Lindenwood Neighborhood Historic District · Photo: Jim Roberts · CC BY-SA 4.0Living in St. Charles, MO: what to set up and who to call
Most mail in St. Charles goes to 63301 (63% of residents), one of 2 ZIP codes in town. For home internet, most of St. Charles can choose between Spectrum and AT&T.
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 Union Electric
Union Electric (Union Electric Co - (MO)), an investor-owned utility, serves all of St. Charles. Its homes paid an average of 13.3¢ per kWh in 2025, about $137 a month (its average across Missouri).
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from St Charles PWS
St Charles PWS supplies St. Charles: about 94% of residents live in its service area. About 5% 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 St Louis City PWS and Missouri American Water as sellers) and serves 78,961 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 90% of the 597 systems serving 50,001–100,000 people.
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. 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. MO6010707.
7 home internet providers serve St. Charles
99% of 24,999 addresses can get 100/20 Mbps; 82% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 98% | 1,000/1,000 |
| AT&T | Fiber, DSL, Fixed wireless | 98% | 5,000/5,000 |
| i3 Broadband | Fiber | 16% | 8,000/8,000 |
| Brown Dog Networks | Fixed wireless | 100% | 50/10 |
| T-Mobile | Fixed wireless | 66% | 100/20 |
| Verizon | Fixed wireless | 63% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in St. Charles depends on your street
Pickup days, the drop-off and recycling in St. Charles, from the town’s own site.
Your pickup week
- TrashEvery week, on your street’s day
Single-stream recycling
All your recyclables go in one bin, no sorting.
- Paper
- Glass
- Aluminum
- Most types of plastic
From stcharlescitymo.gov, the town’s official site, checked Oct 23, 2026. 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.
Most of St. Charles (56%) is in St. Charles R-VI School District; parts are in Orchard Farm R-V School District (27%) and Francis Howell R-III School District (18%).
B+School 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 Aug 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
St. Charles spans 2 ZIP codes
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 |
|---|---|---|---|
| 63301 | Saint Charles, MO | 63% | 87% |
| 63303 | Saint Charles, MO | 37% | 55% |
A few homes fall in 63376. 63302 is P.O. box or single-organization ZIP with no homes.
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 supplies St. Charles’ drinking water, and has it had violations?
St Charles PWS (EPA ID MO6010707). It reported no health-based violations to EPA in the five years to October 2026; 90% 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 St. Charles?
Union Electric (Union Electric Co - (MO)), an investor-owned utility. Its homes paid about 13.3¢ per kWh in 2025 (EIA).
What internet providers serve St. Charles?
Spectrum, AT&T, i3 Broadband, Brown Dog Networks, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in St. Charles?
63301 (63%), 63303 (37%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is St. Charles in?
St. Charles R-VI School District. Parts of the city are in Orchard Farm R-V School District and Francis Howell R-III School District.
How do I register to vote in St. Charles?
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 St. Charles. 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: St. Charles’ own website (stcharlescitymo.gov), read Oct 23, 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 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.