Photo: Matthew Binebrink · CC BY-SA 4.0Living in Frederick, MD: what to set up and who to call
Frederick spans 3 ZIP codes; 21702 holds the most residents (47%). Frederick has its own train station.
I’m new in town
What to set up in Frederick, 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 Frederick.
Power comes from Potomac Edison
Potomac Edison (The Potomac Edison Co.), an investor-owned utility, serves all of Frederick. Its homes paid an average of 15.4¢ per kWh in 2025, about $172 a month (its average across Maryland, for customers on its standard service). Maryland lets you buy power from another supplier; 2% of Potomac Edison’s home customers do, and Potomac Edison still delivers it.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Frederick water system
The City of Frederick water system supplies Frederick: about 96% of residents live in its service area. It draws surface water (EPA lists New Design - Frederick County as seller) and serves 54,000 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 90% of the 597 systems serving 50,001–100,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2019–Dec 2021, was 1.1 ppb, below the 15 ppb action level that applied. That’s lower than 50% 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. MD0100015.
5 home internet providers serve Frederick
100% of 21,876 addresses can get 100/20 Mbps; 48% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable, Fiber | 100% | 2,000/250 |
| Verizon | Fixed wireless, Fiber | 62% | 980/880 |
| Glo Fiber | Fiber | 50% | 8,000/8,000 |
| AT&T | Fixed wireless | 51% | 100/20 |
| T-Mobile | Fixed wireless | 31% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in Frederick depends on your street
Pickup days, the drop-off and recycling in Frederick, from the town’s own site.
Your pickup week
- TrashEvery week, on your street’s dayFind your street’s day on cityoffrederickmd.gov →
From cityoffrederickmd.gov, the town’s official site, checked Oct 21, 2026; pages dated 5/9/2023, May 1, 2006. Rules change: the town’s page is the last word. .
Where your child goes to school
Public school districts and the school path by grade.
Frederick is in Frederick County Public Schools.
A−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 Jul 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Mar 11, 2026.
Frederick spans 3 ZIP codes
ZIP codes where Frederick residents live, with the share of the town in each.
| ZIP | Post office name | Share of Frederick | ZIP’s residents in Frederick |
|---|---|---|---|
| 21702 | Frederick, MD | 47% | 79% |
| 21701 | Frederick, MD | 37% | 73% |
| 21703 | Frederick, MD | 16% | 31% |
A few homes fall in 21704, 21705. 21709 is P.O. box or single-organization ZIP with no homes.
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.
Train: OpenStreetMap (© OpenStreetMap contributors). ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Frederick
Who supplies Frederick’s drinking water, and has it had violations?
The City of Frederick water system (EPA ID MD0100015). It reported no health-based violations to EPA in the five years to October 2026; 90% of systems its size had none. Its latest lead 90th percentile was 1.1 ppb (Jan 2019–Dec 2021), against a 15 ppb action level.
Who provides electricity in Frederick?
Potomac Edison (The Potomac Edison Co.), an investor-owned utility. Its homes paid about 15.4¢ per kWh in 2025 (EIA).
What internet providers serve Frederick?
Xfinity, Verizon, Glo Fiber, AT&T, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Frederick?
21702 (47%), 21701 (37%), 21703 (16%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Frederick in?
Frederick County Public Schools.
How do I register to vote in Frederick?
In Maryland you can register online until 21 days before Election Day, in person up to and including Election Day, or by mail (postmarked 21 days before). Elections here are run by the Frederick County Board of Elections. Check your registration at voterservices.elections.maryland.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: Frederick’s own website (cityoffrederickmd.gov), read Oct 21, 2026, pickup and drop-off facts extracted and checked against the page they came from.
- 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 Mar 11, 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.