Testing Hub

All State Comparison of Testing Efforts

Through up-to-date visuals, track how testing volume, positivity, and proportion give a sense of whether the occurrence of new cases is slowing or growing.

State
Tests
Confirmed
Cases
Deaths
Alabama21133288648.9
Alaska552088666.0
Arizona18299291774.5
Arkansas28937237238.2
California32682194236.9
Colorado19922109035.0
Connecticut389281540125.5
Delaware27313197963.9
District of Columbia47872209187.7
Florida23329314060.0
Georgia24993282360.8
Hawaii184387637.0
Idaho15971204124.1
Illinois37775209067.2
Indiana18750160251.7
Iowa21850239939.1
Kansas15744171719.1
Kentucky22523129824.0
Louisiana448923397113.3
Maine2514136710.2
Maryland24373194063.7
Massachusetts445631817133.7
Michigan31889125069.3
Minnesota22239152135.3
Mississippi20971303191.5
Missouri18865174128.7
Montana2724087013.2
Nebraska21079202022.6
Nevada21307244048.8
New Hampshire1713757132.3
New Jersey360592216180.1
New Mexico39449128539.6
New York483842281169.1
North Carolina25544180030.0
North Dakota69625211322.6
Ohio22752119338.5
Oklahoma25780180923.1
Oregon1474870812.4
Pennsylvania14379117961.4
Puerto Rico10771119517.2
Rhode Island607732199102.0
South Carolina21139262560.9
South Dakota18827192620.9
Tennessee37155258831.4
Texas18283241450.8
Utah22954186613.8
Vermont242042729.3
Virginia21036159033.3
Washington22105106826.7
West Virginia2717071915.7
Wisconsin23763156621.0
Wyoming155347697.3
Tests: per 100k pop.
Confirmed Cases: per 100k pop
Deaths: per 100k pop

About this page:

This page was last updated on Thursday, September 17, 2020 at 04:22 PM EDT.

Cases, Deaths, and Testing in All 50 States

U.S.: Are We Testing Enough?

This graph shows the total number of cases, deaths, and tests performed in each state per 100,000 people. By comparing the rate of cases and deaths, we can get a sense of how COVID-19 has affected each state. Since confirmed case numbers may be dependent on how much testing a state is doing, it is also important to see how many tests have occurred in each state. If people who are infected cannot get tested, they will not be counted as a confirmed case in the state’s data.

Data Sources:

Testing data from The COVID Tracking Project;

cases data from JHU CSSE;

and population from ACS 1-year data (2018).;

It is important to track the testing that states are doing to diagnose people with COVID-19 infection in order to gauge the spread of COVID-19 in the U.S. and to know whether enough testing is occurring. When states report the number of COVID-19 tests performed, this should include the number of viral tests performed and the number of patients for which these tests were performed. Currently, states may not be distinguishing overall tests administered from the number of individuals who have been tested. This is an important limitation to the data that is available to track testing in the U.S., and states should work to address it.

When states report testing numbers for COVID-19 infection, they should not include serology or antibody tests. Antibody tests are not used to diagnose active COVID-19 infection and they do not provide insights into the number of cases of COVID-19 diagnosed or whether viral testing is sufficient to find infections that are occurring within each state. States that include serology tests within their overall COVID-19 testing numbers are misrepresenting their testing capacity and the extent to which they are working to identify COVID-19 infections within their communities. States that wish to track the number of serology tests being performed should report those numbers separately from viral tests performed to diagnose COVID-19.