Mercer Island, WA vs Seattle, WA

Side-by-side comparison from the latest government data.

MetricMercer Island, WASeattle, WA
Population25,307754,195
Median Household Income$219,069$123,860
Median Rent$2,502/mo$2,030/mo
Median Home Value$2,000,000+$938,600
Cost of Living (US = 100)111111
Renters Paying 30%+ of Income42.7%42.4%
Poverty Rate3.8%9.9%
Unemployment Rate4.5%4.2%
Violent Crime Rate /100k68706
Property Crime Rate /100k9534,460
Median AQI4343
Good AQI Days /yr245245
Summer Highs75°F75°F
Winter Lows37°F37°F
Snowfall4 in/yr4 in/yr
Avg Commute23.6 min26 min
Hospitals—9
Avg Hospital Rating—3.8 / 5
Students per Teacher18.816.9
College Degree Rate81.4%68.4%
Foreign-Born %26.4%20.2%
Population Growth (2020–2025)-1.3%+6.5%

Green = clearly better (more than 5% apart). Population, growth, weather, hospital count and foreign-born share aren’t scored.
The Census tops out at $2,000,000+ for home value; it doesn't publish exact figures above that. Two capped values can't be compared, so neither is marked better.