You can see the attendance for each game for the Nationals and any other MLB team, going back many years, at
Ballparks of Baseball:http://www.ballparksofbaseball.com/attendance.htmNote that the Nationals outdrew the Orioles in 2010-2011. Nationals low games in 2011 were in April, likely with
cold and/or wet weather, and kids in school.
(In alphabetical order of ballpark name)
2010-2011 Attendance
City Ballpark 2010 2011 2-year Total ANA Angel Stadium 3,250,814 3,166,321 6,417,135
SF AT&T Park 3,037,443 3,387,303 6,424,746
STL New Busch Stadium 3,301,218 3,093,954 6,395,172
BAL Camden Yards 1,733,018 1,755,461 3,488,479
PHX Chase Field 2,056,519 2,105,432 4,161,951
NYM Citi Field 2,559,738 2,378,549 4,938,287
PHI Citizens Bank Park 3,647,249 3,680,718 7,327,967
DET Comerica Park 2,461,237 2,642,045 5,103,282
DEN Coors Field 2,875,245 2,909,777 5,785,022
LA Dodger Stadium 3,562,320 2,935,139 6,497,459
BOS Fenway Park 3,046,445 3,054,001 6,100,446
CIN Great American Ballpark 2,060,551 2,213,498 4,274,049
KC Kauffman Stadium 1,615,327 1,724,450 3,339,777
OAK Oakland Coliseum 1,418,391 1,476,792 2,895,183
MIL Miller Park 2,776,531 3,071,373 5,847,904
HOU Minute Maid Park 2,331,490 2,067,016 4,398,506
WASH Nationals Park 1,828,066 1,940,478 3,768,544
SD Petco Park 2,131,774 2,143,018 4,274,792
PIT PNC Park 1,613,399 1,940,429 3,553,828
CLE Progressive Field 1,391,644 1,840,835 3,232,479
ARL Rangers Ballpk in Arling. 2,505,171 2,946,949 5,452,120
TOR Rogers Centre 1,625,555 1,818,103 3,443,658
SEA Safeco Field 2,195,284 1,896,321 4,091,605
MIA Sun Life Stadium 1,524,894 1,520,562 3,045,456
MIN Target Field 3,223,640 3,168,107 6,391,747
TAM Tropicana Field 1,864,999 1,529,188 3,394,187
ATL Turner Field 2,510,119 2,372,940 4,883,059
CHI US Cellular Field 2,194,378 2,001,117 4,195,495
CHI Wrigley Field 3,062,973 3,017,966 6,080,939
NY Yankee Stadium II 3,765,807 3,653,680 7,419,487
Total Attendance 73,171,239 73,451,522 146,622,761
Highest Attendance Yankee Stadium Citizens Bank Park
Lowest Attendance Progressive Field O.co Coliseum