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Thornton, IllinoisPhoto: Dennisyerger84 · CC BY-SA 3.0
The Thornton Township handbook

Living in Thornton Township, IL: what to set up and who to call

The Calumet City water system reported one health-based violation to EPA in the last five years: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024. Thornton Township has its own drop-off, Tri-State Disposal, on 13903 South Ashland Avenue.

I’m new in town

What to set up in Thornton Township, and who provides it. Tap an answer for the details and where they come from.

Home services

Power, water and internet

Who to call to start service at a new address in Thornton Township.

Electricity

Power comes from Commonwealth Edison

Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility, serves all of Thornton Township. Its homes paid an average of 17.7¢ per kWh in 2025, about $107 a month (its average across Illinois, for customers on its standard service). Illinois lets you buy power from another supplier; 20% of Commonwealth Edison’s home customers do, and Commonwealth Edison still delivers it.

Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.

Drinking water · reported to EPA

Water comes from Calumet City water system

The Calumet City water system supplies Thornton Township: about 21% of residents live in its service area. Lansing serves another 15%. South Holland serves another 14%. Harvey serves another 12%. Dolton serves another 12%. Riverdale serves another 6%. About 5% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated surface water (EPA lists Chicago and Hammond Water Works Department as sellers) and serves 37,000 people in all.

1 health-based violation reported to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024. 83% of the 3,525 systems serving 10,001–50,000 people had none.

Lead, 90th percentile11.0 ppb
015 ppb action level20

The latest lead result on file, the 90th percentile of homes sampled in Jan–Jun 2026, was 11.0 ppb, below the 15 ppb action level that applied. The highest in five years was 17.0 ppb. That’s higher than 99% of similar systems’ latest results.

The system’s full record: EPA ECHO report

EPA SDWIS via Envirofacts (violations pulled Oct 9, 2026) and ECHO (lead samples, 2026Q3); service area: EPA Community Water System Service Area Boundaries v3.0 (EPA’s estimate). Violations are counted by the start of their compliance period. IL0310390.

Internet

5 home internet providers serve Thornton Township

100% of 57,904 addresses can get 100/20 Mbps; 13% can get fiber.

ProviderTechnologyAddressesFastest (Mbps)
XfinityCable100%2,000/250
AT&TDSL, Fixed wireless, Fiber76%5,000/5,000
Astound BroadbandCable, Fiber33%1,500/50
T-MobileFixed wireless63%100/20
VerizonFixed wireless56%300/20

FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.

Trash & recycling

Thornton Township has its own drop-off: Tri-State Disposal

Where to take trash and recycling in Thornton Township, and where the rules are.

Transfer station · run by not listed

Tri-State Disposal

13903 South Ashland Avenue, Riverdale, IL, 60827

Before you go, check the rules on tri-statedisposal.com.

OpenStreetMap, as of Oct 9, 2026 (last edited Oct 2024). © OpenStreetMap contributors.

Schools

Where your child goes to school

Public school districts and the school path by grade.

Thornton Township kids go to
9–125 high schoolsDepends on your address

Most of Thornton Township (70%) is in Thornton Township High School District 205; parts are in Thornton Fractional Township High School District 215 (25%) and Lansing School District 158 (11%) and Dolton School District 149 (11%) and Dolton School District 148 (10%) and South Holland School District 151 (10%) and Thornton School District 154 (9%) and Harvey School District 152 (8%) and South Holland School District 150 (7%) and West Harvey-Dixmoor Public School District 147 (6%) and Hazel Crest School District 152-5 (6%) and Homewood-Flossmoor Community High School District 233 (5%) and Hoover-Schrum Memorial School District 157 (5%) and Homewood School District 153 (5%) and Calumet City School District 155 (5%) and Burnham School District 154-5 (3%) and Lincoln Elementary School District 156 (3%).

C−School gradeSee Schools →

U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.

Government & voting

Town hall and registering to vote

Who to call, and how to register.

Election office: FVAP local election office directory, updated Apr 2026; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.

ZIP codes & area codes

Thornton Township spans 12 ZIP codes

ZIP codes where Thornton Township residents live, with the share of the town in each.

ZIPPost office nameShare of Thornton TownshipZIP’s residents in Thornton Township
60409Calumet City, IL23%100%
60438Lansing, IL15%82%
60426Harvey, IL14%93%
60473South Holland, IL14%100%
60419Dolton, IL14%100%
60827Riverdale, IL6%37%
60430Homewood, IL4%30%
60633Chicago, IL3%30%
60429Hazel Crest, IL2%25%
60428Markham, IL2%27%
60476Thornton, IL2%100%
60406Blue Island, IL2%10%

A few homes fall in 60425, 60469.

Area code708Wikidata

Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.

Everyday places

Getting around, the ER and the library

One line each; the subject pages have the rest.

Train: OpenStreetMap (© OpenStreetMap contributors). ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.

Questions about living in Thornton Township

Who supplies Thornton Township’s drinking water, and has it had violations?

The Calumet City water system (EPA ID IL0310390). It reported 1 health-based violation to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions). 83% of systems its size had none. Its latest lead 90th percentile was 11.0 ppb (Jan–Jun 2026), against a 15 ppb action level.

Who provides electricity in Thornton Township?

Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility. Its homes paid about 17.7¢ per kWh in 2025 (EIA).

What internet providers serve Thornton Township?

Xfinity, AT&T, Astound Broadband, T-Mobile, Verizon (FCC, as of December 2025).

What ZIP codes are in Thornton Township?

60409 (23%), 60438 (15%), 60426 (14%), 60473 (14%), 60419 (14%), 60827 (6%), 60430 (4%), 60633 (3%), 60429 (2%), 60428 (2%), 60476 (2%), 60406 (2%), by share of residents. Census 2020 ZIP Code Tabulation Areas.

What school district is Thornton Township in?

Thornton Township High School District 205. Parts of the city are in Thornton Fractional Township High School District 215 and Lansing School District 158 and Dolton School District 149 and Dolton School District 148 and South Holland School District 151 and Thornton School District 154 and Harvey School District 152 and South Holland School District 150 and West Harvey-Dixmoor Public School District 147 and Hazel Crest School District 152-5 and Homewood-Flossmoor Community High School District 233 and Hoover-Schrum Memorial School District 157 and Homewood School District 153 and Calumet City School District 155 and Burnham School District 154-5 and Lincoln Elementary School District 156.

How do I register to vote in Thornton Township?

In Illinois you can register online until 16 days before Election Day, in person up to and including Election Day, or by mail (postmarked 28 days before). Elections here are run by the Cook County Clerk. Check your registration at ova.elections.il.gov.

Sources & dates

Every answer above names its source. Here they are with their dates.

  • Water: EPA SDWIS (Envirofacts, pulled Oct 9, 2026), ECHO SDWA 2026Q3, EPA CWS Service Area Boundaries v3.0.
  • Power: HIFLD Electric Retail Service Territories (map Aug 2023); EIA-861 final 2025.
  • Trash: OpenStreetMap, Geofabrik extract of Oct 9, 2026. © OpenStreetMap contributors (ODbL).
  • ZIP codes: Census 2020 ZCTA relationship files; GeoNames postal codes (CC BY 4.0).
  • Schools: NCES Common Core of Data, 2024–25.
  • Registration: vote.gov, updated Sep 12, 2025 (read Oct 10, 2026). Official sites and area codes: Wikidata.
  • Election office: FVAP local election office directory (fetched Oct 10, 2026; each record dated), EAC EAVS 2024 jurisdictions; registration and lookup links from vote.gov’s state data, checked Oct 10, 2026.
  • Internet: FCC National Broadband Map, as of December 2025.