08628 ZIP Code, Trenton, NJ
08628 is a ZIP code in Trenton, New Jersey in Mercer County. It covers 7.7 square miles of land. The closest ZIP codes are 08618, 18977 and 19067. 9,831 people live here in 4,468 households. At about 1,276 people per square mile it has suburban density, and owners and renters are mixed (60% own). Median household income is $108,158, close to the New Jersey median of $103,556; the median age is 45.0, older than most ZIP codes.
Quick facts
- Mailing city: Trenton, NJ
- County: Mercer County
- Land area: 7.7 sq mi
- Population: 9,831
- Median household income: $108,158
- Carrier routes: 8 (5,271 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 9,831 |
| Households | 4,468 |
| Median household income | $108,158 |
| Income per person | $62,421 |
| Median age | 45 |
| Homeowners | 59.5% |
| Median home value | $369,500 |
| Median rent | $1,775 |
| Bachelor's degree or higher | 59.6% |
| Average commute (minutes) | 26 |
| Households with kids under 18 | 17.3% |
| Moved in the past year | 15.6% |
| Below the poverty line | 5.6% |
| Broadband internet | 96.8% |
| Speak a non-English language at home | 15.5% |
Household income
| % of households | Value |
|---|---|
| <$10K | 2.3% |
| $10–15K | 1.1% |
| $15–25K | 2.0% |
| $25–35K | 6.0% |
| $35–50K | 4.3% |
| $50–75K | 18.8% |
| $75–100K | 12.4% |
| $100–150K | 17.3% |
| $150–200K | 17.2% |
| $200K+ | 18.5% |
Age
| % of all residents | Value |
|---|---|
| <10 | 8.8% |
| 10–19 | 5.8% |
| 20–24 | 4.5% |
| 25–34 | 16.2% |
| 35–44 | 14.7% |
| 45–54 | 11.9% |
| 55–64 | 15.7% |
| 65–74 | 12.3% |
| 75+ | 10.1% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 30.0% |
| Owned outright | 29.1% |
| Rented | 39.0% |
| Vacant | 1.9% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 44.0% |
| Townhome | 10.7% |
| 2–4 units | 5.4% |
| 5–19 units | 29.8% |
| 20+ units | 9.2% |
| Mobile / other | 0.8% |
Businesses in 08628
353 business establishments with 11,975 employees (ZIP Codes Business Patterns 2023).
- Accommodation and Food Services: 52
- Professional, Scientific, and Technical Services: 47
- Health Care and Social Assistance: 39
- Other Services (except Public Administration): 37
- Administrative and Support and Waste Management and Remediation Services: 33
- Retail Trade: 30
- Construction: 16
- Finance and Insurance: 16
EDDM carrier routes
08628 has 8 USPS carrier routes with 5,271 residential and 389 business mailboxes. Open the EDDM route map.
Carrier routes in 08628
08628 has 8 USPS carrier routes (8 city (C)) with 5,271 residential and 389 business mailboxes. Routes range from 344 homes (C064) to 1,262 homes (C028); the median route has 624 homes. The Census counted 4,468 households in 08628 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 3 |
| 500–749 | 3 |
| 750–999 | 1 |
| 1,000–1,499 | 1 |
| 1,500+ | 0 |
Best routes in 08628 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C064 — USPS business mailboxes 158, 344 homes
- Route C028 — USPS business mailboxes 91, 1,262 homes
- Route C048 — USPS business mailboxes 68, 642 homes
- Route C093 — USPS business mailboxes 34, 606 homes
- Route C098 — USPS business mailboxes 26, 430 homes
Select these 5 routes on the route map
Every carrier route in 08628
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C003 | City | 847 | 1 | $110,146 | — | — | — |
| C028 | City | 1,262 | 91 | $90,798 | — | — | — |
| C048 | City | 642 | 68 | $110,146 | — | — | — |
| C049 | City | 453 | 3 | $110,146 | — | — | — |
| C062 | City | 687 | 8 | $90,798 | — | — | — |
| C064 | City | 344 | 158 | $106,214 | — | — | — |
| C093 | City | 606 | 34 | $98,558 | — | — | — |
| C098 | City | 430 | 26 | $90,798 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 08628 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
- 08618 — Trenton city, NJ (2.2 mi)
- 18977 (2.8 mi)
- 19067 — Morrisville borough, PA (2.9 mi)
- 08638 — Trenton city, NJ (3.4 mi)
- 08560 — Titusville CDP, NJ (3.9 mi)
- 08608 — Trenton city, NJ (4.5 mi)
- 08534 — Pennington borough, NJ (4.8 mi)
- 08609 — Trenton city, NJ (5.3 mi)
Areas that include 08628
- Trenton, NJ ZIP codes — 11 ZIP codes
- Mercer County ZIP codes — 23 ZIP codes
- New Jersey ZIP code data
Where it ranks
- No. 5 of 22: highest share of residents who moved in during the past year in Mercer County
- No. 6 of 22: highest median age in Mercer County
- No. 4 of 20: fastest population growth in Mercer County
- No. 2 of 11: highest median household income in Trenton, NJ
- No. 3 of 11: highest median home value in Trenton, NJ
- No. 1 of 11: highest share of residents who moved in during the past year in Trenton, NJ
- No. 2 of 11: highest median age in Trenton, NJ
- No. 4 of 10: fastest population growth in Trenton, NJ
Mail every home in 08628
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) 08628, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 08628 in?
- 08628 is a Trenton, NJ mailing address. By land area, 2% lies inside Trenton; the rest is outside any Census-defined city or community.
- What county is 08628 in?
- 08628 is in Mercer County.
- What is the population of 08628?
- About 9,831 people (±856), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 10,310.
- What is the median household income in 08628?
- $108,158 (±$20,674), compared with $103,556 for New Jersey as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 08628?
- 8 USPS carrier routes with 5,271 residential and 389 business mailboxes (5,660 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 08628?
- The closest, measured center to center: 08618 (2.2 mi, Trenton), 18977 (2.8 mi), 19067 (2.9 mi, Morrisville borough, PA), 08638 (3.4 mi, Trenton), 08560 (3.9 mi, Titusville) and 08608 (4.5 mi, Trenton).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.