Living in Lake Arrowhead, MO: what to set up and who to call
Clinton Co Pwsd 4 Sys 1 reported 2 health-based violations to EPA in the last five years: disinfection byproducts (TTHM) ×2. 80% of systems its size reported none. Lake Arrowhead has no town government of its own, so Clinton County runs its elections and most services, and its children attend Kearney R-I School District.
I’m new in town
What to set up in Lake Arrowhead, 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 Lake Arrowhead.
Power comes from Union Electric
Union Electric (Union Electric Co - (MO)), an investor-owned utility, serves all of Lake Arrowhead. 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 Clinton Co Pwsd 4 Sys 1
Clinton Co Pwsd 4 Sys 1 supplies almost all of Lake Arrowhead. It buys treated surface water (EPA lists Lathrop PWS and Plattsburg PWS and Clinton County Pwsd 4 Sys 2 as sellers) and serves 4,968 people in all.
2 health-based violations reported to EPA in the five years to October 2026: disinfection byproducts (TTHM) ×2, the latest beginning Jan 2026. 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 2.0 ppb, below the 15 ppb action level that applied. That’s higher than 71% of similar systems’ latest results.
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. MO1024156.
7 home internet providers serve Lake Arrowhead
97% of 234 addresses can get 100/20 Mbps; 94% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Fiber | 70% | 1,000/1,000 |
| Grand River Mutual Telephone | Fiber | 36% | 1,000/1,000 |
| Brightspeed | DSL | 24% | 80/10 |
| T-Mobile | Fixed wireless | 67% | 100/20 |
| AT&T | Fixed wireless | 47% | 25/3 |
| Internet and Communication Associates of Northern Missouri | Fixed wireless | 21% | 50/10 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Lake Arrowhead’s trash rules yet
Pickup rules, the dump and recycling in Lake Arrowhead.
Where your child goes to school
Public school districts and the school path by grade.
Most of Lake Arrowhead (51%) is in Kearney R-I School District; parts are in Lathrop R-II School District (49%).
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
Lake Arrowhead is unincorporated, so Clinton County is the local government.
Election office: FVAP local election office directory, updated Aug 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Lake Arrowhead is in ZIP code 64465
ZIP codes where Lake Arrowhead residents live, with the share of the town in each.
| ZIP | Post office name | Share of Lake Arrowhead | ZIP’s residents in Lake Arrowhead |
|---|---|---|---|
| 64465 | Lathrop, MO | 100% | 8% |
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 Lake Arrowhead
Who supplies Lake Arrowhead’s drinking water, and has it had violations?
Clinton Co Pwsd 4 Sys 1 (EPA ID MO1024156). It reported 2 health-based violations to EPA in the five years to October 2026: disinfection byproducts (TTHM) ×2. 80% of systems its size had none. Its latest lead 90th percentile was 2.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Lake Arrowhead?
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 Lake Arrowhead?
Spectrum, Grand River Mutual Telephone, Brightspeed, T-Mobile, AT&T, Internet and Communication Associates of Northern Missouri (FCC, as of December 2025).
What ZIP codes are in Lake Arrowhead?
64465. Census 2020 ZIP Code Tabulation Areas.
What school district is Lake Arrowhead in?
Kearney R-I School District. Parts of the city are in Lathrop R-II School District.
How do I register to vote in Lake Arrowhead?
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 Clinton. 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.