08889 ZIP Code, Whitehouse Station, NJ
08889 is a ZIP code in Whitehouse Station, New Jersey in Hunterdon County. It covers 23 square miles of land. The closest ZIP codes are 08876, 08833 and 07921. 10,193 people live here in 4,333 households. With about 442 people per square mile it is lightly settled, and most homes are owner-occupied (91%). Median household income is $157,781, well above the New Jersey median of $103,556; the median age is 52.6, older than most ZIP codes.
Quick facts
- Mailing city: Whitehouse Station, NJ
- County: Hunterdon County
- Land area: 23 sq mi
- Population: 10,193
- Median household income: $157,781
- Carrier routes: 8 (4,309 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 10,193 |
| Households | 4,333 |
| Median household income | $157,781 |
| Income per person | $80,215 |
| Median age | 52.6 |
| Homeowners | 90.9% |
| Median home value | $542,300 |
| Median rent | $1,808 |
| Bachelor's degree or higher | 60.5% |
| Average commute (minutes) | 29.5 |
| Households with kids under 18 | 21.0% |
| Moved in the past year | 8.5% |
| Below the poverty line | 5.0% |
| Broadband internet | 93.8% |
| Speak a non-English language at home | 12.6% |
Household income
| % of households | Value |
|---|---|
| <$10K | 3.2% |
| $10–15K | 1.4% |
| $15–25K | 1.9% |
| $25–35K | 3.3% |
| $35–50K | 3.8% |
| $50–75K | 16.0% |
| $75–100K | 7.4% |
| $100–150K | 10.8% |
| $150–200K | 16.0% |
| $200K+ | 36.1% |
Age
| % of all residents | Value |
|---|---|
| <10 | 8.7% |
| 10–19 | 8.8% |
| 20–24 | 4.9% |
| 25–34 | 8.9% |
| 35–44 | 8.3% |
| 45–54 | 15.6% |
| 55–64 | 13.1% |
| 65–74 | 16.0% |
| 75+ | 15.9% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 52.2% |
| Owned outright | 37.6% |
| Rented | 8.7% |
| Vacant | 1.5% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 69.0% |
| Townhome | 21.8% |
| 2–4 units | 4.0% |
| 5–19 units | 1.4% |
| 20+ units | 3.9% |
| Mobile / other | 0.0% |
Businesses in 08889
250 business establishments with 4,944 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 38
- Construction: 37
- Accommodation and Food Services: 26
- Other Services (except Public Administration): 26
- Retail Trade: 25
- Finance and Insurance: 17
- Health Care and Social Assistance: 17
- Real Estate and Rental and Leasing: 14
EDDM carrier routes
08889 has 8 USPS carrier routes with 4,309 residential and 168 business mailboxes. Open the EDDM route map.
Carrier routes in 08889
08889 has 8 USPS carrier routes (8 rural (R)) with 4,309 residential and 168 business mailboxes. Routes range from 430 homes (R006) to 661 homes (R007); the median route has 536 homes. The Census counted 4,333 households in 08889 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 4 |
| 500–749 | 4 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 08889 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R009 — USPS business mailboxes 75, 591 homes
- Route R008 — USPS business mailboxes 60, 617 homes
- Route R007 — USPS business mailboxes 21, 661 homes
- Route R002 — USPS business mailboxes 5, 485 homes
- Route R005 — USPS business mailboxes 3, 587 homes
Select these 5 routes on the route map
Every carrier route in 08889
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R002 | Rural | 485 | 5 | $163,325 | — | — | — |
| R003 | Rural | 454 | 0 | $200,001+ | — | — | — |
| R004 | Rural | 484 | 1 | $200,001+ | — | — | — |
| R005 | Rural | 587 | 3 | $121,030 | — | — | — |
| R006 | Rural | 430 | 3 | $156,680 | — | — | — |
| R007 | Rural | 661 | 21 | $121,030 | — | — | — |
| R008 | Rural | 617 | 60 | $132,446 | — | — | — |
| R009 | Rural | 591 | 75 | $132,446 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 08889 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
- 08876 — Somerville borough, NJ (3.9 mi)
- 08833 — Lebanon borough, NJ (4.1 mi)
- 07921 — Lamington CDP, NJ (5.1 mi)
- 08858 — Oldwick CDP, NJ (5.2 mi)
- 08853 — Neshanic Station CDP, NJ (5.7 mi)
- 08869 — Raritan borough, NJ (6.2 mi)
- 08887 — Three Bridges CDP, NJ (6.4 mi)
- 08821 — Flagtown CDP, NJ (7 mi)
Areas that include 08889
- White House Station, NJ ZIP codes — 2 ZIP codes
- Oldwick, NJ ZIP codes — 2 ZIP codes
- Whitehouse Station, NJ ZIP codes — 1 ZIP code
- Hunterdon County ZIP codes — 24 ZIP codes
- New Jersey ZIP code data
Where it ranks
- No. 6 of 22: highest share of owner-occupied homes in Hunterdon County
- No. 3 of 22: highest median age in Hunterdon County
Mail every home in 08889
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) 08889, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 08889 in?
- 08889 is a Whitehouse Station, NJ mailing address. By land area, 9% lies inside White House Station and 3% lies inside Oldwick; the rest is outside any Census-defined city or community.
- What county is 08889 in?
- 08889 is in Hunterdon County.
- What is the population of 08889?
- About 10,193 people (±627), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 9,928.
- What is the median household income in 08889?
- $157,781 (±$15,192), 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 08889?
- 8 USPS carrier routes with 4,309 residential and 168 business mailboxes (4,484 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 08889?
- The closest, measured center to center: 08876 (3.9 mi, Somerville borough, NJ), 08833 (4.1 mi, Lebanon borough, NJ), 07921 (5.1 mi, Lamington), 08858 (5.2 mi, Oldwick), 08853 (5.7 mi, Neshanic Station) and 08869 (6.2 mi, Raritan borough, NJ).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.