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Thomas County Courthouse Colby Kansas 5-7-2014Photo: Richard Bauer · CC BY 2.0
The Colby handbook

Living in Colby, KS: what to set up and who to call

Colby runs its own electric utility, City of Colby. For emergencies, Colby is closest to Citizens Medical Center, 0.3 miles away.

I’m new in town

What to set up in Colby, and who provides it. Tap an answer for the details and where they come from.

Home services

Power, water and internet

Who to call to start service at a new address in Colby.

Electricity

Power comes from City of Colby

City of Colby (City of Colby - (KS)), a municipal utility, serves 97.4% of Colby residents.

Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.

Drinking water · reported to EPA

Water comes from City of Colby water system

The City of Colby water system supplies almost all of Colby. It draws ground water and serves 5,516 people in all.

No health-based violations reported to EPA in the five years to October 2026, like 80% of the 5,012 systems serving 3,301–10,000 people.

Lead, 90th percentile1.3 ppb
015 ppb action level20

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 1.8 ppb. That’s higher than 56% 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. KS2019302.

Internet

6 home internet providers serve Colby

100% of 2,275 addresses can get 100/20 Mbps; 99% can get fiber.

ProviderTechnologyAddressesFastest (Mbps)
S&T CommunicationsFixed wireless, Cable, Fiber100%1,000/100
Vyve BroadbandFiber99%8,000/8,000
AT&TFixed wireless, DSL60%25/3
Viaero WirelessFixed wireless66%100/5
T-MobileFixed wireless47%100/20
VerizonFixed wireless18%300/20

FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.

Trash & recycling

Trash day in Colby depends on your street

Pickup days, the drop-off and recycling in Colby, from the town’s own site.

Pickup

Your pickup week

Recycling drop-off

Thomas County Recycling Center

720 E College Drive

From cityofcolbyks.gov, the town’s official site, checked Oct 21, 2026. Rules change: the town’s page is the last word. .

Schools

Where your child goes to school

Public school districts and the school path by grade.

Colby kids go to
PK–4Colby ElemColby Public Schools Unified School District 315
5–8Colby Middle SchoolColby Public Schools Unified School District 315
9–12Colby Senior HighColby Public Schools Unified School District 315

Colby is in Colby Public Schools Unified School District 315.

B−School gradeSee Schools →

U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.

Government & voting

Town hall and registering to vote

Who to call, and how to register.

Election office: FVAP local election office directory, updated Dec 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.

ZIP codes & area codes

Colby is in ZIP code 67701

ZIP codes where Colby residents live, with the share of the town in each.

ZIPPost office nameShare of ColbyZIP’s residents in Colby
67701Colby, KS100%85%
Area code785Wikidata

Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.

Everyday places

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 Colby

Who supplies Colby’s drinking water, and has it had violations?

The City of Colby water system (EPA ID KS2019302). It reported no health-based violations to EPA in the five years to October 2026; 80% 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 Colby?

City of Colby (City of Colby - (KS)), a municipal utility.

What internet providers serve Colby?

S&T Communications, Vyve Broadband, AT&T, Viaero Wireless, T-Mobile, Verizon (FCC, as of December 2025).

What ZIP codes are in Colby?

67701. Census 2020 ZIP Code Tabulation Areas.

What school district is Colby in?

Colby Public Schools Unified School District 315.

How do I register to vote in Colby?

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 Thomas County Clerk. 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: Colby’s own website (cityofcolbyks.gov), 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.