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  1. Infant, child and adolescent immunizations
  2. School immunization rates

School immunization rates in King County

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Visit the School Immunization Dashboard for updated information about:

  • Varying percentages of students who are up-to-date by vaccine
  • Percentage of children who are up-to-date, conditional, out of compliance and exempt
  • Common reasons students file exemptions
  • Vaccination trends over time
  • How vaccination coverage varies for each school in a district
  • How public and private schools compare on immunization coverage

For additional information, refer to the King County School Immunization Assessment Report, 2012-18 (PDF)

Parents and guardians meet school immunization requirements by turning in a Certificate of Immunization Status form showing that their children received all required vaccinations (or have already had an illness and are now immune). As of August 2020, all immunization records must be medically verified. “Medically verified” means that a healthcare provider has confirmed the information is accurate. Parents/guardian can meet this requirement by turning in one of the following types of documentation:

  • A Certificate of Immunization Status (CIS) printed from the Immunization Information System (IIS).
  • A physical copy of the CIS form with a healthcare provider signature.
  • A physical copy of the CIS with medical immunization records from a healthcare provider. Forms must be verified and signed by school staff.
  • A CIS printed from MyIR.

People seeking exemptions from one or more vaccines must meet with a licensed health care provider to discuss the benefits and risks of vaccinations, fill out a Certificate of Exemption form signed by the provider, and submit the form to the school or child care. A letter from the provider may take the place of a signed form. Parents and guardians who demonstrate membership in a church or religious body that does not believe in medical treatment do not need a provider's signature on the exemption form.

Per state law (WAC 246-105-060,) all public and private schools and licensed preschools must report the immunization status of students by November 1st each year.

Learn more about school immunization requirements.

Percent of students in the school who meet school entry vaccination requirements for the student's age and grade, as reported by the school. This measure is also referred to as "complete."
Percent of students in the school who do not meet school entry requirements for the student's age and grade (e.g. they are missing one or more required vaccines), but are within 30 days of school entry or are making satisfactory progress towards meeting the requirements, as reported by the school. Students with conditional status can attend school or child care for a limited time until they finish their paperwork. From the time they get notified that their child is on conditional status, parents or guardians have 30 days to get the child vaccinated, show a record of past vaccination, or exempt their child for the missing vaccine.
Percent of students in the school who do not meet school entry vaccination requirements for the student's age and grade, as reported by the school.

Percent of students in the school who have at least one exemption, as reported by the school. A student may claim an exemption to immunization for medical, religious, or personal reasons. Students cannot claim a philosophical exemption for the Measles, Mumps, and Rubella (MMR) vaccine. A student may be exempt for any or all required vaccines, as indicated on a completed and signed Certificate of Exemption (COE) on file at the school. Note: When students have exemption forms on file at school and an outbreak of a vaccine-preventable disease occurs, they may be sent home until the outbreak is over, until they bring in their vaccination records, or until they get vaccinated.

Diphtheria is a serious bacterial infection usually affecting the nose and throat. Tetanus is a serious bacterial disease that that causes painful muscle spasms and can lead to death. Although now rare in the United States and Europe, these diseases are still common in developing countries where immunizations are not given routinely. The best way to prevent these diseases is through vaccinations. These vaccines include DTaP, Tdap, and Td.
Whooping cough – or pertussis – is a highly contagious and potentially serious respiratory infection caused by the Bordetella pertussis bacteria. Pertussis is known for uncontrollable, violent coughing fits which often make it hard to breathe. Severe pertussis most commonly affects infants and young children and can be fatal, especially in babies less than 1 year of age. In addition to DTaP vaccine for younger children, Tdap vaccine is a booster shot that helps protect adolescents and teens from the same diseases (diphtheria, tetanus and pertussis).
Poliovirus is a contagious viral illness that can cause paralysis, difficulty breathing and sometimes death. Polio has been eliminated in the United States thanks to widespread polio vaccination. Currently, the disease remains endemic in three countries – Afghanistan, Nigeria and Pakistan. Children should receive four doses of polio vaccine at ages 2 months, 4 months, 6-18 months, and a booster dose at 4-6 years.
Measles is an extremely contagious viral disease that is widespread in many parts of the world. There are still new cases of measles in the United States, with most involving unvaccinated people who were exposed while traveling abroad. People who are infected while traveling and return to the United States can spread the disease to others who are not vaccinated. Measles can be a serious illness in all age groups. However, children younger than 5 years of age and adults older than 20 years of age are more likely to suffer from measles complications, such as ear infections (which can result in permanent hearing loss), pneumonia and swelling of the brain (encephalitis). MMR vaccine is the best way to prevent measles, mumps and rubella infections. MMR vaccine should be routinely given when children are 12-15 months old, and a second dose should be given when they are 4-6 years old.
Hepatitis B is a liver infection caused by the hepatitis B virus (HBV) and causes both acute and chronic liver disease. While most HBV infections occur in adolescents and adults, the consequences of infection in early childhood have long lasting and serious consequences, including chronic liver disease, liver cancer and death. All children should get their first dose of hepatitis B vaccine at birth, followed by two more doses. Older children and adolescents through 18 years of age who did not get the vaccine when they were younger should also be vaccinated.
Varicella (also known as Chickenpox) is a viral infection that causes an itchy, blister-like rash. Chickenpox is highly contagious to people who haven't had the disease or have not been vaccinated against it. Although normally a mild illness, Chickenpox can be serious and can lead to complications such as bacterial infections, pneumonia and swelling of the brain (encephalitis). CDC recommends two doses of chickenpox vaccine for children, adolescents, and adults. Two doses of the vaccine are about 98% effective at preventing chickenpox.

Questions? Contact Public Health's Immunization Program at vaccineinfo@kingcounty.gov or 206-296-4774.