Living in Castle Township, KS: what to set up and who to call
Most mail in Castle Township goes to 67491 (84% of residents), one of 2 ZIP codes in town. Children in Castle Township attend Little River Unified School District 444.
I’m new in town
What to set up in Castle Township, 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 Castle Township.
Power comes from Evergy
Evergy (Evergy Kansas Central, Inc.), an investor-owned utility, serves all of Castle Township. Its homes paid an average of 14.6¢ per kWh in 2025, about $124 a month (its average across Kansas).
Start or move service: evergy.com
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Windom water system
The City of Windom water system supplies Castle Township: about 53% of residents live in its service area. Rice Co RWD 1 serves another 49%. It buys treated ground water (EPA lists City of Mcpherson as seller) and serves 93 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 11,392 systems serving <=100 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 1.3 ppb, below the 15 ppb action level that applied. That’s higher than 64% 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. KS2011314.
6 home internet providers serve Castle Township
68% of 102 addresses can get 100/20 Mbps; 59% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| LR Communications | Fixed wireless, Fiber | 100% | 1,000/1,000 |
| Brightspeed | DSL | 58% | 100/10 |
| Kansas Broadband Internet | Fixed wireless | 76% | 100/20 |
| Nextlink | Fixed wireless | 73% | 1,000/500 |
| T-Mobile | Fixed wireless | 66% | 100/20 |
| IdeaTek | Fixed wireless | 6% | 25/5 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Castle Township’s trash rules yet
Pickup rules, the dump and recycling in Castle Township.
Where your child goes to school
Public school districts and the school path by grade.
Castle Township is in Little River Unified School District 444.
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 Jul 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Castle Township spans 2 ZIP codes
ZIP codes where Castle Township residents live, with the share of the town in each.
| ZIP | Post office name | Share of Castle Township | ZIP’s residents in Castle Township |
|---|---|---|---|
| 67491 | Windom, KS | 84% | 36% |
| 67460 | Mcpherson, KS | 16% | 0% |
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 Castle Township
Who supplies Castle Township’s drinking water, and has it had violations?
The City of Windom water system (EPA ID KS2011314). It reported no health-based violations to EPA in the five years to October 2026; 78% of systems its size had none. Its latest lead 90th percentile was 1.3 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Castle Township?
Evergy (Evergy Kansas Central, Inc.), an investor-owned utility. Its homes paid about 14.6¢ per kWh in 2025 (EIA).
What internet providers serve Castle Township?
LR Communications, Brightspeed, Kansas Broadband Internet, Nextlink, T-Mobile, IdeaTek (FCC, as of December 2025).
What ZIP codes are in Castle Township?
67491 (84%), 67460 (16%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Castle Township in?
Little River Unified School District 444.
How do I register to vote in Castle Township?
In Kansas you can register online until 21 days before Election Day, in person until 21 days before Election Day, or by mail (postmarked 21 days before). Elections here are run by the McPherson County Clerk. Check your registration at myvoteinfo.voteks.org.
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.