evidence: This report is based on data as of August 1, 2022 from the New York State Immunization Information System (NYSIIS). The rates below are calculated based on data of children that have received 3 polio immunizations by 2 years of age, reported their residency as the State of New York, provided their New York State county of residence, and have at least one immunization or have a New York State birth record outside of New York City. NYSDOH continues to work with localities to improve polio vaccination rates by ZIP code statewide, and will keep this page updated as more ZIP code information is available. [...] - Calculated rates are based on where the individual resides, based on the most recent resident information reported through NYSIIS.