Living in Callender, IA: what to set up and who to call
Callender runs its own electric utility, City of Callender. Tap water in Callender comes from Callender Water Supply, which has a clean five-year EPA record (about 23% of systems its size had a health-based violation) and a latest lead result below detection.
I’m new in town
What to set up in Callender, 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 Callender.
Power comes from City of Callender
City of Callender (City of Callender - (IA)), a municipal utility, serves all of Callender.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Callender Water Supply
Callender Water Supply supplies almost all of Callender. It draws ground water and serves 371 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 2022–Dec 2024, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 2.0 ppb. 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 (EPA’s estimate). Violations are counted by the start of their compliance period. IA9417063.
3 home internet providers serve Callender
100% of 203 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Lehigh Valley Cooperative Telephone Association | Fiber | 100% | 1,000/500 |
| Verizon | Fixed wireless | 86% | 300/20 |
| Northwest Communications | Fixed wireless | 22% | 10/1 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Callender’s trash rules yet
Pickup rules, the dump and recycling in Callender.
Where your child goes to school
Public school districts and the school path by grade.
Callender is in Southeast Valley Community 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 Nov 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Callender is in ZIP code 50523
ZIP codes where Callender residents live, with the share of the town in each.
| ZIP | Post office name | Share of Callender | ZIP’s residents in Callender |
|---|---|---|---|
| 50523 | Callender, IA | 100% | 59% |
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 Callender
Who supplies Callender’s drinking water, and has it had violations?
Callender Water Supply (EPA ID IA9417063). 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 0.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Callender?
City of Callender (City of Callender - (IA)), a municipal utility.
What internet providers serve Callender?
Lehigh Valley Cooperative Telephone Association, Verizon, Northwest Communications (FCC, as of December 2025).
What ZIP codes are in Callender?
50523. Census 2020 ZIP Code Tabulation Areas.
What school district is Callender in?
Southeast Valley Community School District.
How do I register to vote in Callender?
In Iowa you can register online until 15 days before Election Day, in person up to and including Election Day, or by mail (postmarked 15 days before). Elections here are run by the Webster County Auditor. Check your registration at sos.iowa.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.