Photo: Jerrye & Roy Klotz, MD · CC BY-SA 4.0Living in Joppatowne, MD: what to set up and who to call
Joppatowne has no town government of its own, so Harford County runs its elections and most services, and its children attend Harford County Public Schools. The closest public drop-off to Joppatowne is Baltimore County Landfill, 2 miles out; the town decides whether residents may use it.
I’m new in town
What to set up in Joppatowne, 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 Joppatowne.
Power comes from Baltimore Gas & Electric
Baltimore Gas & Electric (Baltimore Gas & Electric Co), an investor-owned utility, serves all of Joppatowne. Its homes paid an average of 20.2¢ per kWh in 2025, about $177 a month (its average across Maryland, for customers on its standard service). Maryland lets you buy power from another supplier; 6% of Baltimore Gas & Electric’s home customers do, and Baltimore Gas & Electric still delivers it.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Harford County D.p.w. water system
The Harford County D.p.w. water system supplies almost all of Joppatowne. It draws surface water (EPA lists Maryland American Water Company and City of Havre De Grace as sellers) and serves 104,567 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. MD0120016.
4 home internet providers serve Joppatowne
100% of 4,699 addresses can get 100/20 Mbps; 92% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 99% | 2,000/250 |
| Verizon | Fiber, Fixed wireless | 92% | 980/880 |
| T-Mobile | Fixed wireless | 67% | 100/20 |
| AT&T | Fixed wireless | 41% | 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 2 miles away
Pickup rules, the dump and recycling in Joppatowne.
Baltimore County Landfill
6259 Days Cove Road, 21162
This isn’t Joppatowne’s own facility. Whether Joppatowne 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.
Joppatowne is in Harford 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
Joppatowne is unincorporated, so Harford County is the local government.
Election office: FVAP local election office directory, updated Mar 2018; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Mar 11, 2026.
Joppatowne is in ZIP code 21085
ZIP codes where Joppatowne residents live, with the share of the town in each.
| ZIP | Post office name | Share of Joppatowne | ZIP’s residents in Joppatowne |
|---|---|---|---|
| 21085 | Joppa, MD | 100% | 78% |
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 Joppatowne
Who supplies Joppatowne’s drinking water, and has it had violations?
The Harford County D.p.w. water system (EPA ID MD0120016). 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 Joppatowne?
Baltimore Gas & Electric (Baltimore Gas & Electric Co), an investor-owned utility. Its homes paid about 20.2¢ per kWh in 2025 (EIA).
What internet providers serve Joppatowne?
Xfinity, Verizon, T-Mobile, AT&T (FCC, as of December 2025).
What ZIP codes are in Joppatowne?
21085. Census 2020 ZIP Code Tabulation Areas.
What school district is Joppatowne in?
Harford County Public Schools.
How do I register to vote in Joppatowne?
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 Harford 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.