99338 can be classified socioeconomically as 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 99338 is White. The majority race/ethnicity attending public schools in 99338 is White. The current unemployment level in 99338 is 5.1%.
| Population | 18,312 |
| Population Growth Rate | 8.13% |
| Population Density | 104 People per Square Mile |
| Total Households | 3,878 |
| Percentage High Income Households | 6.3% |
| Median Household Income (2021) | $118,186 |
| Average Adjusted Gross Income (2021) | $447,280 |
| Current Unemployment Rate (May 2026) | 5.1% |
| Sales Tax Rate (2025) | 8.8% |
| Majority Race/Ethnicity | White - 84.94% |
| Public School Majority Race/Ethnicity | White - 61.53% |
99338 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|
| White | 15,004 | 84.94% |
| Black | 380 | 2.15% |
| Hispanic | 1,967 | 11.14% |
| Asian | 259 | 1.47% |
| Native American | 55 | 0.31% |
| Hawaiian/Pac. Islander | 0 | 0% |
99338 Public School Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|
| White | 4,062 | 65.09% |
| Black | 110 | 1.76% |
| Hispanic | 1,914 | 30.67% |
| Asian | 116 | 1.86% |
| Native American | 23 | 0.37% |
| Hawaiian/Pac. Islander | 16 | 0.26% |
99338 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|
| Less Than 1 Year of College | 460 | 6.25% |
| Bachelor Degree | 2,147 | 29.18% |
| High School Diploma | 1,044 | 14.19% |
| No High School Diploma | 66 | 0.9% |
| GED or Alternate | 333 | 4.53% |
| 1 or More Years of College | 1,432 | 19.46% |
| Associates Degree | 628 | 8.53% |
| Masters Degree | 920 | 12.5% |
| Professional Degree | 165 | 2.24% |
| Doctorate Degree | 164 | 2.23% |
