"CITIES: The following U.S. cities may be referred to in copy without being followed by the state name: Anchorage, Atlanta, Atlantic City, Baltimore, Boise, Boston, Buffalo, Chicago, Cincinnati, Cleveland, Colorado Springs, Dallas, Denver, Des Moines, Detroit, El Paso, Fort Worth, Hollywood, Honolulu, Houston, Indianapolis, Iowa City, Jersey City, Las Vegas, Los Angeles, Memphis, Miami, Miami Beach, Milwaukee, Minneapolis, Nashville, New Orleans, New York City (use New York City in text for the first mention. City may be dropped thereafter if it is clear that the reference is to the city, not to the state), Oklahoma City, Omaha, Philadelphia, Phoenix, Pittsburgh, Sacramento, St. Louis, St. Paul, Salt Lake City, San Antonio, San Diego, San Francisco, Seattle, Tucson, Virginia Beach (note that Kansas City should always be followed by state—either Kansas or Missouri)
See The New York Times Manual of Style for list of foreign cities that may be referred to in copy without being followed by country name."