From the GoTopless site....
Topless Laws
In the following places, top freedom is in effect:
Canada
Some provinces of Canada including
British Columbia
Manitoba
Ontario (where equality has been tested and upheld several times)
United States
California coast, such as Santa Cruz
Hawaii
Maine
New York - text of the law in NY:
NY v Santorelli
Ohio
Texas
Cities
Some cities and localities of the United States, including
Boulder, Colorado
Eugene, Oregon
Portland, Oregon
Ashland, Oregon
Oregon Country Fair
Lucy Vincent beach in Chilmark on Martha's Vineyard
South Beach, Miami Beach, Florida
Key West, Florida
Fantasy Fest
New Orleans, Louisiana
Mardi Gras
Washington, D.C.
Columbus, OH
Even where topfree is legal, police might still arrest those practicing it for disorderly conduct or similar charges but do not let that deter you from exercising your constitutional right.
If you are going topless in public in these cities and not breaking the law behaving in a disorderly manner, no one can incriminate you. If they do... sue them as Phoenix Feeley did in NYC in 2007 and earned $29,000 in that lawsuit. Don't let the police get away with violating your top free rights. The law is the law and the police must follow it too!