Living in Cosby, MO: what to set up and who to call
Tap water in Cosby comes from Andrew County Pwsd 2, which has a clean five-year EPA record (about 20% of systems its size had a health-based violation) and a latest lead result below detection. For a library card, the closest branch is Rolling Hills Consolidated Library, 8.6 miles out.
I’m new in town
What to set up in Cosby, 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 Cosby.
Power comes from Evergy
Evergy (Evergy Missouri West), an investor-owned utility, serves all of Cosby. Its homes paid an average of 12.1¢ per kWh in 2025, about $121 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 Andrew County Pwsd 2
Andrew County Pwsd 2 supplies almost all of Cosby. It buys treated ground water (EPA lists Mo American St Joseph as seller) and serves 3,580 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 2024–Dec 2026, 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. MO1024005.
2 home internet providers serve Cosby
98% of 64 addresses can get 100/20 Mbps; 98% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| United Fiber | Fiber | 98% | 1,000/1,000 |
| KWIKOM Communications | Fixed wireless | 34% | 60/12 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Cosby’s trash rules yet
Pickup rules, the dump and recycling in Cosby.
Where your child goes to school
Public school districts and the school path by grade.
Cosby is in Savannah R-III 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 Oct 2024; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Cosby is in ZIP code 64436
ZIP codes where Cosby residents live, with the share of the town in each.
| ZIP | Post office name | Share of Cosby | ZIP’s residents in Cosby |
|---|---|---|---|
| 64436 | Cosby, MO | 100% | 15% |
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 Cosby
Who supplies Cosby’s drinking water, and has it had violations?
Andrew County Pwsd 2 (EPA ID MO1024005). 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 0.0 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Cosby?
Evergy (Evergy Missouri West), an investor-owned utility. Its homes paid about 12.1¢ per kWh in 2025 (EIA).
What internet providers serve Cosby?
United Fiber, KWIKOM Communications (FCC, as of December 2025).
What ZIP codes are in Cosby?
64436. Census 2020 ZIP Code Tabulation Areas.
What school district is Cosby in?
Savannah R-III School District.
How do I register to vote in Cosby?
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 Andrew. 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.