School Requirements

Some of the vaccines recommended by the Centers for Disease Control and Protection (CDC) to keep children healthy are also required by Colorado law for children attending school or child care to prevent the spread of vaccine-preventable disease. Colorado law also allows parents to exempt their children from child care- and school-required immunizations on medical, religious, or philosophical grounds.

You should have received a letter from your child’s school or child care center to let you know which vaccines are required in order for your child to attend school or child care. For questions about your child’s required immunizations or to get an immunization certificate, please contact the Colorado Department of Public Health and Environment (CDPHE) Immunization Branch.

Did you know?
Colorado requires schools and licensed child care facilities to annually report their immunization and exemption rates to CDPHE. To look up your child’s school or child care facility rates, visit CDPHE's school and child care immunization data website

Parents consider a variety of factors when deciding where to send their child for school or child care, and now immunization and exemption rates can be part of that decision. 

Why is this important?
School communities with higher vaccine exemption rates are more likely to experience an outbreak of vaccine preventable disease (VPD). A VPD outbreak puts all children – including vaccinated children – at a higher risk of contracting the disease. Transparency around school and licensed child care immunization rates is especially critical for the parents of children who are too young to be vaccinated, cannot be vaccinated due to medical conditions, or who have weakened immune systems and are especially vulnerable to complications associated with vaccine-preventable diseases.

Why should I care about immunization rates if my child is vaccinated?
No vaccine is 100% effective. Vaccines work very well, but there are few people who may not be protected even when they have been vaccinated, and sometimes the protection of some vaccines fade over time.

How do I know if a facility's immunization rate is high enough?
When enough people in a community are vaccinated against a disease, those who are vaccinated provide a shield of protection for those who cannot be vaccinated or have compromised immune systems. This shield helps reduce the risk that a VPD will enter a community and spread to others. Pregnant women, young infants, children and adults with certain high-risk health conditions (i.e. cancer), children with certain allergies, and the elderly all rely on vaccinated members of their communities to protect them from potentially serious illnesses. This phenomenal shield is known as community immunity. For each disease, depending on how contagious it is, a particular percentage of the population must be vaccinated in order to keep it at bay.

Disease Minimum Level for Community Immunity Colorado Kindergarten Immunization Rate*
Measles 95% 87.4%
Mumps 86%87.4%
Pertussis 94% 90.3%
Polio 95% 87.2%
Chickenpox (Varicella) 90% 86.5%

*2018-19 National Immunization Survey

Where can I go for more information?