Imes Covered Bridge · Photo: Jet Lowe · Public domainLiving in St. Charles, IA: what to set up and who to call
Every home in St. Charles is in ZIP code 50240. Madison County Health Care System, 11.3 miles away, is the nearest emergency room.
I’m new in town
What to set up in St. Charles, 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 St. Charles.
Power comes from MidAmerican Energy
MidAmerican Energy (MidAmerican Energy Co), an investor-owned utility, serves all of St. Charles. Its homes paid an average of 11.2¢ per kWh in 2025, about $93 a month (its average across Iowa).
Start or move service: midamericanenergy.com · (888) 427-5632
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
3 home internet providers serve St. Charles
100% of 286 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| OmniTel | Fiber | 100% | 8,000/8,000 |
| T-Mobile | Fixed wireless | 86% | 100/20 |
| Verizon | Fixed wireless | 78% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have St. Charles’ trash rules yet
Pickup rules, the dump and recycling in St. Charles.
Where your child goes to school
Public school districts and the school path by grade.
St. Charles is in Interstate 35 Community 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 Nov 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
St. Charles is in ZIP code 50240
ZIP codes where St. Charles residents live, with the share of the town in each.
| ZIP | Post office name | Share of St. Charles | ZIP’s residents in St. Charles |
|---|---|---|---|
| 50240 | Saint Charles, IA | 100% | 27% |
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 St. Charles
Who provides electricity in St. Charles?
MidAmerican Energy (MidAmerican Energy Co), an investor-owned utility. Its homes paid about 11.2¢ per kWh in 2025 (EIA).
What internet providers serve St. Charles?
OmniTel, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in St. Charles?
50240. Census 2020 ZIP Code Tabulation Areas.
What school district is St. Charles in?
Interstate 35 Community School District.
How do I register to vote in St. Charles?
In Iowa you can register online until 15 days before Election Day, in person up to and including Election Day, or by mail (postmarked 15 days before). Elections here are run by the Madison County Auditor. Check your registration at sos.iowa.gov.
Sources & dates
Every answer above names its source. Here they are with their dates.
- 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.