03055 ZIP Code, Milford, NH
03055 is a ZIP code in Milford, New Hampshire in Hillsborough County. It covers 25 square miles of land. The closest ZIP codes are 03086, 03033 and 03031. 16,337 people live here in 6,399 households, more than in 9 of every 10 New Hampshire ZIP codes. With about 643 people per square mile it is lightly settled, and owners and renters are mixed (65% own). Median household income is $97,768, close to the New Hampshire median of $99,031.
Quick facts
- Mailing city: Milford, NH
- County: Hillsborough County
- Land area: 25 sq mi
- Population: 16,337
- Median household income: $97,768
- Carrier routes: 12 (6,819 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 16,337 |
| Households | 6,399 |
| Median household income | $97,768 |
| Income per person | $49,165 |
| Median age | 36.8 |
| Homeowners | 64.9% |
| Median home value | $398,800 |
| Median rent | $1,661 |
| Bachelor's degree or higher | 37.2% |
| Average commute (minutes) | 27 |
| Households with kids under 18 | 35.5% |
| Moved in the past year | 15.7% |
| Below the poverty line | 3.9% |
| Broadband internet | 97.3% |
| Speak a non-English language at home | 11.0% |
Household income
| % of households | Value |
|---|---|
| <$10K | 1.6% |
| $10–15K | 1.7% |
| $15–25K | 4.2% |
| $25–35K | 2.9% |
| $35–50K | 8.6% |
| $50–75K | 16.8% |
| $75–100K | 14.8% |
| $100–150K | 20.7% |
| $150–200K | 13.4% |
| $200K+ | 15.3% |
Age
| % of all residents | Value |
|---|---|
| <10 | 12.2% |
| 10–19 | 13.7% |
| 20–24 | 3.9% |
| 25–34 | 17.7% |
| 35–44 | 14.4% |
| 45–54 | 12.0% |
| 55–64 | 11.1% |
| 65–74 | 8.3% |
| 75+ | 6.8% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 47.9% |
| Owned outright | 15.5% |
| Rented | 33.6% |
| Vacant | 3.0% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 51.8% |
| Townhome | 5.4% |
| 2–4 units | 19.9% |
| 5–19 units | 4.8% |
| 20+ units | 13.8% |
| Mobile / other | 4.3% |
Businesses in 03055
411 business establishments with 6,338 employees (ZIP Codes Business Patterns 2023).
- Retail Trade: 70
- Other Services (except Public Administration): 53
- Construction: 50
- Accommodation and Food Services: 46
- Administrative and Support and Waste Management and Remediation Services: 38
- Health Care and Social Assistance: 35
- Manufacturing: 28
- Professional, Scientific, and Technical Services: 25
EDDM carrier routes
03055 has 12 USPS carrier routes with 6,819 residential and 457 business mailboxes. Open the EDDM route map.
Carrier routes in 03055
03055 has 12 USPS carrier routes (6 city (C), 6 rural (R)) with 6,819 residential and 457 business mailboxes. Routes range from 268 homes (C003) to 812 homes (C001); the median route has 573 homes. The Census counted 6,399 households in 03055 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 4 |
| 500–749 | 6 |
| 750–999 | 2 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 03055 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R004 — USPS business mailboxes 100, 503 homes
- Route R005 — USPS business mailboxes 88, 476 homes
- Route C006 — USPS business mailboxes 83, 632 homes
- Route C004 — USPS business mailboxes 49, 465 homes
- Route C001 — USPS business mailboxes 39, 812 homes
Select these 5 routes on the route map
Every carrier route in 03055
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 812 | 39 | $58,372 | — | — | — |
| C002 | City | 513 | 7 | $106,507 | — | — | — |
| C003 | City | 268 | 2 | $88,255 | — | — | — |
| C004 | City | 465 | 49 | $104,756 | — | — | — |
| C005 | City | 410 | 38 | $75,855 | — | — | — |
| C006 | City | 632 | 83 | $75,855 | — | — | — |
| R001 | Rural | 636 | 24 | $185,805 | — | — | — |
| R002 | Rural | 750 | 8 | $134,376 | — | — | — |
| R003 | Rural | 699 | 13 | $143,791 | — | — | — |
| R004 | Rural | 503 | 100 | $106,507 | — | — | — |
| R005 | Rural | 476 | 88 | $143,791 | — | — | — |
| R006 | Rural | 655 | 6 | $143,791 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 03055 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 03086 — Wilton CDP, NH (4.5 mi)
- 03033 (4.8 mi)
- 03031 — Amherst CDP, NH (5.4 mi)
- 03057 (6.3 mi)
- 03049 (6.5 mi)
- 03048 — Greenville CDP, NH (6.9 mi)
- 03082 (7.2 mi)
- 03054 — East Merrimack CDP, NH (8.1 mi)
Areas that include 03055
- Milford, NH ZIP codes — 1 ZIP code
- Wilton, NH ZIP codes — 2 ZIP codes
- Hillsborough County ZIP codes — 34 ZIP codes
- New Hampshire ZIP code data
Where it ranks
- No. 6 of 34: highest share of households with children in Hillsborough County
- No. 5 of 34: highest share of residents who moved in during the past year in Hillsborough County
- No. 4 of 34: lowest median age in Hillsborough County
Mail every home in 03055
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 03055, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 03055 in?
- 03055 is a Milford, NH mailing address. By land area, 22% lies inside Milford and 3% lies inside Wilton; the rest is outside any Census-defined city or community.
- What county is 03055 in?
- 03055 is in Hillsborough County.
- What is the population of 03055?
- About 16,337 people (±37), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 16,120.
- What is the median household income in 03055?
- $97,768 (±$14,299), compared with $99,031 for New Hampshire as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 03055?
- 12 USPS carrier routes with 6,819 residential and 457 business mailboxes (7,277 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 03055?
- The closest, measured center to center: 03086 (4.5 mi, Wilton), 03033 (4.8 mi), 03031 (5.4 mi, Amherst), 03057 (6.3 mi), 03049 (6.5 mi) and 03048 (6.9 mi, Greenville).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.