COVID-19 Vaccination Coverage by Race, Age, and Region in Chicago

Weekly cumulative totals of Chicago residents up to date with COVID-19 vaccines, broken down by six Healthy Chicago Equity Zones, race-ethnicity, and age group. Data is sourced from the Illinois Comprehensive Automated Immunization Registry Exchange (I-CARE) and coverage percentages are calculated using 2020 U.S. Census population estimates. The dataset is maintained by the City of Chicago and was last updated in March 2026.

Use Cases

• Monitor vaccination coverage trends over time based on weekly cumulative totals.
• Analyze disparities in vaccine uptake across race-ethnicity and age groups within specific geographic zones.
• Compare hyperlocal vaccination rates between the six Healthy Chicago Equity Zones (HCEZs).
• Assess the impact of public health initiatives by tracking changes in 'up to date' status as defined by CDC criteria.

Strengths

• Data is disaggregated by three key demographic dimensions: geographic zone (HCEZ), race-ethnicity, and age group.
• Coverage percentages are calculated and capped, with methodology for handling counts exceeding population estimates explicitly described.
• Replaces a previous historical dataset, indicating active maintenance and versioning.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic or reporting bias inherent to the I-CARE registry system.

Provenance

Source

City of Chicago, via the Illinois Comprehensive Automated Immunization Registry Exchange (I-CARE).

Collection Method

Data provided by medical providers based on reported address, race-ethnicity, and age group of vaccinated individuals.

Freshness

Last updated 2026-03-22 04:04:14.424990; freshness should be verified.

Geography

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