Average gas prices in Iowa have risen 8 cents per gallon in the last week. The average price of gas is $2.63 per gallon today, according to GasBuddy’s survey of over 2,000 Iowa stations. Prices in Iowa are almost 13 cents per gallon higher than a month ago and 25 cents per gallon lower than a year ago. According to GasBuddy price reports, the cheapest station in Iowa was priced at $2.14 per gallon yesterday. The lowest price for gas in Waterloo was at $2.43 per gallon.