Ionia is a town in Pettis County, Missouri, home to about 74 people across 0.1 square miles. Its ZIP code is 65335.
Mostly Ionia
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| Nearest major airport | Kansas City International Airport (MCI)93 miles away |
|---|---|
| Closer regional airport | Columbia Regional Airport (COU)63 miles away |
| Nearest city of 250,000+ | Kansas City, MO79 miles away |
| Nearest city of 1 million+ | Chicago, IL376 miles away |
Straight-line distances from the center of Ionia; 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.
Ionia had 71 residents in the 2020 census, down 34% since 2000.
It’s the 920th largest of 1,060 towns in Missouri by population.
Pettis County grew from 32,438 residents in 1900 to 42,980 in 2020.
Pettis County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 19°F. About 42.6 inches of rain and melted snow fall in a typical year, with about 18 inches of snow.
Source: NOAA 1991–2020 climate normals, Cole Camp 3nw, MO weather station (4 miles away).
17,225 jobs at 1,004 businesses in Pettis 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.