Photo: Elvert Barnes · CC BY-SA 2.0Living in Largo, MD: what to set up and who to call
Largo has no town government of its own, so Prince George's County runs its elections and most services, and its children attend Prince George's County Public Schools. The closest public drop-off to Largo is Auto Recycling Yard, 5 miles out; the town decides whether residents may use it.
I’m new in town
What to set up in Largo, 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 Largo.
Power comes from Potomac Electric Power
Potomac Electric Power (Potomac Electric Power Co), an investor-owned utility, serves all of Largo. Its homes paid an average of 21.7¢ per kWh in 2025, about $182 a month (its average across Maryland, for customers on its standard service). Maryland lets you buy power from another supplier; 5% of Potomac Electric Power’s home customers do, and Potomac Electric Power still delivers it.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from WSSC Water
WSSC Water supplies almost all of Largo. It draws surface water and serves 1,900,000 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 82% of the 27 systems serving more than 1,000,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2018–Dec 2020, was 0.0 ppb, below the 15 ppb action level that applied. It’s from 2020: EPA has no newer result for this system. 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. MD0150005.
4 home internet providers serve Largo
100% of 2,459 addresses can get 100/20 Mbps; 92% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 100% | 2,000/250 |
| Verizon | Fiber, Fixed wireless | 100% | 2,300/2,300 |
| T-Mobile | Fixed wireless | 65% | 100/20 |
| AT&T | Fixed wireless | 53% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
The nearest public drop-off is 5 miles away
Pickup rules, the dump and recycling in Largo.
Auto Recycling Yard
This isn’t Largo’s own facility. Whether Largo residents may use it is the town’s rule: check the town’s office.
OpenStreetMap, as of Oct 9, 2026. © OpenStreetMap contributors.
Where your child goes to school
Public school districts and the school path by grade.
Largo is in Prince George's County Public Schools.
DSchool 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
Largo is unincorporated, so Prince George's County is the local government.
Election office: FVAP local election office directory, updated Jul 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Mar 11, 2026.
Largo is in ZIP code 20774
ZIP codes where Largo residents live, with the share of the town in each.
| ZIP | Post office name | Share of Largo | ZIP’s residents in Largo |
|---|---|---|---|
| 20774 | Upper Marlboro, MD | 100% | 22% |
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 Largo
Who supplies Largo’s drinking water, and has it had violations?
WSSC Water (EPA ID MD0150005). It reported no health-based violations to EPA in the five years to October 2026; 82% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2018–Dec 2020), against a 15 ppb action level.
Who provides electricity in Largo?
Potomac Electric Power (Potomac Electric Power Co), an investor-owned utility. Its homes paid about 21.7¢ per kWh in 2025 (EIA).
What internet providers serve Largo?
Xfinity, Verizon, T-Mobile, AT&T (FCC, as of December 2025).
What ZIP codes are in Largo?
20774. Census 2020 ZIP Code Tabulation Areas.
What school district is Largo in?
Prince George's County Public Schools.
How do I register to vote in Largo?
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 Prince George's 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: 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 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.