Washington County Missouri Zip Codes

Cities in

Below are a list of the cities located in Washington County, MO. There are 8 total unique zip codes in Washington County, Missouri. The time zone for Washington County is the Central Daylight Time zone and they follow daylight savings time. The Federal Information Processing System (FIPS) Code for is 29221.

The population in Washington County, MO is currently 23,502. That is a decrease of -8.00% vs the population of 25,195 in 2010.

Zip Codes for Washington County, MO (8)
Zip Code
 City County
Zip Code Map
63071 Richwoods Washington
63622 Belgrade Washington
63630 Cadet Washington
63631 Caledonia Washington
63648 Irondale Washington
63660 Mineral Point Washington
63664 Potosi Washington
63674 Tiff Washington

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