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Memphis, Tennessee Zip Codes 37501 38101 38103 38104 38105 38106 38107 38108 38109 38110 38111 38112 38113 38114 38116 38117 38118 38119 38120 38122 38124 38125 38126 38127 38128 38129 38130 38131 38133 38134 38135 38136 38137 38138 38139 38140 38141 38142 38143 38145 38146 38147 38150 38151 38152 38157 38159 38161 38163 38165 38166 38167 38168 38173 38174 38175 38181 38182 38183 38184 38186 38187 38188 38190 38193 38194 38195 38197 Prior to the use of zip codes, cities were divided into regions and mail was addressed as Memphis 10, Tennessee, for example, to show which region of the city the mail was intended for. As cities continued to grow this system was not sufficient and was replaced by the Zip Code. ZipCodes went into effect in 1963. The United States Postal Service (USPS) initially used a cartoon character Mr. Zip to promote the use of zip codes. In 1983 the zipcode added the last four digits in an attempt to more narrowly define an address. The first three digits of a zip code indicate the sectional center facility which will ultimately sort and distribute that piece of mail. All mail to that 5 digit zipcode will first arrive at the sectional center facility then after sorting continue along to its exact destination. Since the first digit of Memphis's zip code is 3 it is located in the "3" zone that includes the following areas: Alabama, Florida, Georgia, Mississippi, and Tennessee.