- North Augusta, South Carolina
- North Bethesda, Maryland
- North Little Rock, Arkansas
- North Miami Beach, Florida
- North Port, Florida
- North Reading, Massachusetts
- North Richland Hills, Texas
- Northbridge, Massachusetts
- Northbrook, Illinois
- Northridge, California
- Norton, Ohio
- Norwalk, Iowa
- Norwell, Massachusetts
- Norwood, Massachusetts
- Novi, Michigan
- Oak Bluffs, Massachusetts
- Oak Creek, Wisconsin
- Oak Park, Michigan
- Oakbrook, Illinois
- Oakland, California
- Oakland, Tennessee
- Ocean City, Maryland
- Ocean Springs, Mississippi
- Ocean Township, New Jersey
- Ocoee, Tennessee
- Odenville, Alabama
- Odessa, Missouri
- Odessa, Texas
- Ogden, Iowa
- Ojai, California
- Okemos, Michigan
- Oklahoma City, Oklahoma
- Olathe, Kansas
- Old Fort, Tennessee
- Old Greenwich, Connecticut
- Old Westbury, New York
- Olympic Valley, California
- Omaha, Nebraska
- Ooltewah, Tennessee
- Opelika, Alabama