Photo: Bwsmith84 · CC BY 3.0Living in Dennison, OH: what to set up and who to call
All of Dennison gets its mail under one ZIP code, 44621. Public schools here are run by Claymont City School District.
I’m new in town
What to set up in Dennison, 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 Dennison.
Power comes from AEP Ohio
AEP Ohio (Ohio Power Co.), an investor-owned utility, serves all of Dennison. Its homes paid an average of 19.0¢ per kWh in 2025, about $179 a month (its average across Ohio, for customers on its standard service). Ohio lets you buy power from another supplier; 60% of AEP Ohio’s home customers do, and AEP Ohio still delivers it.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Twin City Water and Sewer District PWS
Twin City Water and Sewer District PWS supplies Dennison: about 97% of residents live in its service area. About 3% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws ground water and serves 9,224 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.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 1.9 ppb, below the 15 ppb action level that applied. The highest in five years was 2.0 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 (EPA’s estimate). Violations are counted by the start of their compliance period. OH7901711.
5 home internet providers serve Dennison
99% of 1,128 addresses can get 100/20 Mbps; 1% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 96% | 1,000/35 |
| AT&T | Fixed wireless, DSL | 27% | 25/3 |
| Smart Way Communications | Fixed wireless | 97% | 250/50 |
| Watch Communications | Fixed wireless | 85% | 10/1 |
| Verizon | Fixed wireless | 20% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Dennison’s trash rules yet
Pickup rules, the dump and recycling in Dennison.
Where your child goes to school
Public school districts and the school path by grade.
Dennison is in Claymont City School District.
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 Dec 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.
Dennison is in ZIP code 44621
ZIP codes where Dennison residents live, with the share of the town in each.
| ZIP | Post office name | Share of Dennison | ZIP’s residents in Dennison |
|---|---|---|---|
| 44621 | Dennison, OH | 99% | 58% |
A few homes fall in 44683.
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 Dennison
Who supplies Dennison’s drinking water, and has it had violations?
Twin City Water and Sewer District PWS (EPA ID OH7901711). 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 1.9 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Dennison?
AEP Ohio (Ohio Power Co.), an investor-owned utility. Its homes paid about 19.0¢ per kWh in 2025 (EIA).
What internet providers serve Dennison?
Spectrum, AT&T, Smart Way Communications, Watch Communications, Verizon (FCC, as of December 2025).
What ZIP codes are in Dennison?
44621. Census 2020 ZIP Code Tabulation Areas.
What school district is Dennison in?
Claymont City School District.
How do I register to vote in Dennison?
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, Tuscarawas 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.
- 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 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.