ZIP 03104 falls in Hillsborough County, New Hampshire. We have not measured septic data for this county yet. The county page below has what we do know: where records are kept and whether the portal is public.
ZCTA 03104 is not entirely inside one county. Land-area share is from the 2020 Census ZCTA-to-county relationship file.
| County | Land in this ZIP | Documents held | On septic (county) | On sewer (county) |
|---|---|---|---|---|
| Hillsborough County, New Hampshire | 100% | — | — | — |
| Merrimack County, New Hampshire | 0% | — | — | — |
| Rockingham County, New Hampshire | 0% | — | — | — |
2 businesses on record with an address in this ZIP: pumping, installation, design, inspection and repair. Not an endorsement, and we take no fee.
| Company | City | Phone | Rating |
|---|---|---|---|
| Clifford Excavation | Manchester | (603) 273-7606 | — |
| Rooter-Man of Southern New Hampshire | Manchester | (603) 883-4882 | — |
Land-area overlap is from the 2020 Census Bureau ZCTA5-to-county relationship file, not an estimate of ours. Parcel and document counts are rows we hold, not a survey of every property in the ZIP. Last verified 2026-09-01.
We have not measured septic-versus-sewer status for this county yet.
ZIP 03104 spans 3 counties: Hillsborough County, New Hampshire, Merrimack County, New Hampshire, Rockingham County, New Hampshire.