Living in Herald Harbor, MD: what to set up and who to call
Herald Harbor has no town government of its own, so Anne Arundel County runs its elections and most services, and its children attend Anne Arundel County Public Schools. Almost every address in Herald Harbor can get fiber (98%, by the FCC’s map).
I’m new in town
What to set up in Herald Harbor, 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 Herald Harbor.
Power comes from Baltimore Gas & Electric
Baltimore Gas & Electric (Baltimore Gas & Electric Co), an investor-owned utility, serves all of Herald Harbor. 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 Herald Harbor water system
The Herald Harbor water system supplies Herald Harbor: about 87% of residents live in its service area. About 13% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws ground water and serves 2,241 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 7,966 systems serving 1,001–3,300 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2017–Dec 2019, was 0.0 ppb, below the 15 ppb action level that applied. It’s from 2019: 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. MD0020044.
5 home internet providers serve Herald Harbor
100% of 1,228 addresses can get 100/20 Mbps; 98% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Verizon | Fiber, Fixed wireless | 99% | 980/880 |
| Xfinity | Cable | 99% | 2,000/250 |
| T-Mobile | Fixed wireless | 60% | 100/20 |
| Believe Broadband | Fixed wireless | 36% | 500/100 |
| AT&T | Fixed wireless | 2% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Herald Harbor’s trash rules yet
Pickup rules, the dump and recycling in Herald Harbor.
Where your child goes to school
Public school districts and the school path by grade.
Herald Harbor is in Anne Arundel 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.
No town hall: the county runs things
Herald Harbor is unincorporated, so Anne Arundel 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.
Herald Harbor is in ZIP code 21032
ZIP codes where Herald Harbor residents live, with the share of the town in each.
| ZIP | Post office name | Share of Herald Harbor | ZIP’s residents in Herald Harbor |
|---|---|---|---|
| 21032 | Crownsville, MD | 100% | 31% |
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 Herald Harbor
Who supplies Herald Harbor’s drinking water, and has it had violations?
The Herald Harbor water system (EPA ID MD0020044). It reported no health-based violations to EPA in the five years to October 2026; 78% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2017–Dec 2019), against a 15 ppb action level.
Who provides electricity in Herald Harbor?
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 Herald Harbor?
Verizon, Xfinity, T-Mobile, Believe Broadband, AT&T (FCC, as of December 2025).
What ZIP codes are in Herald Harbor?
21032. Census 2020 ZIP Code Tabulation Areas.
What school district is Herald Harbor in?
Anne Arundel County Public Schools.
How do I register to vote in Herald Harbor?
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 Anne Arundel 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.