US Census Data

ZIP 99117 vs ZIP 99121

A side-by-side comparison of ZIP Code 99117 and ZIP Code 99121: population, income, housing, and more.

ZIP 99117 and ZIP 99121 are ZIP Code areas in Washington. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 99117 has the higher population (578 vs 325 in ZIP 99121). ZIP 99121 has the higher median household income ($80,833 vs $76,667 in ZIP 99117). ZIP 99121 has the higher median home value ($420,800 vs $253,500 in ZIP 99117).

Population, income & housing

ZIP 99117ZIP 99121
Population578325
Median age48.3 yrs52.4 yrs
Median household income$76,667$80,833
Median home value$253,500$420,800
Median gross rent$543
Housing units288140
Homeownership rate86.4%81.3%
Bachelor's degree or higher24.4%47.5%
Unemployment rate2.9%0.0%

Trends (ACS 5-year, 2019–2023)

ZIP 99117ZIP 99121
Population461 → 578 (+25.4%)217 → 325 (+49.8%)
Median household income$53,125 → $76,667 (+44.3%)$30,341 → $80,833 (+166.4%)
Median home value$122,000 → $253,500 (+107.8%)$204,500 → $420,800 (+105.8%)
Median gross rent$609 → $543 (-10.8%)

ZIP 99117

Population
461578
Median household income
$53,125$76,667
Median home value
$122,000$253,500
Median gross rent
$609$543

ZIP 99121

Population
217325
Median household income
$30,341$80,833
Median home value
$204,500$420,800

Age & race/ethnicity

Age distribution (share)

ZIP 99117ZIP 99121
Under 50.2%0.0%
5 to 1724.6%9.8%
18 to 245.9%29.2%
25 to 344.2%1.5%
35 to 4412.5%0.0%
45 to 5411.9%15.4%
55 to 6413.3%20.6%
65 to 7412.5%12.0%
75 and over15.1%11.4%

Race & ethnicity (share)

ZIP 99117ZIP 99121
White (non-Hispanic)97.6%96.3%
Black or African American0.0%0.0%
American Indian & Alaska Native1.4%0.9%
Asian0.0%0.0%
Native Hawaiian & Pacific Islander0.2%0.0%
Some other race0.0%0.0%
Two or more races0.9%2.8%
Hispanic or Latino0.0%0.0%

Educational attainment (age 25+)

Share of adults 25+

ZIP 99117ZIP 99121
No high school diploma6.5%1.0%
High school graduate30.4%15.7%
Some college or associate's38.7%35.9%
Bachelor's degree18.0%13.1%
Graduate or professional degree6.5%34.3%

Commute to work

How workers get to work (share)

ZIP 99117ZIP 99121
Drove alone79.2%62.5%
Carpooled9.6%27.3%
Public transit0.0%0.0%
Walked2.5%0.0%
Bicycle0.0%0.0%
Worked from home8.6%10.2%
Other means0.0%0.0%

Housing

Units in structure (share)

ZIP 99117ZIP 99121
1-unit, detached68.1%97.9%
1-unit, attached1.4%0.0%
2 to 4 units1.7%0.0%
5 to 19 units1.7%0.0%
20 or more units0.0%0.0%
Mobile home & other27.1%2.1%

Poverty & households

ZIP 99117ZIP 99121
Poverty rate2.8%10.2%
Average household size2.312.90
Mean commute (minutes)3659
Median year structure built19911994

Full profiles

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ZIP 99117 vs ZIP 99121: Compare Population & Demographics | US Census Data