Photo: United States Census Bureau, modified by User:FUBAR007 · Public domainLiving in Rockford Township, KS: what to set up and who to call
Rockford Township has its own drop-off, Derby Chip Site. Rockford Township has its own library, Derby Public Library, at 1600 E Walnut Grove.
I’m new in town
What to set up in Rockford Township, 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 Rockford Township.
Power comes from Evergy
Evergy (Evergy Kansas Central, Inc.), an investor-owned utility, serves all of Rockford Township. 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 Derby water system
The City of Derby water system supplies Rockford Township: about 68% of residents live in its service area. City of Mulvane serves another 21%. Sedgwick Co RWD 3 serves another 9%. It buys treated surface water (EPA lists City of Wichita as seller) and serves 25,413 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 2022–Dec 2024, was 1.3 ppb, below the 15 ppb action level that applied. The highest in five years was 1.6 ppb. That’s higher than 54% 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. KS2017328.
9 home internet providers serve Rockford Township
100% of 8,776 addresses can get 100/20 Mbps; 94% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Cox Communications | Cable, Fiber | 90% | 2,000/100 |
| Nextlink | Fixed wireless, Fiber | 88% | 5,000/5,000 |
| AT&T | Fiber, DSL, Fixed wireless | 85% | 5,000/5,000 |
| IdeaTek | Fiber | 46% | 8,000/8,000 |
| Twin Valley | Fixed wireless, Fiber | 42% | 2,000/2,000 |
| Velocity Internet | Fiber, Fixed wireless | 8% | 2,000/2,000 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Rockford Township has its own drop-off: Derby Chip Site
Where to take trash and recycling in Rockford Township, and where the rules are.
Derby Chip Site
Before you go, check the rules with the town.
OpenStreetMap, as of Oct 9, 2026 (last edited Aug 2026). © OpenStreetMap contributors.
Where your child goes to school
Public school districts and the school path by grade.
Most of Rockford Township (58%) is in Mulvane Unified School District 263; parts are in Derby Unified School District 260 (31%) and Rose Hill Public Schools Unified School District 394 (11%).
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 Sep 2026; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Rockford Township spans 2 ZIP codes
ZIP codes where Rockford Township residents live, with the share of the town in each.
| ZIP | Post office name | Share of Rockford Township | ZIP’s residents in Rockford Township |
|---|---|---|---|
| 67037 | Derby, KS | 75% | 59% |
| 67110 | Mulvane, KS | 25% | 71% |
A few homes fall in 67133.
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 Rockford Township
Who supplies Rockford Township’s drinking water, and has it had violations?
The City of Derby water system (EPA ID KS2017328). 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 1.3 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Rockford Township?
Evergy (Evergy Kansas Central, Inc.), an investor-owned utility. Its homes paid about 14.6¢ per kWh in 2025 (EIA).
What internet providers serve Rockford Township?
Cox Communications, Nextlink, AT&T, IdeaTek, Twin Valley, Velocity Internet (FCC, as of December 2025).
What ZIP codes are in Rockford Township?
67037 (75%), 67110 (25%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Rockford Township in?
Mulvane Unified School District 263. Parts of the city are in Derby Unified School District 260 and Rose Hill Public Schools Unified School District 394.
How do I register to vote in Rockford Township?
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 Sedgwick County Election Commissioner. 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.