Aux Sable Township (T34N R8E) is one of seventeen townships in Grundy County, Illinois, United States. As of the 2020 census, its population was 15,361 and it contained 5,184 housing units.

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How Aux Sable ranks

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#27Fastest growing in IL #191Highest income in IL #195Highest graduation rate in IL All IL rankings →

Town numbers

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Living in Aux Sable

Health in Aux Sable

B⁺

Health Grade B+

Healthier than 72% of U.S. towns on seven CDC estimates.

Compared with Illinois

8better than IL

of 32 measures CDC estimates. The other 24 are too close to call.

Conditions 2▲ 10 close Habits all close Care 2▲ 5 close Mind all close Everyday needs 4▲ 0 close

BetterToo close to callWorse

What stands out

11.6%Fewer adults facing food insecurityIL 15.9% · better 7.8%Fewer uninsured adultsIL 9.9% · better

Care nearby

Morris Hospital & Healthcare CentersMorris · 7.3 mi · ER

Aunt Martha's Health Center Joliet JeffersonJoliet · 11.2 mi · sliding-scale fees

Primary careNo shortage

DentalNo shortage

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · ZIP codes 60447, 60450, 60410 · CMS · HRSAHealth in Aux Sable →

Natural hazards in Aux Sable

Moderate

Expected storm and flood damage is higher than in 40% of U.S. communities.

🥶 Cold waves🌊 Inland flooding🌪️ Tornadoes

66Does Aux Sable flood?paid flood claims since 1981 2Disasters that paid out herefederal disasters sent FEMA money to Aux Sable MapAux Sable vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Aux Sable →

Schools in Aux Sable

All Aux Sable schools →

B⁺

School Grade B+

The public schools Aux Sable’s kids attend, from kindergarten through graduation, outperform 66% of Illinois’s districts on state tests and graduation. Among towns with similar incomes, they sit near the middle.

#144Best public schoolsof 384 in IL

DistrictMinooka CCSD 201Schools7

Aux Sable BElementary · Grades K–4 · 617 students Minooka Elem School BElementary · Grades K–4 · 504 students Minooka Jr High School B+Middle · Grades 7–8 · 1,024 students Minooka Intermediate School B-Middle · Grades 5–6 · 941 students Minooka Community High School B+High · Grades 9–12 · 2,918 students Minooka AcademyHigh · Grades 9–12

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.