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Foster

A township of 380 people in Marion County, Illinois
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About Foster

Township in Illinois, United States
380Population
35.6 sq miArea
535 ftElevation

As of the 2010 census, its population was 379 and it contained 193 housing units. Foster Township is mainly a farming community with corn, wheat and soy beans being the major crop. It no longer has towns or villages within its boundaries.

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From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Living in Foster

Work & commute in Foster

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Most working residents leave Foster for work: only 1% work in town. The top destinations are Salem (18%), Mount Vernon (8%) and Centralia (7%). Half commute less than 25 miles.

Salem
18%
Mount Vernon
8%
Centralia
7%
Tonti
3%
Census LEHD 2023 · ACSWork & commute in Foster →

Health in Foster

C

Health Grade C

Healthier than 34% of U.S. towns on seven CDC estimates.

Compared with Illinois

6better than IL·4worse

of 32 measures CDC estimates. The other 22 are too close to call.

BetterToo close to callWorse

What stands out

Care nearby

Salem Township HospitalSalem · 9.7 mi · ER · rural critical access
Sihf Healthcare - SalemSalem · 9.9 mi · sliding-scale fees
Primary careShortage · county-wide
DentalShortage · county-wide
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · ZIP codes 62807, 62875, 62854 · CMS · HRSAHealth in Foster →

Natural hazards in Foster

56
Moderate

Expected storm and flood damage is higher than in 56% of U.S. communities.

🏚️ Earthquakes🌊 Inland flooding💨 Strong wind
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Foster →

Climate in Foster

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Foster has chilly winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 22°, and about 15 inches of snow falls in a normal winter.

41° / 25°Winter
65° / 44°Spring
86° / 65°Summer
67° / 46°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Foster →

Libraries near Foster

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Nearest: Kinmundy Public LibraryKinmundy · 6.2 miles · 31 hrs a week

Famous people close to Foster

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Where Foster is

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Locator map of Foster
Wikimedia Commons · Map: Omnedon · Public domain

Location map

Illinois · IL · Marion CountyTown boundary on OpenStreetMap →

How things work in Foster

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The coffee’s on

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You’re in Foster, ILMarion CountyView boundary

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/15 · 2025-01-01