Photo: Chillin662 · CC BY-SA 4.0Living in Derma, MS: what to set up and who to call
Tap water in Derma comes from the Town of Derma water system, which has a clean five-year EPA record (about 22% of systems its size had a health-based violation) and a latest lead result of 0.7 ppb. Power in Derma comes from Delta Electric Power Assn, a cooperative utility rather than a private company.
I’m new in town
What to set up in Derma, 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 Derma.
Power comes from Delta Electric Power Assn
Delta Electric Power Assn (Delta Electric Power Assn), a cooperative utility, serves all of Derma. Its homes paid an average of 12.7¢ per kWh in 2025, about $130 a month (its average across Mississippi).
Start or move service: deltaepa.com
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Town of Derma water system
The Town of Derma water system supplies Derma: about 92% of residents live in its service area. About 8% 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 957 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 5,327 systems serving 501–1,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2023–Dec 2025, was 0.7 ppb, below the 15 ppb action level that applied. The highest in five years was 1.2 ppb. That’s lower than 55% 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. MS0070006.
5 home internet providers serve Derma
100% of 514 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| NT Spark | Fiber | 100% | 1,000/1,000 |
| BCI Mississippi Broadband | Cable | 93% | 1,000/20 |
| TDS Telecom | DSL | 88% | 25/5 |
| C Spire | Fixed wireless | 100% | 100/20 |
| T-Mobile | Fixed wireless | 49% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Derma’s trash rules yet
Pickup rules, the dump and recycling in Derma.
Where your child goes to school
Public school districts and the school path by grade.
Derma is in Calhoun County 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.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Sep 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Derma spans 2 ZIP codes
ZIP codes where Derma residents live, with the share of the town in each.
| ZIP | Post office name | Share of Derma | ZIP’s residents in Derma |
|---|---|---|---|
| 38916 | Calhoun City, MS | 92% | 20% |
| 38839 | Derma, MS | 8% | 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 Derma
Who supplies Derma’s drinking water, and has it had violations?
The Town of Derma water system (EPA ID MS0070006). It reported no health-based violations to EPA in the five years to October 2026; 78% of systems its size had none. Its latest lead 90th percentile was 0.7 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Derma?
Delta Electric Power Assn (Delta Electric Power Assn), a cooperative utility. Its homes paid about 12.7¢ per kWh in 2025 (EIA).
What internet providers serve Derma?
NT Spark, BCI Mississippi Broadband, TDS Telecom, C Spire, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Derma?
38916 (92%), 38839 (8%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Derma in?
Calhoun County School District.
How do I register to vote in Derma?
Mississippi has no online registration; you can register in person until 30 days before Election Day or by mail (postmarked 30 days before). Elections here are run by the Calhoun County Registrar. Check your registration at msegov.com.
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.