To find the Catholic parish nearest to your location in the United States, use the "Parish Locator" map program run by Catholic Online, a website officially sanctioned by the Vatican.
Using the Catholic Online map, input your address and click "search." Results will populate on a scalable map, allowing you to see each parish in your area. The generated Google Map can be moved, zoomed and changed into street view, for ease in finding a local Catholic church. Additionally, you can find local Catholic churches by utilizing your local print phone directory, online Yellow Page sites, or local newspaper listings.