
Author
Logan Johnson
Founder & Data Editor
Builder and data editor of the ByCounty Network. I publish county-level data sourced exclusively from federal agencies — and I am personally accountable for every methodology decision on this site.
Logan Johnson is the founder and data editor of the ByCounty Network — a family of independent data-journalism sites that publish county-level statistics from primary U.S. government sources: U.S. Census ACS, FBI UCR, CDC, FEMA NRI, NCES, EPA, NOAA, USDA, and USASpending.gov.
His role is the data-editor role, not the subject-matter-expert role. He designs the data pipelines that pull each dataset, sets the methodology behind every composite score and ranking, spot-checks AI-generated narratives against the underlying statistics before publication, and signs off on every methodology change. He is not a CPA, physician, criminologist, real-estate broker, or other domain-credentialed professional. The site is a transparent data utility, not a professional advisory service.
When a feature genuinely requires domain expertise — a public-health analyst weighing in on CDC measure choice, a CPA reviewing a property-tax explainer — Logan recruits a named co-byline reviewer rather than fabricating credentials. The reviewer commitment for each site is documented on that site's editorial-standards page, including the recruit status when no domain reviewer is currently in place.
Outside the network, Logan has spent the last several years building data infrastructure for logistics and operations teams — work that translates directly into the pipeline discipline applied here: every statistic on the site is traceable to a primary source, every methodology decision is documented, and every page lists a "Last reviewed" date.
Coverage areas
- CDC County Health Rankings & Roadmaps
- CMS NPPES provider density
- EPA AirNow air-quality data
- Census ACS demographic baselines
- AI-narrative review and data-editor methodology
Articles by Logan on Health By County
Understanding County Health Rankings: What the Data Reveals
The 25 healthiest counties in America ranked by CDC health data. Analysis of life expectancy, insurance coverage, and provider access patterns across all US counties.
Healthcare Access by County: Insurance, Providers, and Outcomes
How insurance coverage and provider density vary across US counties. Analysis of uninsured rates, primary care access, and the rural provider shortage.
The Link Between County Income and Health Outcomes
How income levels correlate with life expectancy, insurance coverage, and health scores at the county level. Data-driven analysis of the income-health connection.
Rural vs Urban Health Disparities: A County-Level Analysis
How health outcomes differ between rural and urban counties across America. Analysis of provider access, insurance coverage, and health metrics by community type.