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COVID-19 Testing in Carroll County

The Carroll County Health Department testing site at the Ag Center in Westminster is now closed. Testing is available at many locations:

June Testing Events:

  • June 15th: St Johns Catholic Center, 2 PM – 6 PM
  • June 16th: St. Johns Catholic Center, 2 PM – 6 PM
  • June 17th: Taneytown Branch Carroll County Public Library, 2 PM – 6 PM


COVID-19 Testing Sites in Maryland

Maryland Department of Health Testing FAQs

CDC Diagnostic Testing Information

Types of COVID-19 Testing 

Type of test

What it tells you

How it’s done

When you’ll get results

What you need to know


If you have a current COVID-19 infection

Detects RNA of the virus


Nose/throat swab; saliva (less common)

1-7 days

Test results are highly accurate

*Best to get tested a few days after possible exposure when virus levels are high enough to test positive

Antigen test 

If you have a current COVID-19 infection

Detects proteins made by the virus


Nose/throat swab

Some may be very fast (15-30 minutes) and can be done in a healthcare provider’s office


Positive results are more reliable, but all test results should be confirmed with a PCR test


Antibody test

If you had a COVID-19 infection in the past and made antibodies to the virus

Blood test

Same day or 1-3 days, depending on test site

It does not show if you currently have COVID-19. A positive test does NOT mean that you are immune to future infections.

Testing for COVID-19 – CDC

COVID-19 Testing Basics – FDA