US Census Data

ZIP 99111 vs ZIP 99121

A side-by-side comparison of ZIP Code 99111 and ZIP Code 99121: population, income, housing, and more.

ZIP 99111 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 99111 has the higher population (4,049 vs 325 in ZIP 99121). ZIP 99121 has the higher median household income ($80,833 vs $66,333 in ZIP 99111). ZIP 99121 has the higher median home value ($420,800 vs $264,300 in ZIP 99111).

Population, income & housing

ZIP 99111ZIP 99121
Population4,049325
Median age41.8 yrs52.4 yrs
Median household income$66,333$80,833
Median home value$264,300$420,800
Median gross rent$983
Housing units1,920140
Homeownership rate72.9%81.3%
Bachelor's degree or higher29.6%47.5%
Unemployment rate3.2%0.0%

Trends (ACS 5-year, 2019–2023)

ZIP 99111ZIP 99121
Population4,234 → 4,049 (-4.4%)217 → 325 (+49.8%)
Median household income$52,246 → $66,333 (+27.0%)$30,341 → $80,833 (+166.4%)
Median home value$172,500 → $264,300 (+53.2%)$204,500 → $420,800 (+105.8%)
Median gross rent$721 → $983 (+36.3%)

ZIP 99111

Population
4,2344,049
Median household income
$52,246$66,333
Median home value
$172,500$264,300
Median gross rent
$721$983

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 99111ZIP 99121
Under 54.9%0.0%
5 to 1717.2%9.8%
18 to 243.9%29.2%
25 to 3410.4%1.5%
35 to 4416.0%0.0%
45 to 549.6%15.4%
55 to 6417.5%20.6%
65 to 749.3%12.0%
75 and over11.3%11.4%

Race & ethnicity (share)

ZIP 99111ZIP 99121
White (non-Hispanic)82.4%96.3%
Black or African American1.2%0.0%
American Indian & Alaska Native0.7%0.9%
Asian0.8%0.0%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race2.2%0.0%
Two or more races4.6%2.8%
Hispanic or Latino8.1%0.0%

Educational attainment (age 25+)

Share of adults 25+

ZIP 99111ZIP 99121
No high school diploma7.4%1.0%
High school graduate22.2%15.7%
Some college or associate's40.7%35.9%
Bachelor's degree19.2%13.1%
Graduate or professional degree10.4%34.3%

Commute to work

How workers get to work (share)

ZIP 99111ZIP 99121
Drove alone79.9%62.5%
Carpooled8.9%27.3%
Public transit0.0%0.0%
Walked1.5%0.0%
Bicycle0.6%0.0%
Worked from home6.9%10.2%
Other means2.1%0.0%

Housing

Units in structure (share)

ZIP 99111ZIP 99121
1-unit, detached68.4%97.9%
1-unit, attached0.6%0.0%
2 to 4 units7.5%0.0%
5 to 19 units7.0%0.0%
20 or more units6.4%0.0%
Mobile home & other10.2%2.1%

Poverty & households

ZIP 99111ZIP 99121
Poverty rate9.0%10.2%
Average household size2.342.90
Mean commute (minutes)2059
Median year structure built19501994

Full profiles

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ZIP 99111 vs ZIP 99121: Compare Population & Demographics | US Census Data