ZIP code · Williamsburg · Missouri · United States

ZIP code 63388 — Williamsburg

ZIP code 63388 serves Williamsburg, Missouri.

Postal code
63388
Single source Value from one source, not cross-checked.
City
Williamsburg
County
Callaway FIPS 29027
State
Missouri
Country
United States
Coordinates
38.8874, -91.7689 — precision precise (locality)
View on OpenStreetMap
Population
756 (ZCTA, ACS 5-year)
Population density
13 / sq mi
Land area
59.7 sq mi (154.7 km²) (ZCTA, ACS 5-year)
Median household income
$67,619
Per-capita income
$36,773
Median age
56.3
Households
362
Housing units
614
Median home value
$67,600
Congressional district
MO-3 (119th Congress)
USDA hardiness zone
6b (-5 to 0 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Chicago (UTC−6 / UTC−5 DST)
Area code
573
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 86°F), coldest Jan (avg low 20°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F374253657382868578665341
Avg low °F202433435362666456443324
Precip in2.42.23.14.85.24.54.54.04.23.73.12.5

NOAA 1991–2020 climate normals from the nearest station: FULTON (9.7 mi) · NOAA NCEI

Places in ZIP 63388

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page