COVID-19 Daily County Metrics Archive for Connecticut

Daily COVID-19 metrics at the county level, published by the State of Connecticut. The dataset includes cumulative case counts and 7-day case totals, with daily updates historically posted at 3pm. Data collection ceased on June 1, 2023, following the end of the federal public health emergency.

Use Cases

• Analyze trends in cumulative_cases and cases_7days to model county-level outbreak dynamics.
• Track changes in cumulative_cases to identify days with large data corrections from historic reporting.
• Compare cases_7days across counties to assess regional transmission rates during the pandemic period.

Strengths

• Data sourced from the State of Connecticut's Department of Public Health, an authoritative public health agency.
• Provides daily temporal granularity for tracking pandemic progression.
• Includes specific metrics like cumulative_cases and cases_7days with documented definitions.

Limitations

• Data is no longer updated as of June 1, 2023, limiting analysis to historical periods.
• Potential for data anomalies due to delayed case reporting and correction file submissions affecting daily counts.
• Excludes test positivity metrics after May 11, 2023, due to the expiration of federal reporting guidance.

Provenance

Source

State of Connecticut Department of Public Health.

Collection Method

Daily reports compiled from multiple sources, including external partners, and posted to an Open Data Portal.

Time Range

Covers the pandemic period up to June 1, 2023.

Freshness

Archive; last updated on the platform 2025-06-21, but data collection ended 2023-06-01.

Geography

County-level data for the state of Connecticut.