State comparison · 2025
Dental Hygienists salary: South Dakota vs Washington
Dental Hygienists in Washington earn a median of $131,160. In South Dakota, $92,210. After cost-of-living, the gap is 15.1% — not 29.7%.
Nominal pay gap
-29.7%
South Dakota vs Washington
COL-adjusted gap
-15.1%
After BEA Regional Price Parities
South Dakota
Dental Hygienists
- Median
- $92,210
- p25
- $83,230
- p75
- $96,230
- p10
- $73,480
- p90
- $98,290
- COL index (BEA RPP)100 = US average
- 88.6
Washington
Dental Hygienists
- Median
- $131,160
- p25
- $122,000
- p75
- $134,670
- p10
- $107,090
- p90
- $162,050
- COL index (BEA RPP)100 = US average
- 107.0
BLS Occupational Employment and Wage Statistics, May 2025. Cost-of-living adjustment from BEA Regional Price Parities (overall index). Hiring velocity from DOL OFLC public disclosure data, recent 180 days vs prior. See methodology.