Harter Township is one of twelve townships in Clay County, Illinois, USA. As of the 2020 census, its population was 6,159 and it contained 2,871 housing units.

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

How Harter ranks

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#22Lowest property tax in IL #27Most affordable in IL #63Cheapest rent in IL All IL rankings →

Town numbers

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Living in Harter

Work & commute in Harter

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About one in 5 of Harter’s working residents works in town. The top destinations are Flora (36%), Salem (6%) and Louisville (5%). Half commute less than 22 miles.

Flora

36%

Salem

Louisville

Effingham

22%Work in townlive and work in Harter 22 miWhere do people commute?the commute map 1,649Jobs based herea commuter town

Census LEHD 2023 · ACSWork & commute in Harter →

Health in Harter

C⁻

Health Grade C−

Healthier than 17% of U.S. towns on seven CDC estimates, and 37% of towns with similar incomes.

Compared with Illinois

14worse than IL

of 32 measures CDC estimates. The other 18 are too close to call.

Conditions 9▼ 3 close Habits 1▼ 3 close Care 1▼ 6 close Mind 3▼ 2 close Everyday needs all close

BetterToo close to callWorse

What stands out

19.1%More older adults who have lost all their teethIL 10.3% · worse 10.7%More adults with COPDIL 6.3% · worse 18%More smokersIL 12.1% · worse

Care nearby

Clay County HospitalFlora · 3.4 mi · ER · rural critical access

Clay Medical CenterFlora · 2.4 mi · sliding-scale fees

Primary careShortage · county-wide

DentalShortage · county-wide

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · ZIP codes 62839, 62858 · CMS · HRSAHealth in Harter →

Natural hazards in Harter

Moderate

Expected storm and flood damage is higher than in 58% of U.S. communities.

🏚️ Earthquakes🌊 Inland flooding🌪️ Tornadoes

3Does Harter flood?paid flood claims since 2015 NoneDisasters that paid out hereof 3 declared for Clay County MapHarter vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Harter →

Climate in Harter

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Harter has chilly winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 22°, and about 8 inches of snow falls in a normal winter.

42° / 25°Winter

65° / 44°Spring

86° / 65°Summer

68° / 46°Fall

How much snow does Harter get?About 8 inches a winter.Rain & snow →When is the first frost?Around Oct 23, with the last in spring around Apr 10.Frost dates →Is it warmer than it used to be?+1.0° vs. the 20th century.Then & now →

NOAA U.S. Climate Normals, 1991–2020Climate in Harter →

Schools in Harter

All Harter schools →

B⁻

School Grade B-

The public schools Harter’s kids attend, from kindergarten through graduation, outperform 52% of Illinois’s districts on state tests and graduation. Among towns with similar incomes, they rank near the top.

See how Harter’s schools compare in IL →

DistrictFlora CUSD 35Schools3

Flora Elementary School B+Elementary · Grades PK–5 · 672 students Floyd Henson Jr High Sch B+Middle · Grades 6–8 · 295 students Flora High School CHigh · Grades 9–12 · 353 students

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within IL. Ratings are from neighbors.