Living in Adair, IL: what to set up and who to call
Adair has no town government of its own, so McDonough County runs its elections and most services, and its children attend Macomb Community Unit School District 185. Tap water in most of Adair comes from the New Salem Pwd water system, which has a clean five-year EPA record (about 23% of systems its size had a health-based violation) and a latest lead result below detection.
I’m new in town
What to set up in Adair, 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 Adair.
Power comes from Ameren Illinois Company
Ameren Illinois Company (Ameren Illinois Company), an investor-owned utility, serves all of Adair. 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 New Salem Pwd water system
The New Salem Pwd water system supplies Adair: about 59% of residents live in its service area. About 41% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated ground water (EPA lists Marietta as seller) and serves 451 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 77% of the 15,074 systems serving 101–500 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Dec 2025, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 8.0 ppb. Results below detection are reported as 0, so 0 doesn’t mean no lead at any tap.
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. IL1090010.
3 home internet providers serve Adair
91% of 107 addresses can get 100/20 Mbps; 91% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| McDonough Telephone Cooperative | Fiber | 89% | 1,000/1,000 |
| LogonixCorporation | Fixed wireless | 100% | 38/12 |
| T-Mobile | Fixed wireless | 32% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Adair’s trash rules yet
Pickup rules, the dump and recycling in Adair.
Where your child goes to school
Public school districts and the school path by grade.
Adair is in Macomb Community Unit School District 185.
Test scores and every school: see Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
No town hall: the county runs things
Adair is unincorporated, so McDonough County is the local government.
Election office: FVAP local election office directory, updated Jun 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Adair is in ZIP code 61411
ZIP codes where Adair residents live, with the share of the town in each.
| ZIP | Post office name | Share of Adair | ZIP’s residents in Adair |
|---|---|---|---|
| 61411 | Adair, IL | 100% | 60% |
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 Adair
Who supplies Adair’s drinking water, and has it had violations?
The New Salem Pwd water system (EPA ID IL1090010). It reported no health-based violations to EPA in the five years to October 2026; 77% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan–Dec 2025), against a 15 ppb action level.
Who provides electricity in Adair?
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 Adair?
McDonough Telephone Cooperative, LogonixCorporation, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Adair?
61411. Census 2020 ZIP Code Tabulation Areas.
What school district is Adair in?
Macomb Community Unit School District 185.
How do I register to vote in Adair?
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 McDonough 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.