Some ZIP Codes differ within the same city or county, or may be used by multiple counties or locations. When you type in a ZIP Code, Drake Tax uses a ZIP Code database to auto-fill the City, State, and County. This feature uses the first option that is found, whether city or county, obtained from US resources. Generally, this option contains the majority of locations referenced by the code. If the taxpayer's address is actually in another county, you can change this by letting the information auto-fill and then editing the City or County field.