99166 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Washington based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 99166 is White. The majority race/ethnicity attending public schools in 99166 is White. The current unemployment level in 99166 is 5.1%.
| Population | 2,936 |
| Population Growth Rate | -5.17% |
| Population Density | 8 People per Square Mile |
| Total Households | 1,439 |
| Percentage High Income Households | 1.7% |
| Median Household Income (2021) | $50,066 |
| Average Adjusted Gross Income (2021) | $290,220 |
| Current Unemployment Rate (May 2026) | 5.1% |
| Sales Tax Rate (2025) | 8.4% |
| Majority Race/Ethnicity | White - 97.05% |
| Public School Majority Race/Ethnicity | White - 82.11% |
99166 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|
| White | 2,530 | 95.91% |
| Black | 15 | 0.57% |
| Hispanic | 28 | 1.06% |
| Asian | 4 | 0.15% |
| Native American | 30 | 1.14% |
| Hawaiian/Pac. Islander | 31 | 1.18% |
99166 Public School Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|
| White | 335 | 88.62% |
| Black | 0 | 0% |
| Hispanic | 23 | 6.08% |
| Asian | 6 | 1.59% |
| Native American | 14 | 3.7% |
| Hawaiian/Pac. Islander | 0 | 0% |
99166 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|
| Less Than 1 Year of College | 290 | 12.42% |
| Bachelor Degree | 191 | 8.18% |
| High School Diploma | 779 | 33.36% |
| No High School Diploma | 72 | 3.08% |
| GED or Alternate | 186 | 7.97% |
| 1 or More Years of College | 405 | 17.34% |
| Associates Degree | 277 | 11.86% |
| Masters Degree | 87 | 3.73% |
| Professional Degree | 48 | 2.06% |
| Doctorate Degree | 0 | 0% |
