Williamstown is a community in Lewis County, Missouri, home to about 23 people across 0.3 square miles. It has no ZIP code of its own: it’s part of 63473.
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| Nearest major airport | Des Moines International Airport (DSM)132 miles away |
|---|---|
| Closer regional airport | Quincy Regional Airport Baldwin Field (UIN)38 miles away |
| Nearest city of 250,000+ | St. Louis, MO138 miles away |
| Nearest city of 1 million+ | Chicago, IL240 miles away |
Straight-line distances from the center of Williamstown; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
It’s the 1029th largest of 1,060 towns in Missouri by population.
Lewis County grew from 16,724 residents in 1900 to 10,032 in 2020.
Lewis County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 85°F in summer, and winter lows average 17°F. About 39.6 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Canton L&D 20, MO weather station (16 miles away).
1,836 jobs at 182 businesses in Lewis County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.