ZIP Codes Box

Jefferson County, Missouri ZIP codes

18ZIP codes
18Cities and towns
199,561People in ZIP areas
314, 557, 573Area codes

Jefferson County is in Missouri and the Central Time zone. ZIP codes don’t follow county lines exactly, so a ZIP code listed here can reach into a neighboring county.

All ZIP codes in Jefferson County

ZIP codeCityTypePopulationMedian income
63010ArnoldStandard34,478$79,784
63012BarnhartStandard10,314$96,099
63016Cedar HillStandard6,459$86,359
63019Crystal CityStandard4,489$72,569
63020De SotoStandard20,166$70,824
63023DittmerStandard5,002$79,583
63028FestusStandard28,457$79,737
63047HematitePO Box only––
63048HerculaneumStandard4,228$92,109
63049High RidgeStandard16,592$92,333
63050HillsboroStandard18,744$87,371
63051House SpringsStandard13,436$79,940
63052ImperialStandard28,712$92,922
63053KimmswickPO Box only56$61,250
63057LiguoriPO Box only––
63065MapavillePO Box only––
63066Morse MillPO Box only––
63070PevelyStandard8,428$65,211

Cities and towns in Jefferson County

Area codes in Jefferson County

Questions

How many ZIP codes are in Jefferson County, MO?
Jefferson County has 18 ZIP codes, 13 of them standard ZIP codes for street addresses.
What cities are in Jefferson County?
Jefferson County ZIP codes cover Arnold, Barnhart, Cedar Hill, Crystal City, De Soto, Dittmer, Festus and Hematite and 10 other places.
What area code is Jefferson County, MO?
Jefferson County uses area codes 314, 557, 573, 618 and 636.
What time zone is Jefferson County in?
Jefferson County is in Central Time.

Other Missouri counties