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Sacramento, California Zip Codes 94203 94204 94205 94206 94207 94208 94209 94211 94229 94230 94232 94234 94235 94236 94237 94239 94240 94243 94244 94245 94246 94248 94249 94250 94252 94253 94254 94256 94257 94258 94259 94261 94262 94263 94267 94268 94269 94271 94273 94274 94277 94278 94280 94282 94283 94284 94285 94286 94287 94288 94289 94290 94291 94293 94294 94295 94296 94297 94298 94299 95812 95813 95814 95816 95817 95818 95819 95820 95821 95822 95823 95824 95825 95826 95827 95828 95829 95830 95831 95832 95833 95834 95835 95836 95838 95840 95841 95842 95843 95851 95852 95853 95857 95860 95864 95865 95866 95867 95873 95887 95894 95899 Prior to the use of zip codes, cities were divided into regions and mail was addressed as Sacramento 10, California, 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 Sacramento's zip code is 9 it is located in the "9" zone that includes the following areas: Alaska, American Samoa, California, Guam, Hawaii, Marshall Islands, Federated States of Micronesia, Northern Mariana Islands, Oregon, Palau, Washington, Army Post Office Pacific, and Fleet Post Office Pacific .