| City: | Portsmouth, New Hampshire |
| County: | Rockingham County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 7:58:20 PM |
| Population: | No Population Data |
| Area Code: | 603 |
| Classification: | PO Box |
| Coordinates: | 43.0719, -70.7632 |
| Quick Link: |
The shipyard's physical addresses appear throughout 14 different streets on the installation, including Portsmouth Naval Shipyard (15 ZIP+4 records), Charles Morris Ave, Wyman Ave, and other base roads. Named buildings in the postal records include Navy Regional Med Ctr, Quarters, and multiple variations of the shipyard's name. The facility supports both active-duty personnel stationed at the base and civilian employees who work at one of the nation's oldest continuously operating naval shipyards.
This ZIP doesn't serve a traditional residential community. Instead, it functions as dedicated postal infrastructure for a federal military installation. The surrounding area receives street delivery through neighboring Portsmouth ZIP code 03801, which fully encloses this smaller military-specific zone. Mail routing separates base correspondence from civilian delivery, maintaining operational security and efficiency for Department of Defense mail.
The classification as SMALL_TOWN_HUB reflects the postal system's recognition that this isn't a conventional residential ZIP. With 2 street carrier routes and 1 rural route serving the installation, the delivery infrastructure supports both the shipyard's administrative functions and limited on-base housing in quarters. The mix of urban and rural carrier routes indicates the shipyard's layout includes both concentrated administrative areas and spread-out facilities across the island.
Street names honor U.S. Navy officers and historical military figures, with the majority of mail addressed simply to Portsmouth Naval Shipyard rather than specific street locations. Avenue names like Charles Morris, Wyman, Burrows, and Goodrich commemorate naval heroes, while infrastructure streets support the shipyard's operational facilities and limited on-base housing.
ZIP Code 03804 supports both business and residential activity. According to the Business Census (2024), there are 4 business establishments, employing about 83 people with an annual payroll of $4,332,000. USPS data shows 0 residential mailboxes and 1 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 1Source: USPS |
| Total Delivery Receptacles: | 68Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 4Source: CBP |
| 1st Quarter Payroll: | $1,078,000Source: CBP |
| Annual Payroll: | $4,332,000Source: CBP |
| # of Employees: | 83Source: CBP |
ZIP Code 03804 is located in Rockingham County, New Hampshire, within the Boston-Cambridge-Newton, MA-NH Metropolitan Statistical Area (CBSA 14460) and New Hampshire's 1st Congressional District. This Metro area has a population of 4,552,402 people, about 0.00% of whom live in ZIP Code 03804, and is subdivided into the Rockingham County-Strafford County, NH division. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Boston-Cambridge-Newton, MA-NHSource: Census |
| CBSA Number: | 14460Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | Rockingham County-Strafford County, NH (CBSA Div 40484)Source: Census |
| CBSA Population: | 4,552,402Source: Census |
| MSA: | Boston-Worcester-Lawrence, MA-NH-ME-CT CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 01Source: USPS |
| Congressional Land Area: | 2463.65 sq miSource: Census |
| PMSA: | Portsmouth-Rochester, NH-ME PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 3362900Source: Census |
| Place Name: | Portsmouth city; New HampshireSource: Census |
We could not locate which school district 03804 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on March 1, 2026.