99040 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 99040 is Native American. The majority race/ethnicity attending public schools in 99040 is Native American. The current unemployment level in 99040 is 5.1%.
| Population | 643 |
| Population Growth Rate | 9.42% |
| Population Density | 7 People per Square Mile |
| Total Households | 220 |
| Percentage High Income Households | 1.4% |
| Median Household Income (2021) | $37,450 |
| Average Adjusted Gross Income (2021) | $130,100 |
| Current Unemployment Rate (May 2026) | 5.1% |
| Sales Tax Rate (2025) | 8% |
| Majority Race/Ethnicity | Native American - 82.81% |
| Public School Majority Race/Ethnicity | Native American - 68.62% |
99040 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|
| White | 118 | 15.45% |
| Black | 13 | 1.7% |
| Hispanic | 0 | 0% |
| Asian | 0 | 0% |
| Native American | 631 | 82.59% |
| Hawaiian/Pac. Islander | 2 | 0.26% |
99040 Public School Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|
| White | 37 | 9.69% |
| Black | 8 | 2.09% |
| Hispanic | 31 | 8.12% |
| Asian | 0 | 0% |
| Native American | 304 | 79.58% |
| Hawaiian/Pac. Islander | 2 | 0.52% |
99040 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|
| Less Than 1 Year of College | 20 | 6.87% |
| Bachelor Degree | 19 | 6.53% |
| High School Diploma | 149 | 51.2% |
| No High School Diploma | 2 | 0.69% |
| GED or Alternate | 19 | 6.53% |
| 1 or More Years of College | 61 | 20.96% |
| Associates Degree | 15 | 5.15% |
| Masters Degree | 6 | 2.06% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |
