs $3.659 per gallon. RELATED: This Is the Most Expensive Zip Code in the U.S, According to Data. Regular grade gas price per gallon: $3.054 You’ll pay even more at the pump in Arkansas if your car takes mid-grade or premium. According to AAA, those prices are $3.347 and $3.638 per gallon, respectively. Regular grade gas price per gallon: $3.084 In addition to high prices for regular grade gasoline, right now in Mississippi, mid-grade costs $3.370 per gallon and premium costs $3.696 per gallon. Regular grade gas price per gallon: $3.099 As of Oct. 27, mid-grade and premium gasoline in the Sunflower State costs $3.347 and $3.599 per gallon, respectively. Regular grade gas price per gallon: $3.099 The Show-Me State has the third-lowest premium grade gas prices ($3.610/gal.) and fourth-lowest mid-grade prices ($3.340/gal.) in the U.S. Regular grade gas price per gallon: $3.105 While gas prices in Kentucky are certainly high, the average cost of regular grade in the state is still lower than than the national average ($3.394), according to AAA data. Regular grade gas price per gallon: $3.142 In addition to regular grade costing $3.142 per gallon, the costs of mid-grade and premium in Minnesota right now are $3.360 and $3.688, respectively. Regular grade gas price per gallon: $3.143 In Wisconsin, prices for mid-grade and premium gasoline are, on average, $3.472 and $3.852, respectively, according to AAA data. Regular grade gas price per gallon: $3.163ae0fcc31ae342fd3a1346ebb1f342fcb For those Louisiana drivers who don’t use regular grade, on average, mid-grade costs $3.469 per gallon and premium costs $3.777 per gallon, according to AAA data. Regular grade gas price per gallon: $3.165 In addition to regular grade costing nearly $3.20 per gallon in Tennessee, mid-grade costs $3.496 per gallon and premium costs $3.814 per gallon, on average. Regular grade gas price per gallon: $3.167 At $3.292 per gallon, Iowa has the third-lowest mid-grade gasoline prices in the country. Premium costs $3.698 per gallon. Regular grade gas price per gallon: $3.182 While gas prices in South Carolina are high, the average cost of regular grade in the state is still lower than than the national average ($3.394), according to AAA data. And, on average, mid-grade and premium cost $3.524 per gallon and $3.843 per gallon, respectively. Regular grade gas price per gallon: $3.191 On average, mid-grade gasoline costs $3.404 per gallon and premium costs $3.623 per gallon right now in North Dakota. Regular grade gas price per gallon: $3.193 Though regular costs almost $3.20 per gallon right now in Ohio, it is still below the national average of $3.394. In the Midwestern state, mid-grade costs $3.516 per gallon and premium costs $3.848 per gallon. Regular grade gas price per gallon: $3.202 On average, in Alabama right now the prices for regular, mid-grade, and premium gasoline are $3.202, $3.520, and $3.848 per gallon, respectively. Regular grade gas price per gallon: $3.202 According to AAA data, Nebraska has the second-lowest mid-grade gasoline prices in the country at $3.292 per gallon. Premium costs $3.653 per gallon. Regular grade gas price per gallon: $3.248 In addition to regular costing nearly $3.25 per gallon, on average, in Georgia, mid-grade costs $3.577 per gallon and premium costs $3.905 per gallon, AAA data shows. Regular grade gas price per gallon: $3.253 In addition to regular grade costing $3.253 per gallon, the costs of mid-grade and premium in North Carolina right now are $3.589 and $3.929, respectively. Regular grade gas price per gallon: $3.279 In West Virginia, prices for mid-grade and premium gasoline are, on average, $3.560 and $3.855, respectively, according to AAA data. Regular grade gas price per gallon: $3.283 In the Great Lake State, mid-grade gasoline cost $3.604 per gallon and premium costs $3.943 per gallon. Regular grade gas price per gallon: $3.290 Regular costs nearly $3.30 per gallon, on average, and if your car requires a higher grade, expect to pay even more at the pump. In Virginia, mid-grade and premium cost $3.647 and $3.960 per gallon, respectively. Regular grade gas price per gallon: $3.308 The Mount Rushmore State has average gas prices of $3.308, $3.409, and $3.747 per gallon for regular, mid-grade, and premium, respectively, according to AAA data. Regular grade gas price per gallon: $3.312 On average, mid-grade gasoline costs $3.601 per gallon and premium costs $3.870 per gallon right now in New Mexico. Regular grade gas price per gallon: $3.315 For those Sunshine State drivers who don’t use regular grade, on average, mid-grade costs $3.656 per gallon and premium costs $3.962 per gallon, according to AAA data as of Oct. 27. RELATED: This Is the Most Expensive Small Town in the U.S., According to Data. Regular grade gas price per gallon: $3.323 At nearly $3.25 per gallon, on average, for regular grade, Indiana pump prices are still below the Oct. 27 national average of $3.394. Regular grade gas price per gallon: $3.330 On average, in New Hampshire right now the prices for regular, mid-grade, and premium gasoline are $3.330, $3.622, and $3.888 per gallon, respectively. Regular grade gas price per gallon: $3.351 In addition to regular grade costing $3.351 per gallon, the costs of mid-grade and premium in Delaware right now are $3.712 and $3.940, respectively. Regular grade gas price per gallon: $3.365 In addition to regular costing nearly $3.40 per gallon, on average, in Massachusetts, mid-grade costs $3.631 per gallon and premium costs $3.849 per gallon, AAA data shows. Regular grade gas price per gallon: $3.370 You’ll pay even more at the pump in Maryland if your car takes mid-grade or premium. According to AAA, those prices are $3.767 and $4.004 per gallon, respectively. Regular grade gas price per gallon: $3.372 Rhode Island may be a small state, but its gas prices are anything but. On average the state’s prices for regular, mid-grade, and premium are $3.372, $3.961, and $3.925 per gallon, respectively. Regular grade gas price per gallon: $3.379 In Maine, prices for mid-grade and premium gasoline are, on average, $3.663 and $3.992, respectively, according to AAA data. Regular grade gas price per gallon: $3.406 In addition to high prices for regular grade gasoline, right now in Vermont, mid-grade costs $3.636 per gallon and premium costs $3.897 per gallon. Regular grade gas price per gallon: $3.407 Montana has average gas prices of $3.407, $3.667, and $3.915 per gallon for regular, mid-grade, and premium, respectively, according to AAA data. Regular grade gas price per gallon: $3.449 On average, mid-grade gasoline costs $3.795 per gallon and premium costs $3.970 per gallon right now in New Jersey. Regular grade gas price per gallon: $3.483 In the Southwest state of Arizona, the average price of a regular gallon of gasoline is nearly $3.50, which is above the Oct. 27 national average of $3.394. Regular grade gas price per gallon: $3.508 Along with regular costing just over $3.50 per gallon, on average, in Wyoming, mid-grade gasoline costs $3.727 per gallon and premium costs $3.980 per gallon, according to Oct. 27 data from AAA. Regular grade gas price per gallon: $3.518 On average, in Colorado right now the prices for regular, mid-grade, and premium gasoline are $3.518, $3.853, and $4.140 per gallon, respectively. Regular grade gas price per gallon: $3.518 In addition to regular grade costing over $3.50 per gallon, mid-grade and premium prices in Connecticut are $3.800 and $4.010 per gallon, respectively. Regular grade gas price per gallon: $3.541 As of Oct. 27, mid-grade and premium gasoline in the Empire State costs $3.823 and $4.058 per gallon, respectively. Regular grade gas price per gallon: $3.570 For those Pennsylvania drivers who don’t use regular grade, on average, mid-grade costs $3.877 per gallon and premium costs $4.161 per gallon, according to AAA data. And for more interesting facts and state rankings sent straight to your inbox, sign up for our daily newsletter.  Regular grade gas price per gallon: $3.575 In addition to regular grade costing $3.575 per gallon, the costs of mid-grade and premium in Illinois right now are $3.913 and $4.302, respectively. Regular grade gas price per gallon: $3.711 In addition to regular costing over $3.70 per gallon, on average, in Idaho, mid-grade costs $3.898 per gallon and premium costs $4.075 per gallon, AAA data shows. Regular grade gas price per gallon: $3.719 Alaska has average gas prices of $3.719, $3.870, and $4.068 per gallon for regular, mid-grade, and premium, respectively, according to AAA data. Regular grade gas price per gallon: $3.735 With a regular gallon of gas costing nearly $3.75, on average, gas prices in Utah are more than $0.30 above the national average. Regular grade gas price per gallon: $3.787 In addition to a regular gallon of gas costing nearly $3.80, on average, mid-grade and premium gasoline in the Beaver State costs $3.948 and $4.143 per gallon, on average. Regular grade gas price per gallon: $3.879 According to Oct. 27 AAA data, in Washington state, a gallon of regular, mid-grade, and premium gasoline costs $3.879, $4.094, and $4.263, respectively. Regular grade gas price per gallon: $3.934 Not only does Nevada have the third-highest regular grade gas prices in the country, but the desert state’s mid-grade and premium prices are also the third highest in the U.S., at $4.159 and $4.337, respectively. Regular grade gas price per gallon: $4.292 At $4.471 and $4.723 per gallon, respectively, Hawaii also has the second highest mid-grade and premium gas prices in the U.S. Regular grade gas price per gallon: $4.564 California also has the highest mid-grade and premium gas prices in the country at $4.745 and $4.871 per gallon, respectively. RELATED: This Is the Most Expensive Suburb in Your State, Data Shows.