Plymouth is a village in Hancock County, Illinois, home to about 456 people across 0.6 square miles. Its ZIP code is 62367.
Mostly Plymouth
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| Nearest major airport | St. Louis Lambert International Airport (STL)113 miles away |
|---|---|
| Closer regional airport | Quincy Regional Airport Baldwin Field (UIN)29 miles away |
| Nearest city of 250,000+ | St. Louis, MO123 miles away |
| Nearest city of 1 million+ | Chicago, IL200 miles away |
Straight-line distances from the center of Plymouth; 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.
Plymouth had 436 residents in the 2020 census, down 22% since 2000.
It’s the 967th largest of 1,450 towns in Illinois by population.
Hancock County grew from 32,215 residents in 1900 to 17,620 in 2020.
Hancock County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 86°F in summer, and winter lows average 18°F. About 40.4 inches of rain and melted snow fall in a typical year, with about 23 inches of snow.
Source: NOAA 1991–2020 climate normals, Bentley, IL weather station (8 miles away).
2,706 jobs at 365 businesses in Hancock 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.
Libraries
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
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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.