ZIP 99121 vs ZIP 99131
A side-by-side comparison of ZIP Code 99121 and ZIP Code 99131: population, income, housing, and more.
ZIP 99121 and ZIP 99131 are ZIP Code areas in Washington. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 99121 has the higher population (325 vs 137 in ZIP 99131). ZIP 99121 has the higher median household income ($80,833 vs $36,055 in ZIP 99131). ZIP 99121 has the higher median home value ($420,800 vs $255,000 in ZIP 99131).
Population, income & housing
| ZIP 99121 | ZIP 99131 | |
|---|---|---|
| Population | 325 | 137 |
| Median age | 52.4 yrs | 70.3 yrs |
| Median household income | $80,833 | $36,055 |
| Median home value | $420,800 | $255,000 |
| Housing units | 140 | 138 |
| Homeownership rate | 81.3% | 63.9% |
| Bachelor's degree or higher | 47.5% | 5.9% |
| Unemployment rate | 0.0% | 0.0% |
Trends (ACS 5-year, 2019–2023)
| ZIP 99121 | ZIP 99131 | |
|---|---|---|
| Population | 217 → 325 (+49.8%) | 176 → 137 (-22.2%) |
| Median household income | $30,341 → $80,833 (+166.4%) | $62,188 → $36,055 (-42.0%) |
| Median home value | $204,500 → $420,800 (+105.8%) | $238,500 → $255,000 (+6.9%) |
ZIP 99121
217325
$30,341$80,833
$204,500$420,800
ZIP 99131
176137
$62,188$36,055
$238,500$255,000
Age & race/ethnicity
Age distribution (share)
| ZIP 99121 | ZIP 99131 | |
|---|---|---|
| Under 5 | 0.0% | 0.0% |
| 5 to 17 | 9.8% | 1.5% |
| 18 to 24 | 29.2% | 0.0% |
| 25 to 34 | 1.5% | 1.5% |
| 35 to 44 | 0.0% | 2.2% |
| 45 to 54 | 15.4% | 6.6% |
| 55 to 64 | 20.6% | 8.8% |
| 65 to 74 | 12.0% | 60.6% |
| 75 and over | 11.4% | 19.0% |
Race & ethnicity (share)
| ZIP 99121 | ZIP 99131 | |
|---|---|---|
| White (non-Hispanic) | 96.3% | 99.3% |
| Black or African American | 0.0% | 0.0% |
| American Indian & Alaska Native | 0.9% | 0.0% |
| Asian | 0.0% | 0.0% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.0% |
| Two or more races | 2.8% | 0.7% |
| Hispanic or Latino | 0.0% | 0.0% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 99121 | ZIP 99131 | |
|---|---|---|
| No high school diploma | 1.0% | 2.2% |
| High school graduate | 15.7% | 44.4% |
| Some college or associate's | 35.9% | 47.4% |
| Bachelor's degree | 13.1% | 0.0% |
| Graduate or professional degree | 34.3% | 5.9% |
Commute to work
How workers get to work (share)
| ZIP 99121 | ZIP 99131 | |
|---|---|---|
| Drove alone | 62.5% | 80.0% |
| Carpooled | 27.3% | 0.0% |
| Public transit | 0.0% | 0.0% |
| Walked | 0.0% | 20.0% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 10.2% | 0.0% |
| Other means | 0.0% | 0.0% |
Housing
Units in structure (share)
| ZIP 99121 | ZIP 99131 | |
|---|---|---|
| 1-unit, detached | 97.9% | 65.2% |
| 1-unit, attached | 0.0% | 7.2% |
| 2 to 4 units | 0.0% | 0.0% |
| 5 to 19 units | 0.0% | 0.0% |
| 20 or more units | 0.0% | 0.0% |
| Mobile home & other | 2.1% | 27.5% |
Poverty & households
| ZIP 99121 | ZIP 99131 | |
|---|---|---|
| Poverty rate | 10.2% | 19.7% |
| Average household size | 2.90 | 1.41 |
| Mean commute (minutes) | 59 | — |
| Median year structure built | 1994 | 1995 |