New River Analytics · County Accountability Report
County Accountability Report — Wirt County, WV
Meets 1 of 3 IAAO standards1 Executive summary
In Wirt County, D. Keith Wilson, Jr.’s office assesses residential property with a coefficient of dispersion (COD) of 34.8 — a measure of how evenly comparable homes are valued — against an IAAO target of 15 or below, where the county ranks 43rd of 54 for uniformity. Vertical equity (PRD 1.148, PRB -0.0458) shows a regressive tilt — lower-value homes carry a heavier assessment burden than high-value homes. Of the roll, 13.7% is stale (≥20% uncaptured market movement); the county ranks 30th of 55 for reappraisal currency. Overall the office meets 1 of 3 iaao standards — reported per standard, with no single overall grade.
2 Uniformity — Coefficient of Dispersion (COD)
3 Vertical equity — PRD & PRB
4 Reappraisal cadence
5 Level of assessment (context only — not graded)
6 Assessor tenure scorecard
Each graded assessor era, scored on its own roll against the same IAAO standards. WV assessors serve four-year terms; the seat is on the ballot in November of a term’s end year.
7 Methodology & integrity
Real elected officials. Level (median ratio) is confounded by the statewide reappraisal cycle and the housing market; COD/uniformity is the more assessor-attributable signal. Not a judgment of any individual.
Grades rest on a direct, time-matched sales-ratio study: the assessor’s own appraised value in the sale year divided by the actual arms-length sale price. There is no model and no prediction. Grading gates: an era is graded only with ≥100 attributable sales across ≥2 distinct sale years; the current roll year (2025) is excluded until it settles.
Confidence tiers (by attributed sales): High ≥ 1,000 · Medium 300–999 · Low 100–299 · Insufficient < 100.
Targets: COD ≤ 15 (IAAO, improved residential); PRD 0.98–1.03 (IAAO); PRB ±0.05 (IAAO); cadence < 15% of roll stale; level context only — confounded by reappraisal cycle + market, not graded.
Data sources: county assessor records — appraised values
from parcel_tax_history, arms-length (validity-code 0) residential (class R)
sales from parcel_sales_history. This dataset contains no billed tax dollars.
These are assessment-practice metrics, not a judgment of any individual, computed the same way for every county. Full detail: Methodology & Data →