08857 ZIP Code, Old Bridge, NJ

08857 is a ZIP code in Old Bridge, New Jersey in Middlesex County. It covers 24 square miles of land. The closest ZIP codes are 08884, 07747 and 07751. 40,891 people live here in 15,740 households, more than in 9 of every 10 New Jersey ZIP codes. At about 1,700 people per square mile it has suburban density, and owners and renters are mixed (67% own). Median household income is $109,312, close to the New Jersey median of $103,556.

Quick facts

Key figures

MeasureValue
Residents40,891
Households15,740
Median household income$109,312
Income per person$55,249
Median age42.3
Homeowners67.1%
Median home value$486,600
Median rent$1,504
Bachelor's degree or higher38.8%
Average commute (minutes)35.9
Households with kids under 1826.2%
Moved in the past year6.2%
Below the poverty line7.0%
Broadband internet95.5%
Speak a non-English language at home29.6%

Household income

% of householdsValue
<$10K3.0%
$10–15K1.4%
$15–25K3.1%
$25–35K3.6%
$35–50K6.6%
$50–75K16.0%
$75–100K10.9%
$100–150K19.8%
$150–200K13.3%
$200K+22.2%

Age

% of all residentsValue
<108.5%
10–1911.8%
20–245.1%
25–3415.9%
35–4412.2%
45–5412.0%
55–6416.6%
65–7410.4%
75+7.7%

Tenure

% of housing unitsValue
Owned, with mortgage44.9%
Owned outright21.0%
Rented30.8%
Vacant3.3%

Type of building

% of housing unitsValue
Detached house57.2%
Townhome10.8%
2–4 units11.3%
5–19 units11.4%
20+ units9.3%
Mobile / other0.1%

Businesses in 08857

854 business establishments with 10,542 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

08857 has 32 USPS carrier routes with 12,965 residential and 734 business mailboxes. Open the EDDM route map.

Carrier routes in 08857

08857 has 32 USPS carrier routes (26 city (C), 6 rural (R)) with 12,965 residential and 734 business mailboxes. Routes range from 146 homes (C009) to 770 homes (R102); the median route has 348 homes. The Census counted 15,740 households in 08857 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2495
250–49918
500–7498
750–9991
1,000–1,4990
1,500+0

Best routes in 08857 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route R101 — USPS business mailboxes 128, 554 homes
  2. Route R103 — USPS business mailboxes 110, 661 homes
  3. Route C029 — USPS business mailboxes 77, 242 homes
  4. Route C027 — USPS business mailboxes 53, 578 homes
  5. Route R102 — USPS business mailboxes 52, 770 homes

Select these 5 routes on the route map

Every carrier route in 08857

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City34925$112,862———
C002City49823$100,406———
C003City3665$132,332———
C004City3460$102,478———
C005City2940$81,335———
C006City30520$119,462———
C007City43543$87,031———
C008City21230$137,424———
C009City14638$106,017———
C010City2234$143,131———
C012City2771$159,153———
C013City28533$132,332———
C014City4537$112,881———
C015City26617$86,783———
C016City4211$60,320———
C017City2980$143,131———
C018City5871$81,816———
C020City6023$78,914———
C021City2531$73,053———
C023City2822$102,478———
C024City33544$112,881———
C025City3361$200,001+———
C026City2282$159,153———
C027City57853$105,852———
C028City3825$143,131———
C029City24277$159,153———
R101Rural554128$112,881———
R102Rural77052$176,328———
R103Rural661110$176,328———
R104Rural5794$184,341———
R105Rural6803$184,341———
R106Rural7221$176,328———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 08857 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

Areas that include 08857

Where it ranks

Mail every home in 08857

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) 08857, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 08857 in?
08857 is a Old Bridge, NJ mailing address. By land area, 33% lies inside Old Bridge, 4% lies inside Brownville and 1% lies inside Madison Park; the rest is outside any Census-defined city or community.
What county is 08857 in?
08857 is in Middlesex County.
What is the population of 08857?
About 40,891 people (±1,502), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 40,675.
What is the median household income in 08857?
$109,312 (±$8,716), 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 08857?
32 USPS carrier routes with 12,965 residential and 734 business mailboxes (13,627 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 08857?
The closest, measured center to center: 08884 (3.3 mi, Spotswood borough, NJ), 07747 (4.1 mi, Matawan borough, NJ), 07751 (4.3 mi, Morganville), 08882 (4.4 mi, South River borough, NJ), 08872 (4.5 mi, Sayreville borough, NJ) and 08859 (4.7 mi, Sayreville borough, NJ).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.