Photo: w_lemay · CC BY-SA 2.0Living in Sioux City, IA: what to set up and who to call
Sioux City runs its own electric utility, City of South Sioux City. For a library card, the closest branch is Sioux City Public Library, 0.8 miles out.
I’m new in town
What to set up in Sioux City, 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 Sioux City.
Power comes from City of South Sioux City
City of South Sioux City (City of South Sioux City), a municipal utility, serves 95.0% of Sioux City residents.
Start or move service: southsiouxcity.org
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Sioux City Water Supply
Sioux City Water Supply supplies almost all of Sioux City. It draws ground water influenced by surface water and serves 85,791 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 90% of the 597 systems serving 50,001–100,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2023–Dec 2025, was 2.0 ppb, below the 15 ppb action level that applied. The highest in five years was 3.0 ppb. That’s higher than 66% 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. IA9778054.
9 home internet providers serve Sioux City
100% of 28,215 addresses can get 100/20 Mbps; 87% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Sparklight | Cable, Fiber | 99% | 1,000/50 |
| Metronet | Fiber | 89% | 5,120/5,120 |
| CenturyLink | DSL, Fiber | 38% | 100/10 |
| Long Lines Metro | Fiber, Cable, DSL | 6% | 1,000/1,000 |
| Verizon | Fixed wireless | 51% | 300/20 |
| AT&T | Fixed wireless | 39% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in Sioux City is any weekday, depending on your street
Pickup days, the drop-off and recycling in Sioux City, from the town’s own site.
Your pickup week
- TrashEvery week, on your street’s day (any weekday)Look up your day on sioux-city.org
- RecyclingEvery other week, same day as trashCheck which week on sioux-city.org →
Citizen's Convenience Center (CCC)
5800 28th Street, Sioux City, IA 51108
We couldn’t find its opening hours.
Single-stream recycling
All your recyclables go in one bin, no sorting.
From sioux-city.org, the town’s official site, checked Oct 21, 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.
Most of Sioux City (82%) is in Sioux City Community School District; parts are in Sergeant Bluff-Luton Community School District (17%).
DSchool 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.
Sioux City spans 7 ZIP codes
ZIP codes where Sioux City residents live, with the share of the town in each.
| ZIP | Post office name | Share of Sioux City | ZIP’s residents in Sioux City |
|---|---|---|---|
| 51106 | Sioux City, IA | 32% | 94% |
| 51104 | Sioux City, IA | 27% | 100% |
| 51103 | Sioux City, IA | 20% | 100% |
| 51105 | Sioux City, IA | 12% | 100% |
| 51108 | Sioux City, IA | 5% | 71% |
| 51109 | Sioux City, IA | 3% | 90% |
| 51101 | Sioux City, IA | 1% | 100% |
A few homes fall in 51111, 51054. 51102 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 Sioux City
Who supplies Sioux City’s drinking water, and has it had violations?
Sioux City Water Supply (EPA ID IA9778054). It reported no health-based violations to EPA in the five years to October 2026; 90% of systems its size had none. Its latest lead 90th percentile was 2.0 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Sioux City?
City of South Sioux City (City of South Sioux City), a municipal utility.
What internet providers serve Sioux City?
Sparklight, Metronet, CenturyLink, Long Lines Metro, Verizon, AT&T (FCC, as of December 2025).
What ZIP codes are in Sioux City?
51106 (32%), 51104 (27%), 51103 (20%), 51105 (12%), 51108 (5%), 51109 (3%), 51101 (1%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Sioux City in?
Sioux City Community School District. Parts of the city are in Sergeant Bluff-Luton Community School District.
How do I register to vote in Sioux City?
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 Woodbury 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: Sioux City’s own website (sioux-city.org), 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.