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The Poinsett Colony handbook

Living in Poinsett Colony, SD: what to set up and who to call

Poinsett Colony has no town government of its own, so Hamlin County runs its elections and most services, and its children attend Estelline School District 28-2. For a library card, the closest branch is Clear Lake City Library, 13.4 miles out.

Which school will my kid attend?How do I register to vote?ZIP codes
Poinsett Colony has no town government. It’s a census-designated place in Hamlin County, so the county and regional agencies provide most services. This page answers what we can; the same answers appear on Poinsett Colony’s town page under “Getting set up”.

I’m new in town

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

PowerNorthWestern Energyinvestor-owned utility · 13.3¢/kWhMore →Internet4 providers100% of addresses get 100/20 MbpsMore →Trash & dumpNot on file yetWe don’t have Poinsett Colony’s trash rules yetMore →SchoolEstelline School District 28-2Which school depends on grade and addressMore →Register to voteIn personRules from vote.govMore →ZIP code57223Where people live, not P.O. boxesMore →
Home services

Power, water and internet

Who to call to start service at a new address in Poinsett Colony.

Electricity

Power comes from NorthWestern Energy

NorthWestern Energy (NorthWestern Energy - (SD)), an investor-owned utility, serves all of Poinsett Colony. Its homes paid an average of 13.3¢ per kWh in 2025, about $125 a month (its average across South Dakota).

Start or move service: northwesternenergy.com · (800) 245-6977

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

Internet

4 home internet providers serve Poinsett Colony

100% of 10 addresses can get 100/20 Mbps; 80% can get fiber.

ProviderTechnologyAddressesFastest (Mbps)
ITCFiber80%1,000/1,000
GigFireFixed wireless100%150/130
T-MobileFixed wireless10%25/3
VerizonFixed wireless10%25/6

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

Trash & recycling

We don’t have Poinsett Colony’s trash rules yet

Pickup rules, the dump and recycling in Poinsett Colony.

Trash, recycling and bulk pickupNot on filePoinsett Colony has no town government of its own, so look for trash and recycling rules on the county’s site.
Schools

Where your child goes to school

Public school districts and the school path by grade.

Poinsett Colony kids go to
PK–5Estelline Elementary - 02in Estelline
6–8Estelline Middle School - 03in Estelline
9–12Estelline High School - 01in Estelline

Poinsett Colony is in Estelline School District 28-2.

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.

Government & voting

No town hall: the county runs things

Poinsett Colony is unincorporated, so Hamlin County is the local government.

Local governmentHamlin CountyPoinsett Colony is a census-designated place: no town hall of its ownCensus
Who runs elections hereHamlin County AuditorElections here are run by Hamlin County (county election office). PO Box 237, Hayti, SD 57241-0237 · (605) 783-3201 · [email protected]FVAP, Jul 2023
Register to voteIn personSouth Dakota has no online registration; you can register in person until 15 days before Election Day or by mail (received 15 days before).vote.govCheck your registration and polling placevip.sdsos.govThe state’s voter lookup

Election office: FVAP local election office directory, updated Jul 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.

ZIP codes & area codes

Poinsett Colony is in ZIP code 57223

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

ZIPPost office nameShare of Poinsett ColonyZIP’s residents in Poinsett Colony
57223Castlewood, SD100%0%

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.

Nearest emergency roomSanford Clear Lake Medical Center13.7 miles awayGet a library cardClear Lake City Library125 3rd Ave S · (605) 874-2013

ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.

Questions about living in Poinsett Colony

Who provides electricity in Poinsett Colony?

NorthWestern Energy (NorthWestern Energy - (SD)), an investor-owned utility. Its homes paid about 13.3¢ per kWh in 2025 (EIA).

What internet providers serve Poinsett Colony?

ITC, GigFire, T-Mobile, Verizon (FCC, as of December 2025).

What ZIP codes are in Poinsett Colony?

57223. Census 2020 ZIP Code Tabulation Areas.

What school district is Poinsett Colony in?

Estelline School District 28-2.

How do I register to vote in Poinsett Colony?

South Dakota has no online registration; you can register in person until 15 days before Election Day or by mail (received 15 days before). Elections here are run by the Hamlin County Auditor. Check your registration at vip.sdsos.gov.

Sources & dates

Every answer above names its source. Here they are with their dates.

  • 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 Aug 3, 2026 (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.