Living in Rock Valley, IA: what to set up and who to call
Every home in Rock Valley is in ZIP code 51247. Premier Communications is the only wired internet provider that reaches most of Rock Valley.
I’m new in town
What to set up in Rock Valley, 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 Rock Valley.
Power comes from MidAmerican Energy
MidAmerican Energy (MidAmerican Energy Co), an investor-owned utility, serves all of Rock Valley. Its homes paid an average of 11.2¢ per kWh in 2025, about $93 a month (its average across Iowa).
Start or move service: midamericanenergy.com · (888) 427-5632
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Rock Valley Rural Water District
Rock Valley Rural Water District supplies Rock Valley: about 49% of residents live in its service area. About 49% 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 2,230 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 7,966 systems serving 1,001–3,300 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Jun 2025, was 2.4 ppb, below the 15 ppb action level that applied. The highest in five years was 4.9 ppb. That’s higher than 77% 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 (EPA’s estimate). Violations are counted by the start of their compliance period. IA8482701.
6 home internet providers serve Rock Valley
100% of 1,554 addresses can get 100/20 Mbps; 45% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Premier Communications | Cable, Fiber | 96% | 1,000/1,000 |
| Heartland Telecommunications Company of Iowa | Fiber | 4% | 1,000/1,000 |
| Verizon | Fixed wireless | 84% | 300/20 |
| T-Mobile | Fixed wireless | 84% | 100/20 |
| AT&T | Fixed wireless | 41% | 25/3 |
| Community Internet Service | Fixed wireless | 4% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in Rock Valley is Tuesday or Wednesday, depending on your street
Pickup days, the drop-off and recycling in Rock Valley, from the town’s own site.
Your pickup week
- TrashEvery week, on your street’s day (Tue or Wed)The town’s pickup map
City Yard Waste Site
2019 Main Street, Rock Valley, IA 51247
We couldn’t find its opening hours.
City Yard Waste Site
2019 Main Street, Rock Valley, IA 51247
From cityofrockvalley.com, the town’s official site, checked Oct 21, 2026; pages dated 2026. Rules change: the town’s page is the last word. .
Where your child goes to school
Public school districts and the school path by grade.
Rock Valley is in Rock Valley Community School District.
BSchool 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 Nov 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Rock Valley is in ZIP code 51247
ZIP codes where Rock Valley residents live, with the share of the town in each.
| ZIP | Post office name | Share of Rock Valley | ZIP’s residents in Rock Valley |
|---|---|---|---|
| 51247 | Rock Valley, IA | 100% | 75% |
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 Rock Valley
Who supplies Rock Valley’s drinking water, and has it had violations?
Rock Valley Rural Water District (EPA ID IA8482701). 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 2.4 ppb (Jan–Jun 2025), against a 15 ppb action level.
Who provides electricity in Rock Valley?
MidAmerican Energy (MidAmerican Energy Co), an investor-owned utility. Its homes paid about 11.2¢ per kWh in 2025 (EIA).
What internet providers serve Rock Valley?
Premier Communications, Heartland Telecommunications Company of Iowa, Verizon, T-Mobile, AT&T, Community Internet Service (FCC, as of December 2025).
What ZIP codes are in Rock Valley?
51247. Census 2020 ZIP Code Tabulation Areas.
What school district is Rock Valley in?
Rock Valley Community School District.
How do I register to vote in Rock Valley?
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 Sioux 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: Rock Valley’s own website (cityofrockvalley.com), read Oct 21, 2026, pickup and drop-off facts extracted and checked against the page they came from.
- 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.