Find the last 4 digits (ZIP+4) for an address in 63645

ZIP 63645, Fredericktown, MO is filled in. Just type the street address.

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ZIP Code 63645 – Fredericktown, MO

Fredericktown, Missouri · Madison County · Central time

ZIP code63645
CityFredericktown
StateMissouri
CountyMadison CountySt. Francois CountySte. Genevieve County
Population11,554
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area359.29 sq mi
Center (lat, long)37.5434, -90.3260

Area codes in this area

235573

These are the area codes that most often serve ZIP 63645 (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

63651 Knob Lick · 9.4 mi63655 Marquand · 13.1 mi63621 Arcadia · 14 mi63640 Farmington · 14.8 mi63662 Patton · 15.1 mi63637 Doe Run · 15.7 mi63632 Cascade · 17.1 mi63650 Ironton · 17.3 mi

About ZIP 63645

ZIP code 63645 is assigned to Fredericktown, Missouri. It crosses 3 counties; most of its land is in Madison County. Its Census area covers about 359.29 square miles of land. The closest neighboring ZIP is 63651 (Knob Lick), about 9.4 miles away.

Every address in 63645 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