Most Populous U.S. Counties A-Z

Name the most populated U.S. county that starts with each letter of the alphabet.
Using 2024 Census Bureau estimates
Quiz by
FreeStater
Rate:
Last updated: December 15, 2025
You have not attempted this quiz yet.
First submittedDecember 15, 2025
Times taken27
Average score68.0%
Report this quizReport
4:00
Enter county here:
0
 / 25 guessed
The quiz is paused. You have remaining.
Scoring
You scored / = %
This beats or equals % of test takers also scored 100%
The average score is
Your high score is
Your fastest time is
Keep scrolling down for answers and more stats ...
L.
Population
County
State
A
1,649,060
Alameda
CA
B
2,127,737
Bexar
TX
C
5,182,617
Cook
IL
D
2,656,028
Dallas
TX
E
950,602
Erie
NY
F
1,356,303
Franklin
OH
G
1,003,869
Gwinnett
GA
H
5,009,302
Harris
TX
I
290,427
Ingham
MI
J
793,881
Jefferson
KY
K
2,617,631
Kings
NY
L
9,757,179
Los Angeles
CA
M
4,673,096
Maricopa
AZ
N
1,660,664
New York
NY
O
3,170,435
Orange
CA
P
1,582,055
Palm Beach
FL
Q
2,316,841
Queens
NY
R
2,529,933
Riverside
CA
S
3,298,799
San Diego
CA
T
2,230,708
Tarrant
TX
U
747,234
Utah
UT
V
835,427
Ventura
CA
W
1,771,063
Wayne
MI
X
Y
471,240
York
PA
Z
13,819
Zapata
TX
Save Your Stats
Your Next Quiz
Do you know where all 50 states are located? Fill in the map of the U.S. by correctly guessing each highlighted state.
Name the countries from which the greatest number of refugees have fled.
Drag the flag onto the correct state. Careful, though! One wrong move and the game ends.
Drag the flag onto the correct country. Careful, though! One wrong move and the game ends.
2 Comments
+1
Level 62
Dec 15, 2025
Washington counties could not compete
+1
Level 81
Dec 15, 2025
Yakima County was runner-up, at least.