Influenza Vaccination Coverage by Demographic Group and Chicago Equity Zone

Weekly cumulative data from July through June each season tracks Chicago residents up to date with influenza vaccines. The dataset is organized by Healthy Chicago Equity Zone (HCEZ), race-ethnicity, and age group, with coverage percentages calculated using 2020 U.S. Census population estimates. It is published by the City of Chicago and sourced from the Illinois Comprehensive Automated Immunization Registry Exchange (I-CARE).

Use Cases

• Analyze vaccination coverage disparities based on race-ethnicity and age group within specific geographic zones.
• Monitor weekly cumulative vaccination progress across six Healthy Chicago Equity Zones (HCEZs).
• Identify geographic areas with low vaccination uptake for targeted public health campaigns.
• Assess the impact of community-led health equity initiatives based on HCEZ-level data.

Strengths

• Data is disaggregated by six geographic zones (HCEZs), race-ethnicity, and age group.
• Coverage percentages are calculated using 2020 U.S. Decennial Census population estimates.
• Weekly cumulative totals allow for tracking progress throughout the influenza season.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Influenza vaccine administration is not universally required to be reported in Illinois, which may lead to underestimation of coverage.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

City of Chicago, Chicago Department of Public Health.

Collection Method

Data is provided by medical providers to the Illinois Comprehensive Automated Immunization Registry Exchange (I-CARE).

Time Range

Covers the influenza season defined as beginning of July (MMWR week 27) through the end of the following June (MMWR week 26).

Freshness

Last updated 2026-03-22 04:05:45.301031; freshness should be verified.

Geography

City of Chicago, Illinois, USA, divided into six Healthy Chicago Equity Zones (HCEZs).