The Diocese of Las Vegas comprises five counties -- Clark, Esmeralda, Lincoln, Nye and White Pine -- and covers 39,683 square miles. The Diocese was established on March 21, 1995, as the Diocese of Las Vegas by his Holiness Pope John Paul II Canonical Erection of the Diocese on June 28, 1995. Patrons of the Diocese: The Holy Family Co-Patrons St. Peter and St. Paul. For complete Mass schedules and information regarding your local parish, visit our website. For our visitors and tourists we have Guardian Angel Cathedral and Shrine of the Most Holy Redeemer on the Las Vegas Strip. St. Joan of Arc Catholic Church is located downtown.