Which has more people, Cook County, IL or San Diego County, CA?

Cook County, IL has a population of 5,200,459 (2nd of 3,094 US counties) and San Diego County, CA has 3,276,954 (5th of 3,094).

How do Cook County, IL and San Diego County, CA compare on Median Household Income?

Median Household Income: Cook County, IL $83,498 (467th of 3,093), San Diego County, CA $106,268 (117th of 3,093) among US counties. San Diego County, CA ranks better.

How do Cook County, IL and San Diego County, CA compare on Poverty Rate (%)?

Poverty Rate (%): Cook County, IL 13.5% (1,614th of 3,094), San Diego County, CA 10.3% (847th of 3,094) among US counties. San Diego County, CA ranks better.

Where does Cook County, IL beat San Diego County, CA most clearly?

Cook County, IL ranks far ahead on Adults with a Yearly Checkup (%) (Health of Adults by County (CDC PLACES)): 76.5% vs 71.9%; Cooling Degree Days per Year (Climate by County (1991–2020 Averages)): 833 vs 1,413; Median Home Value (Capped at $2M) (Housing, Income and Commutes by County (Census)): $324,500 vs $854,700.

Where does San Diego County, CA beat Cook County, IL most clearly?

San Diego County, CA ranks far ahead on Heating Degree Days per Year (Climate by County (1991–2020 Averages)): 2,019 vs 6,207; Adults 18–64 Without Health Insurance (%) (Health of Adults by County (CDC PLACES)): 8.7% vs 12.0%; Average Commute (Minutes) (Housing, Income and Commutes by County (Census)): 25.5 vs 31.5.

Cook County, IL vs San Diego County, CA

San Diego County, CA comes out ahead of Cook County, IL on 23 of 33 statistics where one end is better, to 10. San Diego County, CA leads on Economics and Health.

33 statistics with a better end, compared

Each counts once for the place that ranks better. Totals that mostly track population are left out.

Cook County, IL

Wins: 10
Avg. percentile: 44
Categories led: 0

San Diego County, CA

Wins: 23
Avg. percentile: 56
Categories led: 2

At a glance

Headline statistics, each ranked among all US counties.

Statistic	Cook County, IL	San Diego County, CA
Population	5,200,459 2nd of 3,094	3,276,954 5th of 3,094
Median Household IncomeHousing, Income and Commutes by County (Census)	$83,498 467th of 3,093	$106,268 117th of 3,093
Poverty Rate (%)Housing, Income and Commutes by County (Census)	13.5% 1,614th of 3,094	10.3% 847th of 3,094
Unemployment Rate (%)Unemployment Rate by County (BLS)	4.8% tied 2,337th of 3,094	4.6% tied 2,157th of 3,094
Adults Sleeping Under 7 Hours (%)Health of Adults by County (CDC PLACES)	36.0% tied 1,159th of 3,094	34.5% tied 807th of 3,094
Average Commute (Minutes)Housing, Income and Commutes by County (Census)	31.5 2,768th of 3,094	25.5 1,878th of 3,094
Heating Degree Days per YearClimate by County (1991–2020 Averages)	6,207 tied 2,163rd of 3,050	2,019 tied 280th of 3,050
Median Air Quality IndexAir Quality by County (EPA)	53 tied 926th of 960	67 tied 953rd of 960

By category

Average percentile on each category's widely ranked statistics.

EconomicsSan Diego County, CA · 9 statistics
HealthSan Diego County, CA · 11 statistics

Biggest differences

The 22 statistics where their rankings differ most, among rankings of at least 1,547 US counties.

Statistic	Cook County, IL	San Diego County, CA
Heating Degree Days per YearClimate by County (1991–2020 Averages)	6,207 tied 2,163rd of 3,050	2,019 tied 280th of 3,050
Adults with a Yearly Checkup (%)Health of Adults by County (CDC PLACES)	76.5% tied 1,057th of 2,916	71.9% tied 2,313th of 2,916
Adults 18–64 Without Health Insurance (%)Health of Adults by County (CDC PLACES)	12.0% tied 1,891st of 2,916	8.7% tied 759th of 2,916
Average Commute (Minutes)Housing, Income and Commutes by County (Census)	31.5 2,768th of 3,094	25.5 1,878th of 3,094
Adults Who Binge Drink (%)Health of Adults by County (CDC PLACES)	19.0% tied 2,059th of 2,916	17.2% tied 1,232nd of 2,916
Cooling Degree Days per YearClimate by County (1991–2020 Averages)	833 tied 1,089th of 3,050	1,413 tied 1,919th of 3,050
Adults with Diabetes (%)Health of Adults by County (CDC PLACES)	10.7% tied 1,416th of 2,916	9.4% tied 638th of 2,916
Poverty Rate (%)Housing, Income and Commutes by County (Census)	13.5% 1,614th of 3,094	10.3% 847th of 3,094
Homes with Broadband Internet (%)Housing, Income and Commutes by County (Census)	90.6% 684th of 3,094	94.9% 71st of 3,094
Median IncomePoorest Counties	$83,498 467th of 2,000	$106,268 117th of 2,000
Median Home Value (Capped at $2M)Housing, Income and Commutes by County (Census)	$324,500 2,582nd of 3,092	$854,700 tied 3,068th of 3,092
Adults with Depression (%)Health of Adults by County (CDC PLACES)	19.0% tied 187th of 2,916	21.2% tied 560th of 2,916
Adults with No Leisure-Time Exercise (%)Health of Adults by County (CDC PLACES)	22.8% tied 620th of 2,916	20.4% tied 276th of 2,916
Adults Sleeping Under 7 Hours (%)Health of Adults by County (CDC PLACES)	36.0% tied 1,159th of 3,094	34.5% tied 807th of 3,094
Median Household IncomeHousing, Income and Commutes by County (Census)	$83,498 467th of 3,093	$106,268 117th of 3,093
Adults with Frequent Mental Distress (%)Health of Adults by County (CDC PLACES)	15.4% tied 162nd of 2,916	16.6% tied 433rd of 2,916
Median Rent (Monthly, Capped at $3,501)Housing, Income and Commutes by County (Census)	$1,435 2,807th of 3,090	$2,246 3,076th of 3,090
Adults with Obesity (%)Health of Adults by County (CDC PLACES)	31.0% tied 269th of 2,916	25.4% tied 55th of 2,916
Unemployment Rate (%)Unemployment Rate by County (BLS)	4.8% tied 2,337th of 3,094	4.6% tied 2,157th of 3,094
Adults Who Smoke (%)Health of Adults by County (CDC PLACES)	11.2% tied 180th of 2,916	10.1% tied 87th of 2,916
Adults in Fair or Poor Health (%)Health of Adults by County (CDC PLACES)	18.7% tied 1,128th of 2,916	18.4% tied 1,045th of 2,916
Bachelor’s Degree or Higher (% of Adults 25+)Housing, Income and Commutes by County (Census)	42.7% 205th of 3,094	43.2% 196th of 3,094

See every statistic they shareSearch and sort all of them, adjust for cost of living or population, or add up to two more places.

Quick answers

Which is better, Cook County, IL or San Diego County, CA?: San Diego County, CA comes out ahead of Cook County, IL on 23 of 33 statistics where one end is better, to 10. San Diego County, CA leads on Economics and Health. Statistics where neither end is better, and totals that mostly track population, are not counted.
Which has more people, Cook County, IL or San Diego County, CA?: Cook County, IL has a population of 5,200,459 (2nd of 3,094 US counties) and San Diego County, CA has 3,276,954 (5th of 3,094).
How do Cook County, IL and San Diego County, CA compare on Median Household Income?: Median Household Income: Cook County, IL $83,498 (467th of 3,093), San Diego County, CA $106,268 (117th of 3,093) among US counties. San Diego County, CA ranks better.
How do Cook County, IL and San Diego County, CA compare on Poverty Rate (%)?: Poverty Rate (%): Cook County, IL 13.5% (1,614th of 3,094), San Diego County, CA 10.3% (847th of 3,094) among US counties. San Diego County, CA ranks better.
Where does Cook County, IL beat San Diego County, CA most clearly?: Cook County, IL ranks far ahead on Adults with a Yearly Checkup (%) (Health of Adults by County (CDC PLACES)): 76.5% vs 71.9%; Cooling Degree Days per Year (Climate by County (1991–2020 Averages)): 833 vs 1,413; Median Home Value (Capped at $2M) (Housing, Income and Commutes by County (Census)): $324,500 vs $854,700.
Where does San Diego County, CA beat Cook County, IL most clearly?: San Diego County, CA ranks far ahead on Heating Degree Days per Year (Climate by County (1991–2020 Averages)): 2,019 vs 6,207; Adults 18–64 Without Health Insurance (%) (Health of Adults by County (CDC PLACES)): 8.7% vs 12.0%; Average Commute (Minutes) (Housing, Income and Commutes by County (Census)): 25.5 vs 31.5.

More matchups

Other comparisons with Cook County, IL or San Diego County, CA.

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