99021 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 99021 is White. The majority race/ethnicity attending public schools in 99021 is White. The current unemployment level in 99021 is 5.1%.
| Population | 10,058 |
| Population Growth Rate | 15.85% |
| Population Density | 163 People per Square Mile |
| Total Households | 3,495 |
| Percentage High Income Households | 3.6% |
| Median Household Income (2021) | $73,866 |
| Average Adjusted Gross Income (2021) | $421,210 |
| Current Unemployment Rate (May 2026) | 5.1% |
| Sales Tax Rate (2025) | 8.9% |
| Majority Race/Ethnicty | White - 94.01% |
| Public School Majority Race/Ethnicty | White - 81.23% |
99021 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 9,579 | 93.47% |
| Black | 32 | 0.31% |
| Hispanic | 517 | 5.04% |
| Asian | 26 | 0.25% |
| Native American | 35 | 0.34% |
| Hawaiian/Pac. Islander | 59 | 0.58% |
99021 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 1,874 | 87.65% |
| Black | 24 | 1.12% |
| Hispanic | 144 | 6.74% |
| Asian | 32 | 1.5% |
| Native American | 12 | 0.56% |
| Hawaiian/Pac. Islander | 52 | 2.43% |
99021 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 338 | 5.66% |
| Bachelor Degree | 1,166 | 19.51% |
| High School Diploma | 1,595 | 26.69% |
| No High School Diploma | 106 | 1.77% |
| GED or Alternate | 257 | 4.3% |
| 1 or More Years of College | 1,171 | 19.59% |
| Associates Degree | 855 | 14.3% |
| Masters Degree | 402 | 6.73% |
| Professional Degree | 77 | 1.29% |
| Doctorate Degree | 10 | 0.17% |