US Census Data

Mercer Island vs Union Hill-Novelty Hill

A side-by-side comparison of Mercer Island and Union Hill-Novelty Hill: population, income, housing, and more.

Mercer Island and Union Hill-Novelty Hill are places in Washington. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Mercer Island has the higher population (25,282 vs 23,272 in Union Hill-Novelty Hill). Mercer Island has the higher median household income ($202,359 vs $181,820 in Union Hill-Novelty Hill). Mercer Island has the higher median home value ($1,884,200 vs $1,174,100 in Union Hill-Novelty Hill).

Population, income & housing

Mercer IslandUnion Hill-Novelty Hill
Population25,28223,272
Median age45.8 yrs44.0 yrs
Median household income$202,359$181,820
Median home value$1,884,200$1,174,100
Median gross rent$2,464$2,597
Housing units10,4548,843
Homeownership rate66.0%86.4%
Bachelor's degree or higher78.8%71.8%
Unemployment rate2.5%5.4%

Trends (ACS 5-year, 2019–2023)

Mercer IslandUnion Hill-Novelty Hill
Population25,675 → 25,282 (-1.5%)21,992 → 23,272 (+5.8%)
Median household income$147,566 → $202,359 (+37.1%)$150,239 → $181,820 (+21.0%)
Median home value$1,218,200 → $1,884,200 (+54.7%)$809,000 → $1,174,100 (+45.1%)
Median gross rent$2,162 → $2,464 (+14.0%)$1,989 → $2,597 (+30.6%)

Mercer Island

Population
25,67525,282
Median household income
$147,566$202,359
Median home value
$1,218,200$1,884,200
Median gross rent
$2,162$2,464

Union Hill-Novelty Hill

Population
21,99223,272
Median household income
$150,239$181,820
Median home value
$809,000$1,174,100
Median gross rent
$1,989$2,597

Age & race/ethnicity

Age distribution (share)

Mercer IslandUnion Hill-Novelty Hill
Under 53.9%6.2%
5 to 1718.2%19.9%
18 to 246.0%2.7%
25 to 348.3%8.0%
35 to 4412.1%15.5%
45 to 5416.8%15.1%
55 to 6413.7%12.6%
65 to 749.9%12.2%
75 and over11.1%7.9%

Race & ethnicity (share)

Mercer IslandUnion Hill-Novelty Hill
White (non-Hispanic)65.3%59.2%
Black or African American1.4%1.1%
American Indian & Alaska Native0.0%0.1%
Asian22.2%27.5%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.6%0.9%
Two or more races8.2%6.1%
Hispanic or Latino2.3%5.1%

Educational attainment (age 25+)

Share of adults 25+

Mercer IslandUnion Hill-Novelty Hill
No high school diploma1.9%1.5%
High school graduate5.3%8.9%
Some college or associate's14.0%17.8%
Bachelor's degree38.3%37.5%
Graduate or professional degree40.5%34.3%

Commute to work

How workers get to work (share)

Mercer IslandUnion Hill-Novelty Hill
Drove alone51.6%51.7%
Carpooled4.6%4.1%
Public transit4.6%2.3%
Walked1.6%0.7%
Bicycle0.2%0.1%
Worked from home35.7%40.8%
Other means1.7%0.2%

Housing

Units in structure (share)

Mercer IslandUnion Hill-Novelty Hill
1-unit, detached65.6%81.7%
1-unit, attached0.4%8.9%
2 to 4 units1.0%1.8%
5 to 19 units8.0%2.6%
20 or more units24.2%4.1%
Mobile home & other0.8%0.9%

Poverty & households

Mercer IslandUnion Hill-Novelty Hill
Poverty rate4.6%5.1%
Average household size2.542.72
Mean commute (minutes)2530
Median year structure built19732001

Full profiles

2

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