Although Massachusetts generally has high rates of health insurance, that is not true across the board.

Some of the exceptions are in places like Springfield and Great Barrington.

A new report by the Blue Cross Blue Shield Foundation looks at the geography of where residents lack health insurance. (Read the full report here.)

The report finds that the uninsured tend to be concentrated in certain areas - generally poor communities with a high percentage of renters rather than homeowners.

Many of the uninsured are men between ages 18 to 34. A large number are noncitizens, whose access to coverage may depend on whether they have legal status. Many do not work, or work part-time, so they do not have access to employer-sponsored coverage. Based on the demographics of these communities, many uninsured residents are likely to have low levels of education, may not be proficient in English, and may not have internet access at home – all barriers to signing up for health insurance.

These are the 10 cities and towns in Massachusetts with the most uninsured individuals, on average, between 2013 and 2017.

1. Boston – 25,703 uninsured people

2. Springfield – 6,904

3. Worcester – 6,035

4. Lowell – 5,800

5. Lawrence – 5,633

6. Lynn – 5,113

7. New Bedford – 4,860

8. Framingham – 4,670

9. Fall River – 4,449

10. Brockton – 3,584

These are the 10 cities and towns with the highest rates of uninsurance between 2013 and 2017. By comparison, during that same time, only 2.7% of the Massachusetts population on average lacked health insurance.

1. Halifax – 9.3% of population is uninsured

2. Great Barrington 7.7%

3. Lawrence – 7.2%

4. Everett – 7.1%

5. Chelsea – 7.1%

6. Framingham – 6.7%

7. Chester – 6.7%

8. Brookfield - 6.4%

9. West Brookfield – 6.1%

10. Hadley - 5.8%