Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
when did zip codes start in usa | 1.27 | 0.5 | 5577 | 93 |
when did the usa start using zip codes | 1.43 | 0.7 | 2139 | 5 |
when did we start using zip codes in usa | 1.86 | 0.8 | 1824 | 77 |
when did the us start using zip codes | 0.14 | 0.5 | 8921 | 69 |
when did zip code start | 1.79 | 0.6 | 6598 | 35 |
when was zip codes introduced | 1.03 | 0.9 | 6646 | 77 |
what year did zip code start | 0.42 | 1 | 830 | 94 |
when were zip codes first used | 0.82 | 0.1 | 6904 | 46 |
when were zip codes created | 1.11 | 0.3 | 9881 | 46 |
what year were zip codes introduced | 1.49 | 0.4 | 8070 | 8 |
zip codes started in what year | 1.05 | 0.9 | 6203 | 24 |
zip codes introduced in what year | 0.92 | 0.8 | 9120 | 57 |
zip codes began in what year | 0.33 | 0.3 | 2575 | 18 |