U.S. Counties With Highest Population Density

Guess the U.S. counties that have the highest population per square mile.

Pop. = Population per square mile

District of Columbia excluded

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Last updated: July 11, 2021

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First submitted	July 11, 2021
Times taken	22
Average score	60.0%
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#	County	Pop.	State
1	New York	69,468	NY
2	Kings	35,369	NY
3	Bronx	32,903	NY
4	Queens	20,554	NY
5	San Francisco	17,179	CA
6	Hudson	13,732	NJ
7	Suffolk	12,417	MA
8	Philadelphia	11,379	PA
9	Arlington	8,853	VA
10	Richmond	8,030	NY
11	Essex	6,212	NJ
12	Cook	5,495	IL
13	Union	5,216	NJ
14	Nassau	4,705	NY
15	Milwaukee	3,926	WI