King County, WA

County in Washington, West · ranked on 54 metrics

Rank among US counties

King County, WA is a county in Washington with a population of 2,371,919 (12th of 3,094). It ranks best for Adults with Obesity (%) (12th of 2,916), Bachelor’s Degree or Higher (% of Adults 25+) (42nd of 3,094), Median Household Income (44th of 3,093). It ranks lowest for Median Home Value ($2,000,001 Means $2M or More) (3,070th of 3,092), Average Commute (Minutes) (2,272nd of 3,094).

Population
2.4M
12th highest of 3,094
Density
1,120.9
149th highest of 3,094
Growth since 2020
4.29%
810th highest of 3,094
Area
2,116
261st highest of 3,094
Region
West
Washington

Strengths and weak spotsPercentileWhere a place sits among all places, from 0 to 100. 100 is the best, 50 is the middle, 0 is the worst.More in the glossary →

Percentile on 21 metrics that rank at least half of all US counties, given whether higher or lower is better.

Totals that track populationCounts like “number of burglaries” that mostly reflect how many people live somewhere, so big places rank high or low regardless.More in the glossary →

Best at

Highest percentiles, given whether higher or lower is better

  1. Adults Who Smoke (%)7.1%
    Health of Adults by County (CDC PLACES) · 2023
    tied 5th of 2,916
  2. Adults with No Leisure-Time Exercise (%)13.8%
    Health of Adults by County (CDC PLACES) · 2023
    11th of 2,916
  3. Adults with Obesity (%)22.4%
    Health of Adults by County (CDC PLACES) · 2023
    12th of 2,916
  4. Adults in Fair or Poor Health (%)12.4%
    Health of Adults by County (CDC PLACES) · 2023
    tied 24th of 2,916
  5. Adults with Diabetes (%)7.2%
    Health of Adults by County (CDC PLACES) · 2023
    tied 27th of 2,916
  6. Bachelor’s Degree or Higher (% of Adults 25+)56.7%
    Housing, Income and Commutes by County (Census) · 2024
    42nd of 3,094
  7. Median Household Income$124,746
    Housing, Income and Commutes by County (Census) · 2024
    44th of 3,093
  8. Cooling Degree Days per Year80
    Climate by County (1991–2020 Averages)
    tied 54th of 3,050
  9. Homes with Broadband Internet (%)95.1%
    Housing, Income and Commutes by County (Census) · 2024
    61st of 3,094
  10. Median Income$124,746
    Poorest Counties
    44th of 2,000

Worst at

Lowest percentiles, given whether higher or lower is better

  1. Median Home Value ($2,000,001 Means $2M or More)$859,900
    Housing, Income and Commutes by County (Census) · 2024
    3,070th of 3,092
  2. Median Rent (Monthly; $3,501 Means $3,500 or More)$2,092
    Housing, Income and Commutes by County (Census) · 2024
    3,058th of 3,090
  3. Adults with a Yearly Checkup (%)69.9%
    Health of Adults by County (CDC PLACES) · 2023
    tied 2,632nd of 2,916
  4. Average Commute (Minutes)27.6
    Housing, Income and Commutes by County (Census) · 2024
    2,272nd of 3,094
  5. Heating Degree Days per Year6,290
    Climate by County (1991–2020 Averages)
    2,198th of 3,050
  6. Adults with Depression (%)23.4%
    Health of Adults by County (CDC PLACES) · 2023
    tied 1,277th of 2,916
  7. Adults Who Binge Drink (%)17.2%
    Health of Adults by County (CDC PLACES) · 2023
    tied 1,232nd of 2,916
  8. Poverty Rate (%)8.59%
    Housing, Income and Commutes by County (Census) · 2024
    483rd of 3,094
  9. Adults 18–64 Without Health Insurance (%)6.8%
    Health of Adults by County (CDC PLACES) · 2023
    tied 138th of 2,916
  10. Adults with Frequent Mental Distress (%)14.7%
    Health of Adults by County (CDC PLACES) · 2023
    tied 59th of 2,916

Profile by category

Average percentile per category, from the median line. Select a category to list its metrics.

Strongest category Health (83), weakest Economics (63). Select a category to list its metrics.

Notable facts

Where it ranks first or last among US counties

Never first or last on a widely ranked metric.

Where it is

Shaded by population; select a place to open it

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Similar places

Closest percentiles on 22 widely reported measures from 7 categories, leaving out size and totals

  1. Hamilton County, IN86% similar
    Compared on 16 of 22
  2. El Paso County, CO83% similar
    Compared on 20 of 22
  3. Morris County, NJ82% similar
    Compared on 16 of 22
  4. Middlesex County, MA82% similar
    Compared on 17 of 22
  5. Clark County, WA82% similar
    Compared on 19 of 22

Quick answers

What is the population of King County, WA?
King County, WA has a population of 2,371,919, 12th among 3,094 US counties.
What does King County, WA rank best at?
Among US counties, King County, WA ranks best for Adults with Obesity (%) (12th of 2,916); Bachelor’s Degree or Higher (% of Adults 25+) (42nd of 3,094); Median Household Income (44th of 3,093).
Where does King County, WA rank worst?
King County, WA ranks lowest for Median Home Value ($2,000,001 Means $2M or More) (3,070th of 3,092); Average Commute (Minutes) (2,272nd of 3,094).
How many statistics does Rankodex have for King County, WA?
Rankodex ranks King County, WA on 54 statistics compared with other US counties, compiled from World Population Review and the sources it cites.

Every metric

54 metrics with a value for this place, in 16 topics