Somersworth, NH ZIP Codes
One ZIP code serves Somersworth, New Hampshire: 03878. Together they are home to 12,205 residents in 5,245 households.
Somersworth city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 12,111 |
| Households | 5,201 |
| Median household income | $74,504 |
| Median home value | $318,400 |
| Median age | 38.4 |
| Median rent | $1,477 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 12,205 |
| Households (sum of ZIP codes) | 5,245 |
| Median household income, range across ZIP codes | $75,136 (03878) to $75,136 (03878) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $75,136 |
| Homeowners | 58.0% |
| Households with kids under 18 | 29.1% |
| Moved in the past year | 18.9% |
| Carrier routes in EDDM2GO's route library | 10 routes, 5,583 homes (1 of 1 ZIP codes) |
Every ZIP code in Somersworth
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 03878 | Somersworth | 12,205 | 5,245 | $75,136 | $317,900 | 58.0% | 29.1% | 18.9% | 10 | 5,959 | 100% of its land; mailing city |
A ZIP code is listed for Somersworth when at least 10% of its land lies inside Somersworth city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Somersworth. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Somersworth.
Counties
- Strafford County — 16 ZIP codes
Price a mailing to Somersworth ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Somersworth, NH?
- 03878. A ZIP code is listed for Somersworth when at least 10% of its land lies inside Somersworth city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Somersworth.
- What is the population of Somersworth, NH?
- The Census Bureau counts 12,111 residents inside Somersworth city limits (ACS 2020–2024). The 1 ZIP code that serve Somersworth hold 12,205 residents in all.
- What is the median household income in Somersworth, NH?
- $74,504 inside Somersworth city limits, per the Census Bureau. Across its ZIP codes the medians run from $75,136 to $75,136.
- How many carrier routes and mailboxes are in Somersworth, NH?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 10 carrier routes reaching 5,583 residential and 375 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.