| City: | Portsmouth, New Hampshire |
| County: | Rockingham County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 7:58:19 PM |
| Population: | No Population Data |
| Area Code: | 603 |
| Classification: | PO Box |
| Coordinates: | 43.0719, -70.7632 |
| Quick Link: |
Despite being classified as a PO Box-only ZIP, this designation supports considerable commercial activity. The zone contains 449 business addresses and maintains 292 unique ZIP+4 delivery codes. Heritage Ave is the sole street associated with this ZIP code, hosting 123 units that likely represent a large residential or commercial complex using centralized mail service. The high ratio of PO Boxes to street addresses reflects Portsmouth's status as a regional commercial center where businesses prefer dedicated box service for reliability and security.
Only one street appears in this ZIP's records: Heritage Ave, which contains 123 units requiring unit-specific delivery (apartments, condos, or office suites). This single-street profile confirms that 03802 isn't a geographic community but an administrative postal facility.
ZIP Code 03802 supports both business and residential activity. According to the Business Census (2024), there are 18 business establishments, employing about 190 people with an annual payroll of $12,732,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 2,685Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 18Source: CBP |
| 1st Quarter Payroll: | $3,168,000Source: CBP |
| Annual Payroll: | $12,732,000Source: CBP |
| # of Employees: | 190Source: CBP |
ZIP Code 03802 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 03802, 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 03802 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 February 1, 2026.