Post Falls Community United Presbyterian Church · Photo: Nancy Reilly Young · CC BY-SA 3.0Living in Post Falls, ID: what to set up and who to call
The closest public drop-off to Post Falls is Prairie Solid Waste Transfer Station, 3 miles out; the town decides whether residents may use it. Ziply Fiber and Spectrum wire most of Post Falls, and 91% of addresses can get fiber.
I’m new in town
What to set up in Post Falls, 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 Post Falls.
Power comes from Avista
Avista (Avista Corp.), an investor-owned utility, serves all of Post Falls. Its homes paid an average of 11.8¢ per kWh in 2025, about $107 a month (its average across Idaho).
Start or move service: avistacorp.com · (509) 489-0500
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Post Falls water system
The City of Post Falls water system supplies Post Falls: about 54% of residents live in its service area. About 45% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws ground water and serves 20,285 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 83% of the 3,525 systems serving 10,001–50,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2023–Dec 2025, was 1.0 ppb, below the 15 ppb action level that applied. That’s lower than 59% 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. ID1280147.
8 home internet providers serve Post Falls
100% of 13,601 addresses can get 100/20 Mbps; 91% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Ziply Fiber | Fixed wireless, Fiber, DSL | 100% | 6,000/6,000 |
| Spectrum | Cable, Fiber | 98% | 1,000/35 |
| Intermax Networks | Fixed wireless, Fiber | 93% | 100/20 |
| TDS Telecom | Fiber | 84% | 8,000/8,000 |
| Wired or Wireless | Fixed wireless | 99% | 30/10 |
| Wind Wireless | Fixed wireless | 73% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
The nearest public drop-off is 3 miles away
Pickup rules, the dump and recycling in Post Falls.
Prairie Solid Waste Transfer Station
15580 West Prairie Avenue, ID
This isn’t Post Falls’ own facility. Whether Post Falls residents may use it is the town’s rule: check postfallsidaho.org.
OpenStreetMap, as of Oct 9, 2026. © OpenStreetMap contributors.
Where your child goes to school
Public school districts and the school path by grade.
Most of Post Falls (97%) is in Post Falls School District 273; parts are in Lakeland Joint School District 272 (3%).
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 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Post Falls is in ZIP code 83854
ZIP codes where Post Falls residents live, with the share of the town in each.
| ZIP | Post office name | Share of Post Falls | ZIP’s residents in Post Falls |
|---|---|---|---|
| 83854 | Post Falls, ID | 100% | 78% |
83877 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 Post Falls
Who supplies Post Falls’ drinking water, and has it had violations?
The City of Post Falls water system (EPA ID ID1280147). It reported no health-based violations to EPA in the five years to October 2026; 83% of systems its size had none. Its latest lead 90th percentile was 1.0 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Post Falls?
Avista (Avista Corp.), an investor-owned utility. Its homes paid about 11.8¢ per kWh in 2025 (EIA).
What internet providers serve Post Falls?
Ziply Fiber, Spectrum, Intermax Networks, TDS Telecom, Wired or Wireless, Wind Wireless (FCC, as of December 2025).
What ZIP codes are in Post Falls?
83854. Census 2020 ZIP Code Tabulation Areas.
What school district is Post Falls in?
Post Falls School District 273. Parts of the city are in Lakeland Joint School District 272.
How do I register to vote in Post Falls?
In Idaho you can register online until 11 days before Election Day, in person up to and including Election Day, or by mail (received 11 days before). Elections here are run by the Kootenai County Clerk. Check your registration at elections.sos.idaho.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 Sep 12, 2025 (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.