Department of Numbers

Massachusetts COVID-19 Case and Testing Statistics

As of Wednesday January 20 2021, Massachusetts had 481,040 cases of COVID-19 and 13,829 deaths. Over the past week, Massachusetts was finding 4,656 new cases per day on average and recording 67.1 deaths per day. Data for Massachusetts is provided by the COVID Tracking Project and will be updated daily.

Compare Massachusetts COVID-19 data to other states.

Massachusetts average daily new cases

The current 7 day rolling average of new case discovery in Massachusetts is 4,656.1. The 7 day rolling average of new case discovery last peaked on Tuesday January 12 2021 at 6,475.3 and is now 1,819.1 lower (28.09%).

Note: If testing is insufficient the above curve will underrepresent true case discovery. Nationwide daily testing per million residents is currently 5921.8. Reported Massachusetts testing per million residents per day is 12163.8.

Massachusetts average daily deaths

The current 7 day rolling average of reported deaths in Massachusetts is 67.1. The 7 day rolling average of reported deaths last peaked on Tuesday April 21 2020 at 160.0 and is now 92.9 lower (58.04%). From a post peak low of 10.0 on Thursday September 03 2020, the 7 day rolling average of reported deaths for Massachusetts has now grown by 57.1 (571.43%).

Statistics for positive cases of COVID-19 in Massachusetts

Total Cases and Total Cases per 1M residents are cumulative counts. Daily Positive measures are rolling 7 day averages.

Date Total
Cases
Total
Cases
per 1M
Daily
Positives
(7d Avg)
Daily
Positives
per 1M
(7d Avg)
01/20/21 481,040 69,219 4,656 670.0
01/19/21 476,526 68,570 4,857 698.9
01/18/21 473,441 68,126 5,200 748.2
01/17/21 470,140 67,651 5,336 767.8
01/16/21 465,726 67,016 5,513 793.3
01/15/21 459,927 66,181 5,744 826.5
01/14/21 454,402 65,386 6,114 879.8
01/13/21 448,447 64,529 6,342 912.6
01/12/21 442,529 63,678 6,475 931.8
01/11/21 437,042 62,888 6,353 914.2
01/10/21 432,791 62,277 6,447 927.7
01/09/21 427,135 61,463 6,136 883.0
01/08/21 419,721 60,396 6,363 915.6
01/07/21 411,601 59,227 5,203 748.7
01/06/21 404,053 58,141 5,162 742.8

more history ...

Death statistics for COVID-19 in Massachusetts

Total Deaths and Total Deaths per 1M residents are cumulative counts. Daily Death measures are rolling 7 day averages.

Date Total
Deaths
Total
Deaths
per 1M
Daily
Deaths
(7d Avg)
Daily
Deaths
per 1M
(7d Avg)
01/20/21 13,829 1,989.9 67.1 9.7
01/19/21 13,749 1,978.4 68.0 9.8
01/18/21 13,705 1,972.1 71.3 10.3
01/17/21 13,652 1,964.5 71.6 10.3
01/16/21 13,583 1,954.5 72.7 10.5
01/15/21 13,509 1,943.9 74.9 10.8
01/14/21 13,433 1,932.9 74.9 10.8
01/13/21 13,359 1,922.3 74.7 10.8
01/12/21 13,273 1,909.9 77.0 11.1
01/11/21 13,206 1,900.3 76.4 11.0
01/10/21 13,151 1,892.4 77.3 11.1
01/09/21 13,074 1,881.3 81.7 11.8
01/08/21 12,985 1,868.5 80.3 11.6
01/07/21 12,909 1,857.5 69.4 10.0
01/06/21 12,836 1,847.0 71.1 10.2

more history ...

COVID-19 testing statistics in Massachusetts

All measures below are rolling 7 day averages except Total Tests and Total Tests per 1M residents which are cumulative counts of COVID-19 tests as of the date reported. Testing statistics are dependent on high quality reporting of negative test results by states. Not all states report all tests and thus some of these measures may not represent the true testing picture.

Date Total
Tests
Total
Tests
per 1M
Daily
Tests
(7d Avg)
Daily
Tests
per 1M
(7d Avg)
Daily
Positive
Rate
(7d Avg)
01/20/21 12,536,712 1,803,972 84,532 12,164 5.5%
01/19/21 12,454,145 1,792,091 87,062 12,528 5.6%
01/18/21 12,398,580 1,784,096 89,122 12,824 5.8%
01/17/21 12,348,663 1,776,913 90,193 12,978 5.9%
01/16/21 12,259,486 1,764,081 89,132 12,826 6.2%
01/15/21 12,147,366 1,747,947 88,800 12,778 6.5%
01/14/21 12,046,398 1,733,419 89,886 12,934 6.8%
01/13/21 11,944,985 1,718,826 90,886 13,078 7.0%
01/12/21 11,844,709 1,704,397 91,214 13,125 7.1%
01/11/21 11,774,727 1,694,326 89,748 12,914 7.1%
01/10/21 11,717,313 1,686,065 89,484 12,876 7.2%
01/09/21 11,635,559 1,674,301 84,209 12,117 7.3%
01/08/21 11,525,766 1,658,502 83,010 11,945 7.7%
01/07/21 11,417,197 1,642,880 67,500 9,713 7.7%
01/06/21 11,308,785 1,627,280 65,702 9,454 7.9%

more history ...

A final word on this analysis

Please take my calculations and amatuer epidemiological speculations with a grain of salt as I'm moving quickly to get what I hope are meaningful measures online. There may be errors in my data and my thinking! Also, this data may be revised as states revise and backfill their data.

These statistics were inspired by posts on Calculated Risk and the Bondad Blog regarding metrics to track for COVID-19.

Last but not least, thanks to the folks at COVID Tracking Project for making this data available to everyone.