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Casstown Lutheran Stone Church from southwestPhoto: Nyttend · Public domain
The Casstown handbook

Living in Casstown, OH: what to set up and who to call

All of Casstown gets its mail under one ZIP code, 45312. Troy-Miami County Public Library, 4.2 miles away, is the closest library to Casstown.

Which school will my kid attend?How do I register to vote?ZIP codes

I’m new in town

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

PowerAES Ohioinvestor-owned utility · 16.1¢/kWhMore →Internet4 providers99% of addresses get 100/20 MbpsMore →Trash & dumpNot on file yetWe don’t have Casstown’s trash rules yetMore →SchoolMiami East Local School DistrictWhich school depends on grade and addressMore →Register to voteOnlineRules from vote.govMore →ZIP code45312Where people live, not P.O. boxesMore →
Home services

Power, water and internet

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

Electricity

Power comes from AES Ohio

AES Ohio (Dayton Power & Light Co.), an investor-owned utility, serves all of Casstown. Its homes paid an average of 16.1¢ per kWh in 2025, about $158 a month (its average across Ohio, for customers on its standard service). Ohio lets you buy power from another supplier; 70% of AES Ohio’s home customers do, and AES Ohio still delivers it.

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

Internet

4 home internet providers serve Casstown

99% of 125 addresses can get 100/20 Mbps; 0% can get fiber.

ProviderTechnologyAddressesFastest (Mbps)
SpectrumCable98%1,000/1,000
FrontierDSL77%115/7
AT&TFixed wireless79%25/3
VerizonFixed wireless69%300/20

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

Trash & recycling

We don’t have Casstown’s trash rules yet

Pickup rules, the dump and recycling in Casstown.

Trash, recycling and bulk pickupNot on fileOpenStreetMap lists no public drop-off in Casstown or within 5 miles (as of Oct 9, 2026); map coverage varies by town.
Schools

Where your child goes to school

Public school districts and the school path by grade.

Casstown kids go to
K–5Miami East ElementaryMiami East Local School District
6–8Miami East Junior High SchoolMiami East Local School District
9–12Miami East High SchoolMiami East Local School District

Casstown is in Miami East Local School District.

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

Town hall and registering to vote

Who to call, and how to register.

Town HallBudget, officials, electionsCasstown’s government in one page
Who runs elections hereDirector, Miami County Board of ElectionsElections here are run by Miami County (county election office). 215 W. Main St, Troy, OH 45373-3263 · (937) 440-3900 · [email protected]FVAP, Aug 2019
Register to voteOnlineIn Ohio you can register online until 30 days before Election Day, in person until 30 days before Election Day, or by mail (postmarked 30 days before).vote.govCheck your registration and polling placevoterlookup.ohiosos.govThe state’s voter lookup

Election office: FVAP local election office directory, updated Aug 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.

ZIP codes & area codes

Casstown is in ZIP code 45312

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

ZIPPost office nameShare of CasstownZIP’s residents in Casstown
45312Casstown, OH100%19%

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 roomUpper Valley Medical Center3.8 miles awayGet a library cardTroy-Miami County Public Library419 W. Main St. · (937) 339-0502

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

Questions about living in Casstown

Who provides electricity in Casstown?

AES Ohio (Dayton Power & Light Co.), an investor-owned utility. Its homes paid about 16.1¢ per kWh in 2025 (EIA).

What internet providers serve Casstown?

Spectrum, Frontier, AT&T, Verizon (FCC, as of December 2025).

What ZIP codes are in Casstown?

45312. Census 2020 ZIP Code Tabulation Areas.

What school district is Casstown in?

Miami East Local School District.

How do I register to vote in Casstown?

In Ohio you can register online until 30 days before Election Day, in person until 30 days before Election Day, or by mail (postmarked 30 days before). Elections here are run by the Director, Miami County Board of Elections. Check your registration at voterlookup.ohiosos.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.