Frieda Fromm-Reichmann Cottage · Photo: Farragutful · CC BY-SA 4.0Living in Rockville, MD: what to set up and who to call
The closest public drop-off to Rockville is Shady Grove Recycling Center, 3 miles out; the town decides whether residents may use it. Rockville has its own train station.
I’m new in town
What to set up in Rockville, 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 Rockville.
Power comes from Potomac Electric Power
Potomac Electric Power (Potomac Electric Power Co), an investor-owned utility, serves all of Rockville. 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 City of Rockville water system
The City of Rockville water system supplies Rockville: about 75% of residents live in its service area. WSSC Water serves another 26%. It draws surface water (EPA lists WSSC Water as seller) and serves 52,000 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–Jun 2018, was 0.0 ppb, below the 15 ppb action level that applied. It’s from 2018: 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. MD0150003.
4 home internet providers serve Rockville
100% of 15,031 addresses can get 100/20 Mbps; 92% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable, Fiber | 99% | 2,000/250 |
| Verizon | Fiber, Fixed wireless | 98% | 2,300/2,300 |
| T-Mobile | Fixed wireless | 52% | 100/20 |
| AT&T | Fixed wireless | 44% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in Rockville depends on your street
Pickup days, the drop-off and recycling in Rockville, from the town’s own site.
Your pickup week
- TrashEvery week, on your street’s dayFind your street’s day on rockvillemd.gov →
- RecyclingEvery week
- Bulky itemsCall to book
Holidays change the pickup schedule: check the town’s calendar for those weeks.
Accepted at the curb
- Empty aluminum and tin food and beverage cans
- Empty glass bottles and jars
- Empty plastic bottles, tubs, jars, and jugs, including rigid plastic
- Clean paper, cartons, and cardboard
- Mixed paper
- Polypropylene plastic and paper to-go cups
Maintenance Facility
14625 Rothgeb Drive
Senior Center
1150 Carnation Drive
Twinbrook Community Recreation Center
12920 Twinbrook Parkway
From rockvillemd.gov, the town’s official site, checked Oct 21, 2026; pages dated 2026, 2026-04-22, 2026-04-22T18:25:35+00:00, 2026-04-22T19:47:57+00:00. 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.
Rockville is in Montgomery County Public Schools.
B+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 Aug 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Mar 11, 2026.
Rockville spans 4 ZIP codes
ZIP codes where Rockville residents live, with the share of the town in each.
| ZIP | Post office name | Share of Rockville | ZIP’s residents in Rockville |
|---|---|---|---|
| 20850 | Rockville, MD | 56% | 73% |
| 20852 | Rockville, MD | 18% | 26% |
| 20851 | Rockville, MD | 18% | 83% |
| 20854 | Potomac, MD | 7% | 9% |
A few homes fall in 20855, 20853. 20847, 20848, 20849, 20857 are P.O. box or single-organization ZIPs 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 Rockville
Who supplies Rockville’s drinking water, and has it had violations?
The City of Rockville water system (EPA ID MD0150003). 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 0.0 ppb (Jan–Jun 2018), against a 15 ppb action level.
Who provides electricity in Rockville?
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 Rockville?
Xfinity, Verizon, T-Mobile, AT&T (FCC, as of December 2025).
What ZIP codes are in Rockville?
20850 (56%), 20852 (18%), 20851 (18%), 20854 (7%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Rockville in?
Montgomery County Public Schools.
How do I register to vote in Rockville?
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 Montgomery 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: Rockville’s own website (rockvillemd.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.