Open Data

The accountability findings, made citable. Download the underlying data as clean CSV files — built from county assessor records and WV GIS. Free for journalists, researchers, and campaigns to reuse with attribution.

County Accountability Scorecard
Every WV county, graded against IAAO standards: median ratio, COD (uniformity), PRD/PRB (vertical equity), reappraisal staleness, standards met, and confidence — with the current assessor.
55 counties · CSV
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Assessor Eras
Per-assessor graded eras: who held office, the years covered, sample size, median ratio, COD, PRD, and PRB. Low-sample eras are suppressed, not published.
104 eras · CSV
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Equalization Ratio Study
Per-county, per-class ratio study over the standard sales window: sales count, median assessment ratio, and the IAAO uniformity / vertical-equity metrics (COD, PRD, PRB).
161 rows · CSV
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Levy Rates
District levy rates by county and tax year for tax classes I, II, and III/IV — the millage applied to assessed value to compute the tax bill.
302 rows · CSV
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About this data & license

Source: West Virginia county assessor records and the WV GIS Technical Center. Datasets contain appraised values and assessment-quality metrics only — no billed tax dollars and no personal information.

How the metrics are computed (COD, PRD, PRB, ratio studies, grading thresholds, and confidence tiers) is documented in our methodology and accountability methodology.

 CC BY 4.0 Free to reuse, republish, and remix — please attribute New River Analytics and link back where practical.