States with highest, lowest breast cancer screening rates

The state of Wyoming had the lowest breast cancer screening rate in 2022 at 59.5% — nearly 20% lower than the state with the highest rate of 78.4%, Rhode Island.

National Cancer Institute breast cancer screening rates are based on telephone survey data from the CDC's Behavioral Risk Factor Surveillance System. The data represents women across all races, age 40 and older, who had a mammogram within two years of the survey.

The national breast cancer screening rate in 2022 was 70.2%.

Here are the states with the highest and lowest breast cancer screening rates:

Lowest:

1. Wyoming - 59.5% 
2. New Mexico - 62.0% 
3. Idaho - 62.1%
4. Alaska - 62.5%
5. Nevada - 62.7% 
6. Oklahoma - 64.2% 
7. Utah - 64.5% 
8. Colorado - 65.6%
9. Illinois - 65.9% 
10. Vermont - 66.4% 

Highest:

1. Rhode Island -78.4% 
2. Louisiana - 77.0% 
3. Massachusetts - 77.0% 
4. Connecticut - 76.2% 
5. Maryland - 75.6%
6. Puerto Rico - 75.6% 
7. New Hampshire - 73.8%
8. Delaware - 73.7% 
9. Maine - 73.6% 
10. New York - 73.1%