Living in Coalfield, TN: what to set up and who to call
Cumberland Utility District reported 2 health-based violations to EPA in the last five years: disinfection byproducts (TTHM) ×2. 83% of systems its size reported none. Coalfield has no town government of its own, so Morgan County runs its elections and most services, and its children attend Morgan County School District.
I’m new in town
What to set up in Coalfield, 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 Coalfield.
Power comes from City of Clinton
City of Clinton (City of Clinton - (TN)), a municipal utility, serves 65.4% of Coalfield residents. Its homes paid an average of 13.7¢ per kWh in 2025, about $167 a month (its average across Tennessee).
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Cumberland Utility District
Cumberland Utility District supplies almost all of Coalfield. It draws surface water and serves 14,085 people in all.
2 health-based violations reported to EPA in the five years to October 2026: disinfection byproducts (TTHM) ×2, the latest beginning Jan 2023. 83% of the 3,525 systems serving 10,001–50,000 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2023–Dec 2025, was 0.3 ppb, below the 15 ppb action level that applied. The highest in five years was 1.5 ppb. That’s lower 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. Violations are counted by the start of their compliance period. TN0000531.
5 home internet providers serve Coalfield
100% of 1,019 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Highland Telephone Cooperative | Fiber | 100% | 1,000/1,000 |
| Xfinity | Cable | 71% | 2,000/250 |
| AT&T | DSL, Fixed wireless | 31% | 50/10 |
| Verizon | Fixed wireless | 65% | 300/20 |
| T-Mobile | Fixed wireless | 47% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Coalfield’s trash rules yet
Pickup rules, the dump and recycling in Coalfield.
Where your child goes to school
Public school districts and the school path by grade.
Coalfield is in Morgan County School District.
C−School gradeSee Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
No town hall: the county runs things
Coalfield is unincorporated, so Morgan County is the local government.
Election office: FVAP local election office directory, updated Sep 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Coalfield spans 3 ZIP codes
ZIP codes where Coalfield residents live, with the share of the town in each.
| ZIP | Post office name | Share of Coalfield | ZIP’s residents in Coalfield |
|---|---|---|---|
| 37840 | Oliver Springs, TN | 64% | 16% |
| 37748 | Harriman, TN | 29% | 4% |
| 37719 | Coalfield, TN | 7% | 100% |
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 Coalfield
Who supplies Coalfield’s drinking water, and has it had violations?
Cumberland Utility District (EPA ID TN0000531). It reported 2 health-based violations to EPA in the five years to October 2026: disinfection byproducts (TTHM) ×2. 83% of systems its size had none. Its latest lead 90th percentile was 0.3 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Coalfield?
City of Clinton (City of Clinton - (TN)), a municipal utility. Its homes paid about 13.7¢ per kWh in 2025 (EIA).
What internet providers serve Coalfield?
Highland Telephone Cooperative, Xfinity, AT&T, Verizon, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Coalfield?
37840 (64%), 37748 (29%), 37719 (7%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Coalfield in?
Morgan County School District.
How do I register to vote in Coalfield?
In Tennessee 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 Morgan County Election Commission. Check your registration at tnmap.tn.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 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.