You can easily look up which county where you are currently located with a United States Census tool located at quickfacts.census.gov/cgi-bin/qfd/lookup. This tool is easy to use, and it gives you extra information in addition to helping you identify the county.
Simply type in your current zip code or the name of the city where you are, and click on the "Go" button. The tool brings up links for the city along with the county and state in which it is located. You can also click these links to find U.S. Census data on the city, county and state that are displayed.