Find the last 4 digits (ZIP+4) for an address in 63664

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ZIP Code 63664 – Potosi, MO

Potosi, Missouri · Washington County · Central time

ZIP code63664
CityPotosi
StateMissouri
CountyWashington County
Population9,693
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area287.67 sq mi
Center (lat, long)37.9172, -90.9142

Area codes in this area

235573

These are the area codes that most often serve ZIP 63664 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

63622 Belgrade · 8.7 mi63660 Mineral Point · 11.3 mi63630 Cadet · 13.1 mi63631 Caledonia · 13.2 mi63648 Irondale · 13.6 mi65566 Viburnum · 15.4 mi63626 Blackwell · 15.5 mi63674 Tiff · 16.1 mi

About ZIP 63664

ZIP code 63664 is assigned to Potosi, Missouri. It lies in Washington County. Its Census area covers about 287.67 square miles of land. The closest neighboring ZIP is 63622 (Belgrade), about 8.7 miles away.

Every address in 63664 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources