The National Motorists Association (NMA) released a list of 25 cities with the highest number of reported speed trap locations over the past two years. The speed trap sites were posted by the public on the NMA's National Speed Trap Exchange (Huge List of Speed Traps | The National Speed Trap Exchange).

The Speed Trap Exchange identifies the specific locations of thousands of chronic speed traps in the United States and Canada. Information about each listing is enhanced by commentary from motorists who have encountered the police operations.

The following cities had the most reported speed traps since September 1, 2009. They are ranked by speed traps per 100,000 residents (per the 2010 census).

Livonia, Michigan 27.9 speed traps per 100,000 residents
Windsor, Ontario 17.6
Orlando, Florida 17.2
Las Vegas, Nevada 11.1
Denver, Colorado 10.9
Reno, Nevada 10.4
Tampa, Florida 8.9
Colorado Springs, Colorado 7.2
Austin, Texas 6.1
Sarasota, Florida 6.1
Portland, Oregon 5.8
Jacksonville, Florida 5.4
San Antonio, Texas (Bexar County) 5.3
Fresno, California 5.0
Hamilton, Ontario 5.0
New Orleans, Louisiana 4.7
Toronto, Ontario (Greater Toronto Area) 4.7
Houston, Texas (Harris County) 4.0
Edmonton, Alberta 3.3
San Diego, California (San Diego County) 3.2
Indianapolis, Indiana 3.2
San Jose, California 3.1
Chicago, Illinois (Cook County) 1.9
Los Angeles, California (Los Angeles County) 1.6
New York, New York (5 boroughs) 0.9

During the same two-year period, Vermont, New Hampshire, Michigan, Wyoming, and Colorado "led" all states with 11.4, 11.3, 9.4, 9.2, and 9.1 new speed trap listings per 100,000 residents respectively. Nova Scotia and Ontario topped the provinces, each with a rate of 8.7.