Percent of persons testing positive, and percent of tests that are positive are helpful indicators in understanding the spread of infection in a community. Percent of persons testing positive indicate one result reported for each individual tested (positive or negative), even if that person is tested more than once with the same result. As a result, it often reflects higher positivity rates.

Percent of tests that are positive indicates the total number of specimens tested, including when an individual is tested more than once, and reflects higher reported test numbers and lower positivity rates. It is also more widely used by other states and the Federal government, and is therefore useful to compare Delaware to other jurisdictions.

Because of the increasing frequency of repeat testing, using person-based percent positives could be misleading on a daily basis. Therefore, using the percent of tests that are positive is a more useful measure to make operational decisions. Data for percent of tests that are positive are based on the testing date, while data for persons testing positive is based on the date results are reported to DPH. There is a two-day lag for presenting data related to percent of tests that are positive to account for the time delay between the date of the test and the date that DPH receives the test result.

Latest Status

Test Rates by Zip Code and Week

Testing Totals in State of Delaware

State of Delaware
729,179 76,174.5 per 100,000 people

Cumulative Total Persons Tested by County

State of Delaware
1,869,381 195,287.0 per 100,000 people

Total Tests by County

Demographics

State of Delaware

Data are current as of 6pm the previous day. Last update: 06/12/2021

Total Persons Tested by Race/Ethnicity

Total Persons Tested by Race/Ethnicity & County

Race/Ethnicity State of Delaware New Castle Kent Sussex
Non-Hispanic White 354,692 193,853 48,847 95,094
Non-Hispanic Black 144,229 94,189 25,710 16,538
Hispanic/Latino 66,957 43,711 6,475 14,289
Another/Multiple 62,804 39,037 6,693 12,599
Asian/Pacific Islander 20,167 16,609 1,776 1,293
Unknown 80,330 45,400 13,473 18,262
State of Delaware

Data are current as of 6pm the previous day. Last update: 06/12/2021

Rate of Persons Tested by Race/Ethnicity

Rate of Persons Tested by Race/Ethnicity & County

Race/Ethnicity State of Delaware New Castle Kent Sussex
Hispanic/Latino 7,577.4 7,904.1 5,186.2 6,944.2
Non-Hispanic Black 6,793.6 6,729.7 5,660.0 6,143.8
Non-Hispanic White 5,388.5 5,427.2 4,176.6 5,165.4
Asian/Pacific Islander 5,370.6 5,377.5 4,860.4 4,294.3

Change location and/or topic

Select a new location and/or topic then click "Go" at the bottom.

State of Delaware
Select Location
Coronavirus (COVID-19)
Select Topic

Change location and/or topic

Select a new location and/or topic then click "Go" at the bottom.

State of Delaware
Select Location
Coronavirus (COVID-19)
Select Topic