St. Peter's Catholic Church · Photo: Jim Roberts · CC BY-SA 4.0Living in Rensselaer, MO: what to set up and who to call
Ralls County Pwsd 1 reported 4 health-based violations to EPA in the last five years: disinfection byproducts (TTHM) ×4. 80% of systems its size reported none. Power in Rensselaer comes from Ralls County Electric Coop, a cooperative utility rather than a private company.
I’m new in town
What to set up in Rensselaer, 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 Rensselaer.
Power comes from Ralls County Electric Coop
Ralls County Electric Coop (Ralls County Electric Coop), a cooperative utility, serves all of Rensselaer.
Start or move service: rallscountyelectric.com
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Ralls County Pwsd 1
Ralls County Pwsd 1 supplies almost all of Rensselaer. It draws ground water (EPA lists Hannibal PWS as seller) and serves 7,662 people in all.
4 health-based violations reported to EPA in the five years to October 2026: disinfection byproducts (TTHM) ×4, the latest beginning Jan 2023. 80% of the 5,012 systems serving 3,301–10,000 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 1.6 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. Violations are counted by the start of their compliance period. MO2024499.
3 home internet providers serve Rensselaer
100% of 108 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Ralls Technologies | Fiber | 100% | 10,000/10,000 |
| Mark Twain Communications Company | Fixed wireless | 48% | 100/50 |
| AT&T | Fixed wireless | 8% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Rensselaer’s trash rules yet
Pickup rules, the dump and recycling in Rensselaer.
Where your child goes to school
Public school districts and the school path by grade.
Rensselaer is in Monroe City R-I School District.
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.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Aug 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Rensselaer is in ZIP code 63401
ZIP codes where Rensselaer residents live, with the share of the town in each.
| ZIP | Post office name | Share of Rensselaer | ZIP’s residents in Rensselaer |
|---|---|---|---|
| 63401 | Hannibal, MO | 100% | 1% |
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 Rensselaer
Who supplies Rensselaer’s drinking water, and has it had violations?
Ralls County Pwsd 1 (EPA ID MO2024499). It reported 4 health-based violations to EPA in the five years to October 2026: disinfection byproducts (TTHM) ×4. 80% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Rensselaer?
Ralls County Electric Coop (Ralls County Electric Coop), a cooperative utility.
What internet providers serve Rensselaer?
Ralls Technologies, Mark Twain Communications Company, AT&T (FCC, as of December 2025).
What ZIP codes are in Rensselaer?
63401. Census 2020 ZIP Code Tabulation Areas.
What school district is Rensselaer in?
Monroe City R-I School District.
How do I register to vote in Rensselaer?
In Missouri you can register online until 27 days before Election Day, in person until 27 days before Election Day, or by mail (postmarked 27 days before). Elections here are run by the Ralls. Check your registration at voteroutreach.sos.mo.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 Nov 18, 2024 (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.