At a glance
2024 CHILD Participation Table and Map
Percentage of U.S. Children < 6 years with 2+ Immunizations in IIS
Percentage of children aged <6 years participating in an immunization information system (IIS) in the United States (including all 50 states, five cities, the District of Columbia, and eight territories) in 2024.
National coverage: 99.2% (excluding territories)
Map of this data (printable version) [319 KB, 1 page]
| State/City | Percentage |
|---|---|
| Alabama | 94.9% |
| Alaska | 88.5% |
| Arizona | 100.8% |
| Arkansas | 100.7% |
| California | 97.5% |
| Chicago, IL | 105.3% |
| Colorado | 104.9% |
| Connecticut | 101.5% |
| DC | 112.2% |
| Delaware | 103.6% |
| Florida | 96.9% |
| Georgia | 104.1% |
| Hawaii | 60.1% |
| Houston, TX | 121.5% |
| Idaho | 92.1% |
| Illinois* | 96.7% |
| Indiana | 96.5% |
| Iowa | 99.8% |
| Kansas | 92.3% |
| Kentucky | 99.4% |
| Louisiana | 103.2% |
| Maine | 97.9% |
| Maryland | 99.0% |
| Massachusetts | 106.5% |
| Michigan | 94.1% |
| Minnesota | 95.0% |
| Mississippi | 103.6% |
| Missouri | 92.0% |
| Montana | 91.8% |
| Nebraska | 94.7% |
| Nevada | 99.9% |
| New Hampshire | 85.7% |
| New Jersey | 99.3% |
| New Mexico | 99.5% |
| New York* | 100.5% |
| New York City, NY | 111.4% |
| North Carolina | 109.3% |
| North Dakota | 90.8% |
| Ohio | 93.6% |
| Oklahoma | 93.0% |
| Oregon | 97.6% |
| Pennsylvania* | 91.8% |
| Philadelphia, PA | 109.5% |
| Rhode Island | 98.2% |
| San Antonio, TX | 77.2% |
| South Carolina | 104.2% |
| South Dakota | 96.8% |
| Tennessee | 98.0% |
| Texas* | 102.3% |
| Utah | 99.0% |
| Vermont | 101.7% |
| Virginia | 106.9% |
| Washington | 99.0% |
| West Virginia | 95.1% |
| Wisconsin | 95.0% |
| Wyoming | 99.2% |
| Territories | Percentage |
|---|---|
| American Samoa | 123.8% |
| Guam | 55.9% |
| Marshall Islands | 60.4% |
| Federated States of Micronesia | 98.4% |
| Northern Mariana Islands | 79.0% |
| Palau | 80.9% |
| Puerto Rico | 96.6% |
| Virgin Islands | 66.1% |
Footnotes
- City-based IIS participation rates are reported separately from their respective states; state rates do not include city data in their values.
Reported annual fluctuations in child participation may be due to programmatic and/or technical changes to the immunization information system. The denominator used to calculate child participation numbers are drawn from the 2024 Census estimates for each state and city.
Source: Immunization Information System Annual Report, CY2024
2024 ADOLESCENT Participation Table and Map
Percentage of U.S. Adolescents 11-17 years with 2+ Adolescent Immunizations in IIS
Percentage of adolescents aged 11-17 years participating in an immunization information system (IIS) in the United States (including all 50 states, five cities, the District of Columbia, and eight territories) in 2024.
National coverage: 88.6% (excluding territories)
Map of this data (printable version) [719 KB, 1 page]
| State/City | Percentage |
|---|---|
| Alabama | 58.7% |
| Alaska | 71.0% |
| Arizona | 103.9% |
| Arkansas | 95.3% |
| California | 82.4% |
| Chicago, IL | 100.6% |
| Colorado | 92.1% |
| Connecticut | 89.5% |
| DC | 91.7% |
| Delaware | 113.8% |
| Florida | 67.9% |
| Georgia | 96.6% |
| Hawaii | 54.6% |
| Houston, TX | 117.9% |
| Idaho | 75.4% |
| Illinois* | 92.8% |
| Indiana | 90.8% |
| Iowa | 88.7% |
| Kansas | 84.6% |
| Kentucky | 89.0% |
| Louisiana | 93.4% |
| Maine | 113.5% |
| Maryland | 88.5% |
| Massachusetts | 100.0% |
| Michigan | 84.5% |
| Minnesota | 86.0% |
| Mississippi | 70.8% |
| Missouri | 76.5% |
| Montana | 70.3% |
| Nebraska | 83.3% |
| Nevada | 91.7% |
| New Hampshire | 71.3% |
| New Jersey | 96.3% |
| New Mexico | 93.4% |
| New York* | 112.3% |
| New York City, NY | 98.4% |
| North Carolina | 83.2% |
| North Dakota | 85.8% |
| Ohio | 81.1% |
| Oklahoma | 73.9% |
| Oregon | 84.2% |
| Pennsylvania* | 86.3% |
| Philadelphia, PA | 104.4% |
| Rhode Island | 86.4% |
| San Antonio, TX | 94.9% |
| South Carolina | 87.0% |
| South Dakota | 94.9% |
| Tennessee | 82.0% |
| Texas* | 99.6% |
| Utah | 86.8% |
| Vermont | 90.7% |
| Virginia | 117.0% |
| Washington | 88.7% |
| West Virginia | 83.0% |
| Wisconsin | 83.4% |
| Wyoming | 73.2% |
| Territories | Percentage |
|---|---|
| American Samoa | 142.% |
| Guam | 64.6% |
| Marshall Islands | 62.6% |
| Federated States of Micronesia | 98.1% |
| Northern Mariana Islands | 94.3% |
| Palau | 68.7% |
| Puerto Rico | 86.8% |
| Virgin Islands | 53.7% |
Footnotes
* City-based IIS participation rates are reported separately from their respective states; state rates do not include city data in their values.
Reported annual fluctuations in child participation may be due to programmatic and/or technical changes to the immunization information system. The denominator used to calculate child participation numbers are drawn from the 2024 Census estimates for each state and city.
Source: Immunization Information System Annual Report, CY2024
2024 ADULT Participation Table and Map
Percentage of U.S. Adults 19+ years with 1+ Adult Immunizations in IIS
Percentage of adults aged 19+ years participating in an immunization information system (IIS) in the United States (including all 50 states, five cities, the District of Columbia, and eight territories) in 2024.
National coverage: 104.4% (excluding territories)
Map of this data (printable version) [719 KB, 1 page]
| State/City | Percentage |
|---|---|
| Alabama | 83.9% |
| Alaska | 97.9% |
| Arizona | 101.2% |
| Arkansas | 121.2% |
| California | 95.0% |
| Chicago, IL | 118.0% |
| Colorado | 115.7% |
| Connecticut | 99.8% |
| DC | 112.5% |
| Delaware | 119.0% |
| Florida | 122.7% |
| Georgia | 126.3% |
| Hawaii | 73.2% |
| Houston, TX | 69.0% |
| Idaho | 101.2% |
| Illinois* | 112.7% |
| Indiana | 110.5% |
| Iowa | 93.4% |
| Kansas | 110.8% |
| Kentucky | 102.9% |
| Louisiana | 108.0% |
| Maine | 107.3% |
| Maryland | 86.6% |
| Massachusetts | 137.9% |
| Michigan | 105.8% |
| Minnesota | 123.0% |
| Mississippi | 105.0% |
| Missouri | 108.2% |
| Montana | NULL |
| Nebraska | 115.3% |
| Nevada | 132.0% |
| New Hampshire | 83.2% |
| New Jersey | 23.2% |
| New Mexico | 113.1% |
| New York* | 120.9% |
| New York City, NY | 103.7% |
| North Carolina | 76.4% |
| North Dakota | 92.1% |
| Ohio | 103.4% |
| Oklahoma | 100.0% |
| Oregon | 127.6% |
| Pennsylvania* | 107.3% |
| Philadelphia, PA | 126.2% |
| Rhode Island | 91.1% |
| San Antonio, TX | 99.7% |
| South Carolina | 106.2% |
| South Dakota | 120.4% |
| Tennessee | 94.7% |
| Texas* | 96.6% |
| Utah | 111.8% |
| Vermont | 110.8% |
| Virginia | 139.8% |
| Washington | 117.2% |
| West Virginia | 113.3% |
| Wisconsin | 112.3% |
| Wyoming | 113.9% |
| Territories | Percentage |
|---|---|
| American Samoa | 138.4% |
| Guam | 105.7% |
| Marshall Islands | 74.0% |
| Federated States of Micronesia | 94.1% |
| Northern Mariana Islands | 109.5% |
| Palau | 110.1% |
| Puerto Rico | 98.6% |
| Virgin Islands | 73.8% |
Footnotes
* City-based IIS participation rates are reported separately from their respective states; state rates do not include city data in their values.
Reported annual fluctuations in child participation may be due to programmatic and/or technical changes to the immunization information system. The denominator used to calculate child participation numbers are drawn from the 2024 Census estimates for each state and city.
Source: Immunization Information System Annual Report, CY2024