The website GasBuddy.com allows you to search for the cheapest gas prices by ZIP code or by city. Another good source for gas price information by ZIP code is Mapquest.com.
Find local gas prices by ZIP code at GasBuddy.com, MotorTrend.com and GEICO.com, as of 2015. All three websites include the price per gallon and the name and address of each station.
To find the cheapest gas by ZIP code, visit websites such as GasBuddy.com or MapQuest.com, type the ZIP code into the search bar, select the type of fuel, and then click the Search icon. Browse the search results to view gas stations that sell gas at a lower price.
ZIP+4 codes are extensions to original five digit zip codes that include more specific geographic locations. They are designed to aid in the sorting and delivery of mail.
As of 2015, ZIP codes can be looked up at USPS.com, UnitedStatesZIPCodes.org and ZIPcode.org. All three websites offer search tools to find ZIP codes for a given location.
Non-mandatory ZIP codes were introduced to the United States in 1963. Robert Moon, a postal inspector with the United States Postal Service, proposed the ZIP code system as early as 1944.
A list of ZIP codes is available at UnitedStatesZIPCodes.org, which provides full lists of ZIP codes for each state in the United States. Types of ZIP codes listed include standard, PO boxes, military and single-address ZIP codes.
Several websites, including Yellowpages.com, Manta.com and MerchantCircle.com, provide online search tools for locating businesses by ZIP code. To find businesses by ZIP code using these search tools, enter the ZIP code and additional information about the business into the search boxes.
ZIP codes can be found at USPS.com, ZIPInfo.com and UnitedStatesZIPCodes.org, as of 2015. All three websites prompt users to enter an address to find the ZIP code.
The difference between normal ZIP codes and ZIP+4 codes is that ZIP+4 codes contain four extra digits that more accurately define the delivery area. The extra digits are not required, but they do help in routing mail more efficiently.