Living in Cahokia Township, IL: what to set up and who to call
The Benld water system reported one health-based violation to EPA in the last five years: a surface water treatment requirement (Long Term 2 Enhanced Surface Water Treatment Rule), beginning Jan 2026. For emergencies, Cahokia Township is closest to St. Francis Hospital, 6.8 miles away.
I’m new in town
What to set up in Cahokia Township, and who provides it. Tap an answer for the details and where they come from.
Power, water and internet
Who to call to start service at a new address in Cahokia Township.
Power comes from Ameren Illinois Company
Ameren Illinois Company (Ameren Illinois Company), an investor-owned utility, serves all of Cahokia Township. Its homes paid an average of 16.7¢ per kWh in 2025, about $148 a month (its average across Illinois, for customers on its standard service). Illinois lets you buy power from another supplier; 45% of Ameren Illinois Company’s home customers do, and Ameren Illinois Company still delivers it.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Benld water system
The Benld water system supplies Cahokia Township: about 44% of residents live in its service area. Gillespie serves another 21%. About 25% 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 Gillespie as seller) and serves 1,612 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a surface water treatment requirement (Long Term 2 Enhanced Surface Water Treatment Rule), beginning Jan 2026. 78% of the 7,966 systems serving 1,001–3,300 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Jun 2026, was 0.1 ppb, below the 15 ppb action level that applied. That’s lower than 62% 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. IL1170050.
8 home internet providers serve Cahokia Township
93% of 1,667 addresses can get 100/20 Mbps; 72% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Conxxus | Fiber | 61% | 8,000/8,000 |
| Madison Communications | Cable, Fiber | 48% | 1,000/150 |
| Frontier | DSL, Fiber | 44% | 7,000/7,000 |
| Sparklight | Cable | 22% | 1,000/50 |
| Nextlink | Fixed wireless | 60% | 1,000/500 |
| Royell Communications | Fixed wireless | 36% | 25/5 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Cahokia Township’s trash rules yet
Pickup rules, the dump and recycling in Cahokia Township.
Where your child goes to school
Public school districts and the school path by grade.
Most of Cahokia Township (67%) is in Gillespie Community Unit School District 7; parts are in Mount Olive Community Unit School District 5 (30%) and Litchfield Community Unit School District 12 (3%).
CSchool gradeSee Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Jun 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Cahokia Township spans 5 ZIP codes
ZIP codes where Cahokia Township residents live, with the share of the town in each.
| ZIP | Post office name | Share of Cahokia Township | ZIP’s residents in Cahokia Township |
|---|---|---|---|
| 62009 | Benld, IL | 49% | 94% |
| 62033 | Gillespie, IL | 26% | 18% |
| 62069 | Mount Olive, IL | 15% | 16% |
| 62056 | Litchfield, IL | 6% | 2% |
| 62023 | Eagarville, IL | 3% | 100% |
A few homes fall in 62085.
Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.
Getting around, the ER and the library
One line each; the subject pages have the rest.
ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Cahokia Township
Who supplies Cahokia Township’s drinking water, and has it had violations?
The Benld water system (EPA ID IL1170050). It reported 1 health-based violation to EPA in the five years to October 2026: a surface water treatment requirement (Long Term 2 Enhanced Surface Water Treatment Rule). 78% of systems its size had none. Its latest lead 90th percentile was 0.1 ppb (Jan–Jun 2026), against a 15 ppb action level.
Who provides electricity in Cahokia Township?
Ameren Illinois Company (Ameren Illinois Company), an investor-owned utility. Its homes paid about 16.7¢ per kWh in 2025 (EIA).
What internet providers serve Cahokia Township?
Conxxus, Madison Communications, Frontier, Sparklight, Nextlink, Royell Communications (FCC, as of December 2025).
What ZIP codes are in Cahokia Township?
62009 (49%), 62033 (26%), 62069 (15%), 62056 (6%), 62023 (3%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Cahokia Township in?
Gillespie Community Unit School District 7. Parts of the city are in Mount Olive Community Unit School District 5 and Litchfield Community Unit School District 12.
How do I register to vote in Cahokia 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 Macoupin 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.