ZIPCODE
| Date | Clue |
|---|---|
| 2018-04-11 | Closing part of an address |
| 2016-01-15 | Number of letters |
| 2014-08-15 | Letter number |
| 2011-01-03 | 90210, e.g. |
| 2008-01-15 | 90210, for Beverly Hills |
| 2006-07-13 | 12345, e.g. |
| 2004-05-14 | Delivery aid |
| 2003-02-22 | State follower, sometimes |
| 1999-11-21 | Numbers on letters |
| 1994-12-23 | Numbers on a letter |