Letter
|
Population
|
Largest County
|
A
|
1,671,329
|
Alameda
|
B
|
2,003,554
|
Bexar
|
C
|
5,150,233
|
Cook
|
D
|
2,635,516
|
Dallas
|
E
|
918,702
|
Erie
|
F
|
1,316,756
|
Franklin
|
G
|
936,250
|
Gwinnett
|
H
|
4,713,325
|
Harris
|
I
|
292,406
|
Ingham
|
J
|
776,757
|
Jefferson
|
K
|
2,559,903
|
Kings
|
L
|
10,039,107
|
Los Angeles
|
M
|
4,485,514
|
Maricopa
|
N
|
1,628,706
|
New York
|
O
|
3,175,692
|
Orange
|
P
|
1,584,064
|
Philadelphia
|
Q
|
2,253,858
|
Queens
|
R
|
2,470,546
|
Riverside
|
S
|
3,338,330
|
San Diego
|
T
|
2,102,515
|
Tarrant
|
U
|
636,235
|
Utah
|
V
|
846,006
|
Ventura
|
W
|
1,749,343
|
Wayne
|
Y
|
449,058
|
York
|
Z
|
14,179
|
Zapata
|
|
Letter
|
Population
|
Second largest County
|
A
|
1,216,045
|
Allegheny
|
B
|
1,952,778
|
Broward
|
C
|
2,266,715
|
Clark
|
D
|
957,755
|
Duval
|
E
|
839,238
|
El Paso
|
F
|
1,147,532
|
Fairfax
|
G
|
537,174
|
Guilford
|
H
|
1,471,968
|
Hillsborough
|
I
|
181,806
|
Iredell
|
J
|
703,011
|
Jackson
|
K
|
2,252,782
|
King
|
L
|
770,577
|
Lee
|
M
|
2,716,940
|
Miami-Dade
|
N
|
1,356,924
|
Nassau
|
O
|
1,393,452
|
Orange
|
P
|
1,496,770
|
Palm Beach
|
Q
|
50,381
|
Queen Anne's
|
R
|
550,321
|
Ramsey
|
S
|
2,180,085
|
San Bernardino
|
T
|
1,273,954
|
Travis
|
U
|
556,341
|
Union
|
V
|
553,284
|
Volusia
|
W
|
1,111,761
|
Wake
|
Y
|
280,979
|
York
|
Z
|
11,840
|
Zavala
|
|