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Oregon Child Immunization Rates

Annual Rates for Two-Year Olds

Oregon immunization rates measure vaccination levels among two-year-olds in a given year. Rates are based on ALERT Immunization Information System (IIS) data for all two-year-olds with an Oregon address and a post-birth immunization record. In the past, rates were adjusted based on estimates of missing data but we have discontinued that process because the system is so well populated. Over 95% of all childhood immunizations given in Oregon since 1999 are in ALERT and reporting levels are even higher in recent years. For more information, please see our Q&A here.


Oregon two-year-old immunization rates are now available for 2021. Vaccination rates for two-year-olds held steady at 71% for the 4:3:1:3:3:1:4 series assessed as of December 31, 2021 and have remained at that level since 2019. Rates for the seven individual vaccines were unchanged or decreased by less than 3 percentage points since 2019. Future cohorts born during the COVID-19 pandemic may show more significant impact due to COVID-19 healthcare interruptions.

Up-to-date vaccination rates for the 4:3:1:3:3:1:4 series are also provided according to race and ethnicity. Please review the ALERT IIS Race and Ethnicity Data Use document for help in interpreting the rates.

Select a county below to view a PDF file containing the county's rates, or view all of Oregon's statewide immunization rates (pdf).


countymap  Link to Clatsop County Information Link to Columbia County Clinic Information Link to Clackamas County Information Link to Malheur County Information Link to Multnomah County Information Link to Jackson County Information Link to Klamath County Information Link to Lake County Clinic Information Link to Harney County Information Link to Washington County Information Link to Tillamook County Information Link to Yamhill County Information Link to Marion County Information Link to Polk County Clinic Information Link to Lincoln County Information Link to Benton County Clinic Information Link to Linn County Clinic Information Link to Hood River County Clinic Information Link to Wasco County Clinic Information Link to Sherman County Clinic Information Link to Gilliam County Clinic Information Link to Morrow County Clinic Information Link to Umatilla County Clinic Information Link to Wallowa County Clinic Information Link to Union County Clinic Information Link to Baker County Clinic Information Link to Grant County Clinic Information Link to Wheeler County Clinic Information Link to Jefferson County Clinic Information Link to Lane County Clinic Information Link to Douglas County Clinic Information Link to Coos County Clinic Information Link to Curry County Clinic Information Link to Josephine County Clinic Information Link to Deschutes County Clinic Information Link to Crook County Clinic Information

Interested in seeing your county's rates by zip code? Call the Oregon Immunization Program (971-673-0300) to make a request.

Immunization Series Completion Rates for Oregon Two-year-olds

Completion Rates by county for the 4:3:1:3:3:1:4 series.