Living in Walnut, KS: what to set up and who to call
All of Walnut gets its mail under one ZIP code, 66780. Walnut Public Library, 0.6 miles away, is the closest library to Walnut.
I’m new in town
What to set up in Walnut, 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 Walnut.
Power comes from Evergy
Evergy (Evergy Kansas Central, Inc.), an investor-owned utility, serves all of Walnut. 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 Walnut water system
The City of Walnut water system supplies almost all of Walnut. It buys treated surface water (EPA lists Public Wholesale WSD 5 as seller) and serves 189 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 77% of the 15,074 systems serving 101–500 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2023–Dec 2025, was 1.2 ppb, below the 15 ppb action level that applied. The highest in five years was 2.1 ppb. That’s higher than 60% 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. KS2003701.
1 home internet providers serve Walnut
0% of 121 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Craw Kan Telephone Cooperative | DSL | 100% | 50/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Walnut’s trash rules yet
Pickup rules, the dump and recycling in Walnut.
Where your child goes to school
Public school districts and the school path by grade.
Walnut is in Girard Unified School District 248.
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 Jun 2022; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Walnut is in ZIP code 66780
ZIP codes where Walnut residents live, with the share of the town in each.
| ZIP | Post office name | Share of Walnut | ZIP’s residents in Walnut |
|---|---|---|---|
| 66780 | Walnut, KS | 100% | 34% |
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 Walnut
Who supplies Walnut’s drinking water, and has it had violations?
The City of Walnut water system (EPA ID KS2003701). It reported no health-based violations to EPA in the five years to October 2026; 77% of systems its size had none. Its latest lead 90th percentile was 1.2 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Walnut?
Evergy (Evergy Kansas Central, Inc.), an investor-owned utility. Its homes paid about 14.6¢ per kWh in 2025 (EIA).
What internet providers serve Walnut?
Craw Kan Telephone Cooperative (FCC, as of December 2025).
What ZIP codes are in Walnut?
66780. Census 2020 ZIP Code Tabulation Areas.
What school district is Walnut in?
Girard Unified School District 248.
How do I register to vote in Walnut?
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 Crawford 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.