| Field | Detail | Source |
| Full Name | Ross W. Nielson | T1 |
| Residence | 779 S Military Rd, Winlock, WA 98596. Lifelong Washington resident, lived in the Winlock area for over 25 years. Born and raised in Washington; previously lived in Seattle and Bellingham before moving to Lewis County. | T1 |
| Party | Republican | T1 |
| Family | Married 30+ years with four children, all of whom graduated from Winlock High School. | T2 |
| Employment | Various retail management positions (prior to assessment career); Successfully operated a small business; Employee, Winlock School District; Independent Fee Appraiser, real estate appraiser for nearly 10 years in both public and private sectors; Appraiser, Lewis County Assessor's Office (7+ years). Promoted to Sales Analyst, responsible for annually valuing five-sixths of the county through statistical updates.; Lewis County Assessor (elected November 2022, took office January 2023). Currently serving first term, seeking re-election 2026. | T2 |
1 Election History
| Year | Race | Result |
| 2022 | Lewis County Assessor | Won primary, 10,860 votes (55.28%) vs Tom Crowson (R) 8,435 (42.94%) |
| 2022 | Lewis County Assessor (General) | Won general, 15,829 votes (52.72%) vs Tom Crowson (R) 13,736 (45.75%) |
2 Political Positions
| Topic | Position | Source |
| Property Assessment Methodology | Emphasizes maintaining accuracy and proper procedures over change for its own sake. Describes the assessor role as 'a rudder on the ship ensuring correctness.' Committed to open, transparent office operations and treating all constituents respectfully. Prioritizes education and listening to property owners. | T2 |
| Fiscal Responsibility | Committed to saving taxpayers money and fiscal responsibility in office operations. Emphasizes hands-on management, states that 'having a figurehead leading the department without daily participation' is unacceptable. | T2 |
| Property Tax Exemptions | Advocated for expanding property tax exemptions to more Lewis County residents, particularly seniors and those on fixed incomes, as qualifying thresholds were updated. | T2 |
| Industrial Property Valuation | Inherited significant backlog of court and appeals cases from predecessor Dianne Dorey. Worked to resolve major industrial property value disputes including settlements with Darigold (~$70M reduction), Hardel Mutual Plywood, Sierra Pacific Industries, and Cardinal CG Company (2023-2025). | T2 |
3 Campaign Finance (PDC T1 Data)
| Metric | Value | Source |
| Filing Entity | No WA PDC committee registration located statewide for the 2026 cycle as of 2026-06-21, uncontested race; under-threshold/mini-filer or non-filer. Source: WA PDC SODA API (data.wa.gov), as_of 2026-06-21. | T1 |
4 Endorsements
- Lewis County Republican Party
5 Notable Public Statements
Upon taking office, Nielson inherited a significant backlog of court and appeals cases related to property value assessments. He worked hard to open communication lines and to build trusted relationships to achieve equitable valuations across the county.
Campaign announcement for 2026 re-election bid (2026-05-01)
“Having a figurehead leading the department without daily participation is unacceptable.”
Campaign statement emphasizing hands-on management style (2026-05-01)
6 Vulnerability Assessment
3 sourced findings. All sourced at T1 (Official Record) or T2 (Multi-Source Media) per clearthemud provenance model. No T3/T4 claims included.
Finding 6.1: Darigold settlement cut the assessed value about $70M with a $1.2M refund MODERATE
- What happened
- Lewis County agreed to a Darigold property value settlement signed in August 2025 that reduced the assessed value of the company's main Chehalis production facility by approximately $70 million, with retroactive changes stretching back to 2021. The county refunded Darigold approximately $1.2 million, and total refunds across all tax districts exceeded $2 million, including payments from the Chehalis School District, Port of Chehalis, City of Chehalis, and the State of Washington. Lewis County Treasurer Arny Davis stated the settlement took several smaller taxing districts 'in the red.' Nielson inherited these disputes from predecessor Dianne Dorey, and the settlements resulted in $1.2M in refunds to Darigold and over $2M total across districts.
- Source tier
- T2
- Political impact
- Moderate
- Defense
- Nielson inherited the lawsuits and appeals when he took office in 2023 following Dorey's 47-year tenure. He noted that Darigold's reluctance to disclose facility changes (including the age of equipment) contributed to overassessment. The settlements resolved legacy disputes and were negotiated based on new information that became available under his administration.
- https://www.chronline.com/stories/years-of-substantial-property-tax-settlements-take-toll-in-lewis-county,391520
- https://www.chronline.com/stories/lewis-county-treasurer-talks-darigold-property-value-assessment-fallout-at-port-of-chehalis-meeting,388352
Finding 6.2: Record number of property-value appeals under his tenure MODERATE
- What happened
- Under Nielson's tenure, the Lewis County Assessor's Office received a record number of property value appeals, with nearly 1,000 residents petitioning for reduced valuations. Some property owners reported assessed values increasing by $100,000 or more in a single year, with at least one resident reporting a $300,000 increase. Short-term rental owners separately raised concerns about property tax increases at a county commissioners meeting in 2025. Rising property values are driven by market forces statewide, and residents challenged the assessment methodology through formal appeals.
- Source tier
- T2
- Political impact
- Moderate
- Defense
- Property values are assessed at 100% of market value per state law (RCW 84.40.030). Lewis County became an annual revaluation county in 2012, with one-sixth physically inspected and five-sixths statistically updated each year. Rising values reflect genuine market appreciation driven by a 'run on land' in rural Washington. The Board of Equalization exists as an independent appeals body, and Nielson has emphasized open communication with property owners.
- https://www.chronline.com/stories/nearly-1000-residents-feud-with-lewis-county-over-soaring-assessed-property-values,320247
- https://www.chronline.com/stories/a-run-on-land-assessor-breaks-down-property-valuations-as-landowners-express-sticker-shock,330647
- https://www.chronline.com/stories/lewis-county-short-term-rental-owners-lament-property-tax-increases-at-recent-county-commissioners,377009
Finding 6.3: Industrial property settlements between 2023 and 2025 LOW
- What happened
- Beyond Darigold, Lewis County agreed to property value settlements with Hardel Mutual Plywood Corporation, Sierra Pacific Industries, and Cardinal CG Company between 2023 and 2025, and these settlements resulted in revenue shortfalls for local taxing districts.
- Source tier
- T2
- Political impact
- Low
- Defense
- These settlements were negotiated to resolve inherited disputes and reflected corrections based on new facility information. Industrial property valuation is inherently complex, requiring specialized knowledge of equipment depreciation and manufacturing processes. Nielson has worked to build trusted relationships with industrial property owners to improve future assessment accuracy.
- https://www.chronline.com/stories/years-of-substantial-property-tax-settlements-take-toll-in-lewis-county,391520
7 Source Verification
- Data Sources
- WA SOS, WA PDC, local media, public records
- Collection Date
- 2026-06-24
- Highest Tier
- T1 (Official Record)
- Methodology
- OSINT deep-dive using exclusively public-record sources. All findings at T1 or T2. No T3/T4 claims included.