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COVID-19 testing - King County, Washington

Testing saves lives and lets people know if they need to take precautions, like isolating, to stop the virus from spreading; infected people without symptoms can still spread the virus. Testing also helps public health officials identify and respond to outbreaks, and to track new variants of the virus.

Report rapid test results to the Washington State Department of Health at  1-800-525-0127.  Handle Fumigation Certificate

COVID-19 testing - King County, Washington

Short URL: kingcounty.gov/covid/testing

Starting Monday, September 25, every U.S. household can place an order to receive four more free COVID-19 rapid tests. Visit covidtests.gov.

If you feel sick or have COVID‑19 symptoms, get tested right away, even if you're vaccinated. If you test positive, most treatments for COVID‑19 must start within 5 days of feeling sick.

Anyone can get tested for COVID‑19, no matter your age. We recommend that children under 2 years of age are tested by a parent or caregiver. Follow the instructions in the box for directions on testing children.

There are two main types of tests that can tell if you have COVID-19:

If your test is positive:

Testing is no longer required for travel within the U.S. or when entering the U.S.

For travel guidance, please visit the CDC's guidance for travelers.

See the list below for free or low-cost COVID-19 testing available throughout King County.

You will be asked to provide your ID and insurance card (if you have insurance), but it is not required to be tested.

These sites are not operated by King County and there may be a cost for their testing services. Please check their website for more information.

SeaMar Community Health Centers (multiple locations)

Search for no-cost COVID-19 testing (multiple locations)

Search for a Test to Treat clinic (multiple locations)

SeaMar Community Health Centers (multiple locations)

Search for no-cost COVID-19 testing (multiple locations)

Search for a Test to Treat clinic (multiple locations)

SeaMar Community Health Centers (multiple locations)

Search for no-cost COVID-19 testing (multiple locations)

Search for a Test to Treat clinic (multiple locations)

SeaMar Community Health Centers (multiple locations)

Search for no-cost COVID-19 testing (multiple locations)

Search for a Test to Treat clinic (multiple locations)

Increasing Community Access to Testing (ICATT)

SeaMar Community Health Centers (multiple locations)

Search for no-cost COVID-19 testing (multiple locations)

Search for a Test to Treat clinic (multiple locations)

SeaMar Community Health Centers (multiple locations)

Search for no-cost COVID-19 testing (multiple locations)

Search for a Test to Treat clinic (multiple locations)

Increasing Community Access to Testing (ICATT) (multiple locations)

SeaMar Community Health Centers (multiple locations)

Snoqualmie Valley Hospital (Snoqualmie)

Search for no-cost COVID-19 testing (multiple locations)

Search for a Test to Treat clinic (multiple locations)

Select a tab below to view definition

Antigen tests, sometimes called a "self-test", “rapid test” or “home test,” detect virus proteins in the body. Antigen self-tests use saliva and nasal swab samples. Results take 15-30 minutes.

Certain groups of people are considered high risk and are more likely to get seriously ill from COVID‑19. People over 60, unvaccinated people, people with underlying health issues, and pregnant people may be at higher risk.

Isolation means staying separate from all people who don't have COVID‑19, even within your home.

Tests that detect if COVID‑19 genetic material is in the body. These tests are done on samples collected via a nasal swab (from the nose). These tests include PCR and TMA.

Quarantine means staying at home with no visitors, away from people outside your home. Do not go to work, school, or public areas. If possible, stay away from people in your household who are at high risk for COVID‑19 (unvaccinated, older people, or those with medical conditions). 

COVID-19 testing - King County, Washington

Fcl Full Container Load Testing that is repeated at different points in time is referred to as serial testing. Some self-tests are designed to be used in a series 24 to 48 hours apart. Serial testing may be more likely to detect infection among close contacts of a COVID‑19 case than testing done at a single point in time.