Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
history of zip codes in the united states | 0.09 | 1 | 6704 | 8 |
year zip codes began | 0.13 | 0.8 | 9522 | 77 |
year zip codes started | 0.52 | 0.4 | 6174 | 42 |
when did they start zip codes | 2 | 0.6 | 8213 | 58 |
when did zip codes start in usa | 1.97 | 0.8 | 7409 | 81 |
what was the first zip code usa | 1.55 | 0.3 | 2391 | 62 |
when zip codes began | 1.55 | 0.5 | 8365 | 6 |
when were zip codes started | 0.02 | 0.8 | 4989 | 1 |
when were zip codes established | 1.05 | 0.2 | 6217 | 82 |
what year did zip codes begin | 1.11 | 0.4 | 357 | 100 |
when did the zip code begin | 1.1 | 0.5 | 9006 | 88 |
when did the zip code start | 0.9 | 0.2 | 8663 | 55 |
origin zip code usa | 1.21 | 0.5 | 175 | 79 |
when was the zip code introduced | 0.44 | 0.6 | 7146 | 82 |
first zip code in the us | 1.74 | 0.4 | 1725 | 2 |
what year was the zip code introduced | 1.45 | 1 | 9622 | 72 |
where was the first zip code issued | 1.44 | 0.8 | 4482 | 64 |
zip codes began in what year | 1.08 | 0.6 | 3802 | 61 |
zip codes started in what year | 0.87 | 0.6 | 8363 | 88 |
when did usa start using zip codes | 1.78 | 0.5 | 7167 | 51 |
when was the first zip code used | 0.94 | 0.8 | 1664 | 51 |