Photo: Ben Schumin · CC BY-SA 3.0Living in Potomac Mills, VA: what to set up and who to call
Potomac Mills has no town government of its own, so Prince William County runs its elections and most services, and its children attend Prince William County Public Schools. Xfinity and Verizon both wire most of Potomac Mills; 89% of addresses can get fiber.
I’m new in town
What to set up in Potomac Mills, 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 Potomac Mills.
Power comes from Dominion Energy
Dominion Energy (Virginia Electric & Power Co.), an investor-owned utility, serves all of Potomac Mills. Its homes paid an average of 15.2¢ per kWh in 2025, about $158 a month (its average across Virginia).
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Pwcsa - East water system
The Pwcsa - East water system supplies Potomac Mills: about 94% of residents live in its service area. About 4% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated surface water (EPA lists Fairfax Water and Dale City as sellers) and serves 168,747 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 86% of the 332 systems serving 100,001–250,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2021–Dec 2023, was 0.0 ppb, below the 15 ppb action level that applied. Results below detection are reported as 0, so 0 doesn’t mean no lead at any tap.
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. VA6153600.
4 home internet providers serve Potomac Mills
100% of 1,511 addresses can get 100/20 Mbps; 89% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 99% | 2,000/250 |
| Verizon | Fiber, Fixed wireless | 96% | 2,300/2,300 |
| AT&T | Fixed wireless | 13% | 25/3 |
| T-Mobile | Fixed wireless | 9% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Potomac Mills’ trash rules yet
Pickup rules, the dump and recycling in Potomac Mills.
Where your child goes to school
Public school districts and the school path by grade.
Potomac Mills is in Prince William County Public Schools.
BSchool 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
Potomac Mills is unincorporated, so Prince William 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 Sep 30, 2026.
Potomac Mills spans 2 ZIP codes
ZIP codes where Potomac Mills residents live, with the share of the town in each.
| ZIP | Post office name | Share of Potomac Mills | ZIP’s residents in Potomac Mills |
|---|---|---|---|
| 22192 | Woodbridge, VA | 99% | 10% |
| 22193 | Woodbridge, VA | 1% | 0% |
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 Potomac Mills
Who supplies Potomac Mills’ drinking water, and has it had violations?
The Pwcsa - East water system (EPA ID VA6153600). It reported no health-based violations to EPA in the five years to October 2026; 86% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Potomac Mills?
Dominion Energy (Virginia Electric & Power Co.), an investor-owned utility. Its homes paid about 15.2¢ per kWh in 2025 (EIA).
What internet providers serve Potomac Mills?
Xfinity, Verizon, AT&T, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Potomac Mills?
22192 (99%), 22193 (1%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Potomac Mills in?
Prince William County Public Schools.
How do I register to vote in Potomac Mills?
In Virginia you can register online until 11 days before Election Day, in person up to and including Election Day, or by mail (postmarked 11 days before). Elections here are run by the Prince William General Registrar. Check your registration at vote.elections.virginia.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 Sep 30, 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.