| Immunization program | Kindergarten population† | No. (%) surveyed | Type of survey conducted§ | Local data available online¶ | MMR** | DTaP†† | Varicella | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 2 doses (%) | 4 or 5 doses (%) | 1 dose (%) | 2 doses (%) | |||||||
| Median§§ | 94.3 | 95.1 | 96.2 | 93.8 | ||||||
| Alabama¶¶ | 57,245 | 57,245 (100.0) | Census | Yes | ≥92.7 | ≥92.7 | ≥92.7 | NReq | ||
| Alaska***,††† | 9,692 | 707 (7.3) | Stratified 2-stage cluster sample | No | 91.6 | 91.1 | NA | 91.3 | ||
| Arizona¶¶ | 81,710 | 81,710 (100.0) | Census | Yes | 93.4 | 93.5 | 96.2 | NReq | ||
| Arkansas§§§ | 39,630 | 38,242 (96.5) | Census (public), voluntary response (private) | No | 91.9 | 91.3 | NA | 91.6 | ||
| California§§§ | 574,702 | 564,121 (98.2) | Census | Yes | 96.9 | 96.4 | 98.2 | NReq | ||
| Colorado¶¶ | 65,718 | 65,718 (100.0) | Census | Yes | 88.7 | 88.6 | NA | 87.7 | ||
| Connecticut¶¶ | 39,174 | 39,174 (100.0) | Census | No | 96.5 | 96.5 | NA | 96.3 | ||
| Delaware | 10,988 | 1,053 (9.6) | Stratified 2-stage cluster sample | No | 96.7 | 96.9 | NA | 96.7 | ||
| District of Columbia¶¶ | 8,205 | 8,205 (100.0) | Census | No | 81.3 | 79.7 | NA | 80.5 | ||
| Florida¶¶,*** | 222,397 | 222,397 (100.0) | Census | Yes | ≥93.7 | ≥93.7 | NA | ≥93.7 | ||
| Georgia¶¶ | 131,459 | 131,459 (100.0) | Census | No | ≥93.4 | ≥93.4 | NA | ≥93.4 | ||
| Hawaii | 16,325 | 1,040 (6.4) | Stratified 2-stage cluster sample | No | 95.6 | 95.4 | 96.2 | NReq | ||
| Idaho | 22,553 | 22,458 (99.6) | Census | Yes | 89.5 | 89.3 | NA | 88.6 | ||
| Illinois¶¶ | 144,858 | 144,858 (100.0) | Census | Yes | 95.2 | 95.3 | NA | 94.8 | ||
| Indiana | 84,296 | 70,857 (84.1) | Voluntary response | Yes | 90.4 | 94.3 | NA | 90.2 | ||
| Iowa¶¶ | 39,632 | 39,632 (100.0) | Census | Yes | ≥93.0 | ≥93.0 | NA | ≥93.0 | ||
| Kansas***,†††,§§§ | 38,484 | 8,728 (22.7) | Stratified 2-stage cluster sample | Yes | 89.1 | 89.5 | NA | 88.3 | ||
| Kentucky***,§§§ | 55,152 | 50,538 (91.6) | Census | Yes | 92.6 | 93.7 | NA | 91.7 | ||
| Louisiana¶¶ | 58,277 | 58,277 (100.0) | Census | Yes | 96.1 | 97.7 | NA | 95.6 | ||
| Maine | 13,255 | 12,527 (94.5) | Census | Yes | 94.3 | 95.3 | 96.5 | NReq | ||
| Maryland§§§ | 68,528 | 67,747 (98.9) | Census | No | 98.6 | 99.0 | NA | 98.6 | ||
| Massachusetts¶¶,§§§ | 63,377 | 63,377 (100.0) | Census | Yes | 96.3 | 96.4 | NA | 96.0 | ||
| Michigan¶¶ | 119,028 | 119,028 (100.0) | Census | Yes | 95.0 | 95.3 | NA | 94.7 | ||
| Minnesota*** | 69,807 | 67,372 (96.5) | Census | Yes | 92.5 | 92.8 | NA | 92.2 | ||
| Mississippi¶¶ | 39,284 | 39,284 (100.0) | Census | Yes | ≥99.4 | ≥99.4 | NA | ≥99.4 | ||
| Missouri¶¶ | 73,113 | 73,113 (100.0) | Census | No | 95.2 | 95.3 | NA | 95.0 | ||
| Montana¶¶ | 12,188 | 12,188 (100.0) | Census | No | 93.2 | 92.6 | NA | 91.6 | ||
| Nebraska§§§ | 26,313 | 25,796 (98.0) | Census | No | 96.2 | 96.7 | NA | 95.5 | ||
| Nevada | 37,178 | 1,769 (4.8) | Stratified 2-stage cluster sample | No | 93.0 | 92.6 | NA | 92.6 | ||
| New Hampshire | 12,165 | 11,939 (98.1) | Census | No | ≥92.4 | ≥92.4 | NA | ≥92.4 | ||
| New Jersey¶¶ | 107,630 | 107,630 (100.0) | Census | Yes | ≥96.1 | ≥96.1 | ≥96.1 | NReq | ||
| New Mexico | 26,896 | 1,256 (4.7) | Stratified 2-stage cluster sample | No | 94.8 | 94.9 | NA | 94.5 | ||
| New York (including New York City)¶¶ | 226,456 | 226,456 (100.0) | Census | Yes | 97.2 | 96.9 | NA | 96.9 | ||
| New York City¶¶ | 100,466 | 100,466 (100.0) | Census | No | 97.8 | 97.3 | NA | 97.4 | ||
| North Carolina***,§§§ | 127,197 | 120,827 (95.0) | Census | No | 97.0 | 96.8 | NA | 96.8 | ||
| North Dakota | 10,365 | 10,293 (99.3) | Census | Yes | 94.2 | 94.1 | NA | 93.9 | ||
| Ohio | 138,753 | 132,763 (95.7) | Census | No | 92.1 | 92.1 | NA | 91.5 | ||
| Oklahoma*** | 53,898 | 48,481 (89.9) | Census (public), voluntary response (private) | No | 92.6 | 93.9 | 96.8 | NReq | ||
| Oregon¶¶,§§§ | 45,818 | 45,818 (100.0) | Census | Yes | 93.2 | 92.4 | 94.4 | NReq | ||
| Pennsylvania | 141,571 | 123,377 (87.1) | Voluntary response | Yes | 96.7 | 97.0 | NA | 97.0 | ||
| Rhode Island¶¶,***,§§§ | 11,025 | 11,025 (100.0) | Census | Yes | 96.4 | 96.2 | NA | 96.0 | ||
| South Carolina | 58,458 | 16,174 (27.7) | Stratified 1-stage cluster sample | No | 96.3 | 96.6 | NA | 96.1 | ||
| South Dakota | 12,125 | 12,112 (99.9) | Census | Yes | 96.6 | 95.9 | NA | 95.8 | ||
| Tennessee¶¶,*** | 78,743 | 78,743 (100.0) | Census | Yes | 96.9 | 96.7 | NA | 96.8 | ||
| Texas (including Houston)***,§§§ | 387,981 | 378,008 (97.4) | Census | Yes | 96.9 | 96.8 | NA | 96.4 | ||
| Houston***,§§§ | 43,340 | 38,343 (88.5) | Voluntary response (public), Census (private) | No | 95.1 | 95.2 | NA | 94.7 | ||
| Utah¶¶ | 48,827 | 48,827 (100.0) | Census | Yes | 93.4 | 93.2 | NA | 93.7 | ||
| Vermont¶¶ | 6,255 | 6,255 (100.0) | Census | Yes | 94.1 | 94.0 | NA | 93.2 | ||
| Virginia††† | 100,581 | 4,224 (4.2) | Stratified 2-stage cluster sample | Yes | 95.5 | 98.2 | NA | 93.3 | ||
| Washington*** | 85,118 | 79,977 (94.0) | Census | Yes | 90.6 | 90.7 | NA | 89.4 | ||
| West Virginia**** | 19,519 | 15,120 (77.5) | Voluntary response | Yes | 98.4 | 98.0 | NA | 98.1 | ||
| Wisconsin***,†††,§§§ | 66,178 | 1,223 (1.8) | Stratified 2-stage cluster sample | No | 91.8 | 96.5 | NA | 91.2 | ||
| Wyoming | NA | NA | Not conducted | No | NA | NA | NA | NA | ||
| Territories and associated states | ||||||||||
| American Samoa¶¶,**** | 758 | 758 (100.0) | Census | No | 90.9 | 81.8 | NReq | NReq | ||
| Federated States of Micronesia¶¶ | 1,886 | 1,886 (100.0) | Census | No | 94.0 | 75.8 | NReq | NReq | ||
| Guam | 2,625 | 700 (26.7) | Stratified 2-stage cluster sample | No | 85.0 | 92.0 | NReq | NReq | ||
| Marshall Islands¶¶ | 1,086 | 1,086 (100.0) | Census | No | 96.6 | 67.7 | NReq | NReq | ||
| Northern Mariana Islands¶¶ | 876 | 876 (100.0) | Census | No | 92.8 | 75.6 | NA | 92.6 | ||
| Palau¶¶,¶¶¶ | 313 | 313 (100.0) | Census | No | 100.0 | 100.0 | NReq | NReq | ||
| Puerto Rico†††† | NA | NA | Not conducted | No | NA | NA | NA | NA | ||
| U.S. Virgin Islands†††† | NA | NA | Not conducted | No | NA | NA | NA | NA | ||
Abbreviations: DTaP/DT = diphtheria and tetanus toxoids (DT) and acellular pertussis vaccine; MMR = measles, mumps, and rubella vaccine; NA = not available; NReq = not required for school entry.
* Estimates are adjusted for nonresponse and weighted for sampling where appropriate. Estimates based on a completed vaccine series (i.e., not vaccine-specific) use the “≥” symbol. Coverage might include history of disease or laboratory evidence of immunity.
† The kindergarten population is an approximation provided by each program.
§ Sample designs varied by state or area: census = program attempted to include all schools (public and private) and all children within schools in the assessment and had a student response rate of ≥90%; 1-stage or 2-stage cluster sample = schools were randomly selected, and all children in the selected schools were assessed (1-stage), or a random sample of children within the schools was selected (2-stage); voluntary response = a census with a student response rate of <90 br="" does="" imply="" not="" optional="" participation="" that="" was="">¶ Some programs publish kindergarten vaccination data online that are more detailed than the state-level estimates in this table. Examples of more detailed data include county, parish, school district, and school-level estimates.
** Most states require 2 doses of MMR; Alaska, New Jersey, and Oregon require 2 doses of measles, 1 dose of mumps, and 1 dose of rubella vaccines. Georgia, New York, New York City, North Carolina, and Virginia require 2 doses of measles and mumps and 1 dose of rubella vaccines. Iowa requires 2 doses of measles and 2 doses of rubella vaccines.
†† Pertussis vaccination coverage might include some diphtheria, tetanus toxoids, and pertussis vaccine (DTP) vaccinations if administered in another country or by a vaccination provider who continued to use DTP after 2000. Most states require 5 doses of DTaP for school entry, or 4 doses if the fourth dose was received on or after the fourth birthday; Illinois, Maryland, Virginia, and Wisconsin require 4 doses; Nebraska requires 3 doses. The reported coverage estimates represent the percentage of kindergartners with the state-required number of DTaP doses, except for Kentucky, which requires ≥5 but reports ≥4 doses of DTaP.
§§ Medians calculated from data from 49 states and the District of Columbia (i.e., does not include Wyoming, Houston, New York City, American Samoa, Federated States of Micronesia, Guam, Marshall Islands, Northern Mariana Islands, Palau, Puerto Rico, or U.S. Virgin Islands). Coverage data were reported for 3,988,127 kindergartners.
¶¶ The percentage surveyed likely was <100 100="" about="" actual="" as="" based="" br="" but="" current="" enrollment.="" incomplete="" information="" is="" on="" reported="" the="">*** Did not include some types of schools, such as online schools or those located on military bases or in correctional facilities.
††† Kindergarten vaccination coverage data were collected from a sample, and exemption data were collected from a census of kindergartners.
§§§ Counted some or all vaccine doses received regardless of Advisory Committee on Immunization Practices recommended age and time interval; vaccination coverage rates reported might be higher than those for valid doses.
¶¶¶ For Palau, estimates represent coverage among children in first grade.
**** Reported public school data only.
†††† Puerto Rico and U.S. Virgin Islands did not report data for the 2017–18 school year because of widespread logistical issues caused by Hurricane Maria.
* Estimates are adjusted for nonresponse and weighted for sampling where appropriate. Estimates based on a completed vaccine series (i.e., not vaccine-specific) use the “≥” symbol. Coverage might include history of disease or laboratory evidence of immunity.
† The kindergarten population is an approximation provided by each program.
§ Sample designs varied by state or area: census = program attempted to include all schools (public and private) and all children within schools in the assessment and had a student response rate of ≥90%; 1-stage or 2-stage cluster sample = schools were randomly selected, and all children in the selected schools were assessed (1-stage), or a random sample of children within the schools was selected (2-stage); voluntary response = a census with a student response rate of <90 br="" does="" imply="" not="" optional="" participation="" that="" was="">¶ Some programs publish kindergarten vaccination data online that are more detailed than the state-level estimates in this table. Examples of more detailed data include county, parish, school district, and school-level estimates.
** Most states require 2 doses of MMR; Alaska, New Jersey, and Oregon require 2 doses of measles, 1 dose of mumps, and 1 dose of rubella vaccines. Georgia, New York, New York City, North Carolina, and Virginia require 2 doses of measles and mumps and 1 dose of rubella vaccines. Iowa requires 2 doses of measles and 2 doses of rubella vaccines.
†† Pertussis vaccination coverage might include some diphtheria, tetanus toxoids, and pertussis vaccine (DTP) vaccinations if administered in another country or by a vaccination provider who continued to use DTP after 2000. Most states require 5 doses of DTaP for school entry, or 4 doses if the fourth dose was received on or after the fourth birthday; Illinois, Maryland, Virginia, and Wisconsin require 4 doses; Nebraska requires 3 doses. The reported coverage estimates represent the percentage of kindergartners with the state-required number of DTaP doses, except for Kentucky, which requires ≥5 but reports ≥4 doses of DTaP.
§§ Medians calculated from data from 49 states and the District of Columbia (i.e., does not include Wyoming, Houston, New York City, American Samoa, Federated States of Micronesia, Guam, Marshall Islands, Northern Mariana Islands, Palau, Puerto Rico, or U.S. Virgin Islands). Coverage data were reported for 3,988,127 kindergartners.
¶¶ The percentage surveyed likely was <100 100="" about="" actual="" as="" based="" br="" but="" current="" enrollment.="" incomplete="" information="" is="" on="" reported="" the="">*** Did not include some types of schools, such as online schools or those located on military bases or in correctional facilities.
††† Kindergarten vaccination coverage data were collected from a sample, and exemption data were collected from a census of kindergartners.
§§§ Counted some or all vaccine doses received regardless of Advisory Committee on Immunization Practices recommended age and time interval; vaccination coverage rates reported might be higher than those for valid doses.
¶¶¶ For Palau, estimates represent coverage among children in first grade.
**** Reported public school data only.
†††† Puerto Rico and U.S. Virgin Islands did not report data for the 2017–18 school year because of widespread logistical issues caused by Hurricane Maria.
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