Photo: Dual Freq · CC BY 2.5Living in Monticello, IL: what to set up and who to call
Tap water in Monticello comes from the Monticello water system, which has a clean five-year EPA record (about 20% of systems its size had a health-based violation) and a latest lead result of 1.0 ppb. Allerton Public Library District, at 4000 Green Apple Lane, is the library in town.
I’m new in town
What to set up in Monticello, 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 Monticello.
Power comes from Ameren Illinois Company
Ameren Illinois Company (Ameren Illinois Company), an investor-owned utility, serves all of Monticello. 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 Monticello water system
The Monticello water system supplies almost all of Monticello. It draws ground water and serves 5,548 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 80% of the 5,012 systems serving 3,301–10,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Dec 2025, was 1.0 ppb, below the 15 ppb action level that applied. The highest in five years was 1.4 ppb. That’s lower than 57% 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. IL1470350.
7 home internet providers serve Monticello
100% of 2,495 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Pavlov Media | Fiber | 100% | 1,000/1,000 |
| Mediacom Xtream | Cable, Fiber | 98% | 1,000/50 |
| Verizon | Fixed wireless | 94% | 300/20 |
| Rise Broadband | Fixed wireless | 87% | 25/5 |
| AT&T | Fixed wireless | 70% | 25/3 |
| Nextlink | Fixed wireless | 33% | 800/400 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in Monticello depends on your street
Pickup days, the drop-off and recycling in Monticello, from the town’s own site.
Your pickup week
- TrashEvery week, on your street’s dayLook up your day on cityofmonticello.net
- RecyclingEvery other weekCheck which week on cityofmonticello.net →
Accepted at the curb
- Flattened cardboard
- Newspapers
- Magazines
- Office paper
- Common mail
From cityofmonticello.net, the town’s official site, checked Oct 21, 2026; pages dated 2026, January 1, 2023. Rules change: the town’s page is the last word. .
Where your child goes to school
Public school districts and the school path by grade.
Monticello is in Monticello Community Unit School District 25.
ASchool 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.
Monticello is in ZIP code 61856
ZIP codes where Monticello residents live, with the share of the town in each.
| ZIP | Post office name | Share of Monticello | ZIP’s residents in Monticello |
|---|---|---|---|
| 61856 | Monticello, IL | 100% | 75% |
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 Monticello
Who supplies Monticello’s drinking water, and has it had violations?
The Monticello water system (EPA ID IL1470350). It reported no health-based violations to EPA in the five years to October 2026; 80% of systems its size had none. Its latest lead 90th percentile was 1.0 ppb (Jan–Dec 2025), against a 15 ppb action level.
Who provides electricity in Monticello?
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 Monticello?
Pavlov Media, Mediacom Xtream, Verizon, Rise Broadband, AT&T, Nextlink (FCC, as of December 2025).
What ZIP codes are in Monticello?
61856. Census 2020 ZIP Code Tabulation Areas.
What school district is Monticello in?
Monticello Community Unit School District 25.
How do I register to vote in Monticello?
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 Piatt 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: Monticello’s own website (cityofmonticello.net), read Oct 21, 2026, pickup and drop-off facts extracted and checked against the page they came from.
- 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.