Skip to Content Accessibility Information
Text Size: A A A

COVID-19 Testing in Carroll County

Testing is an important tool to slow the spread of COVID-19.  

How to get tested:

Use an at-home test kit.

  • At-home COVID test kits are easy to use and provide quick results. These kits may be more likely to give false negative results, especially in people without symptoms. Repeat testing can increase accuracy; PCR testing can confirm negative results.
  • Free test kits are available in several county libraries. You can also get them through your insurance or from the federal government. Check our at-home test kit page for more information (including extended expiration dates). 
  • Test positive with a home kit? Report a positive at-home test and learn about next steps, isolation guidelines, and treatment options.
  • See CDC self-testing guidance

Get a PCR test.

  • PCR tests are very accurate but take longer to get results.
  • Find testing sites in the state at the Maryland Testing Locator. These sites may also offer rapid (antigen) tests. 
  • Check your nearest pharmacy for testing options. Ask about cost and insurance coverage.

Visit a test to treat site.

  • At test to treat sites, people are able to get a rapid COVID-19 test and – if they test positive and treatments are appropriate for them – immediately receive a prescription and have their prescription filled all at one location.
  • There are a few sites in the Carroll County area. Search the Maryland state testing site.
  • Learn about other treatment options and how to access them on our treatment page.


If you do not have insurance, search for low or no cost community-based testing sites.


When to get tested:

If you need assistance, call 410-876-4848, 8 am – 5 pm Monday-Friday. 

To search for other testing locations, visit the Maryland Department of Health testing search page.

When signing up for a COVID-19 test, remember to do the following:

  • Ask what type of test the test site is providing (PCR, rapid test, etc.).
  • Ask how long it will take to receive your results, and how you will receive your results (online portal, email, phone call, or another method of communication).
  • Check to make sure you get the appropriate documentation needed.

If you test positive, visit our Isolation and Quarantine page for isolation guidance to help protect others and prevent the spread of COVID-19.

Maryland Department of Health Testing FAQs

U.S. Department of Health and Human Services Testing Site Resource Page


Types of COVID-19 Tests

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. Check with your healthcare provider or health department for guidance on the timing of your test if it is related to an exposure.


Rapid (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 usually highly accurate. Results are most accurate after symptoms develop, less accurate for people without symptoms.


Antibody (Serology) 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.


Self-collection or self-test

If you have a current COVID-19 infection

Nose swab or saliva

Depends on the test

If you are positive, tell your health care provider and health department and take steps to prevent spread to others.


COVID-19 Testing Basics – FDA