Keyword Analysis & Research: when did zip codes start in usa

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did zip codes start in usa	0.71	0.2	7560	31	31
when	1.14	0.4	9883	13	4
did	1.8	0.1	1898	66	3
zip	1.55	0.8	2919	74	3
codes	0.44	0.9	8299	46	5
start	0.88	0.1	1303	13	5
in	0.03	0.8	5199	67	2
usa	1.08	0.2	5217	50	3

Keyword	CPC	PCC	Volume	Score
when did zip codes start in usa	1.7	0.5	9279	28