| 1946 | 1,242 | 18,523,289 | 14,914 |
| 1947 | 1,243 | 19,874,539 | 15,989 |
| 1948 | 1,237 | 20,920,842 | 16,913 |
| 1949 | 1,240 | 20,215,365 | 16,303 |
| 1950 | 1,238 | 17,462,977 | 14,106 |
| 1951 | 1,239 | 16,126,676 | 13,016 |
| 1952 | 1,239 | 14,633,044 | 11,810 |
| 1953 | 1,240 | 14,383,797 | 11,600 |
| 1954 | 1,237 | 15,935,883 | 12,883 |
| 1955 | 1,234 | 16,617,383 | 13,466 |
| 1956 | 1,239 | 16,543,250 | 13,352 |
| 1957 | 1,235 | 17,015,819 | 13,778 |
Source: baseball-reference.com, kenn.com
1946: 52 leagues, 40.5 million fans
1949: 59 leagues, 41.9 million fans
1952: 43 leagues, 25.3 million fans
1957: 28 leagues, 15.5 million fans
1963: 18 Leagues, 10 million fans.
Source: Robert Obojoski, Bush League
American League Teams appearing in World Series: 2
World Series in which a New York area team did not appear: 1
Source: http://www.seth.com/coll_letters_19.html