What city is 08318 in?

08318 is a Elmer, NJ mailing address. By land area, 3% lies inside Olivet and 1% lies inside Elmer; the rest is outside any Census-defined city or community.

What is the population of 08318?

About 11,961 people (±415), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 11,896.

What is the median household income in 08318?

$92,558 (±$13,450), 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 08318?

9 USPS carrier routes with 4,681 residential and 157 business mailboxes (4,837 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 08318?

The closest, measured center to center: 08343 (5.5 mi), 08352 (6.3 mi, Rosenhayn), 08328 (6.6 mi, Malaga), 08322 (7.8 mi, Franklinville), 08312 (8.7 mi, Clayton borough, NJ) and 08001 (9 mi, Alloway).

08318 ZIP Code, Elmer, NJ

Q: What county is 08318 in?

08318 is mostly in Salem County (95% of its land), with smaller parts in Cumberland County.

08318 is a ZIP code in Elmer, New Jersey — mostly in Salem County (95% of its land), with smaller parts in Cumberland County. It covers 80 square miles of land. The closest ZIP codes are 08343, 08352 and 08328. 11,961 people live here in 4,264 households. With about 149 people per square mile it is lightly settled, and most homes are owner-occupied (84%). Median household income is $92,558, below the New Jersey median of $103,556.

Quick facts

Mailing city: Elmer, NJ
County: Salem County
Land area: 80 sq mi
Population: 11,961
Median household income: $92,558
Carrier routes: 9 (4,681 homes)

Key figures

Measure	Value
Residents	11,961
Households	4,264
Median household income	$92,558
Income per person	$42,911
Median age	44.3
Homeowners	84.2%
Median home value	$302,000
Median rent	$1,349
Bachelor's degree or higher	26.1%
Average commute (minutes)	27.8
Households with kids under 18	27.3%
Moved in the past year	6.2%
Below the poverty line	8.7%
Broadband internet	91.8%
Speak a non-English language at home	6.2%

Household income

% of households	Value
<$10K	2.5%
$10–15K	1.2%
$15–25K	6.2%
$25–35K	8.0%
$35–50K	7.6%
$50–75K	13.1%
$75–100K	14.2%
$100–150K	21.2%
$150–200K	11.2%
$200K+	15.0%

Age

% of all residents	Value
<10	10.9%
10–19	9.2%
20–24	7.6%
25–34	11.0%
35–44	12.2%
45–54	11.2%
55–64	17.7%
65–74	13.5%
75+	6.8%

Tenure

% of housing units	Value
Owned, with mortgage	40.9%
Owned outright	37.0%
Rented	14.3%
Vacant	7.7%

Type of building

% of housing units	Value
Detached house	88.8%
Townhome	1.8%
2–4 units	1.0%
5–19 units	0.3%
20+ units	0.0%
Mobile / other	8.1%

Businesses in 08318

227 business establishments with 2,689 employees (ZIP Codes Business Patterns 2023).

Construction: 41
Health Care and Social Assistance: 30
Other Services (except Public Administration): 27
Retail Trade: 26
Administrative and Support and Waste Management and Remediation Services: 15
Accommodation and Food Services: 15
Professional, Scientific, and Technical Services: 12
Wholesale Trade: 11

EDDM carrier routes

08318 has 9 USPS carrier routes with 4,681 residential and 157 business mailboxes. Open the EDDM route map.

Carrier routes in 08318

08318 has 9 USPS carrier routes (9 rural (R)) with 4,681 residential and 157 business mailboxes. Routes range from 375 homes (R002) to 634 homes (R011); the median route has 524 homes. The Census counted 4,264 households in 08318 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	2
500–749	7
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 08318 for…

Most businesses

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

Route R011 — USPS business mailboxes 44, 634 homes
Route R006 — USPS business mailboxes 28, 524 homes
Route R008 — USPS business mailboxes 22, 581 homes
Route R003 — USPS business mailboxes 21, 484 homes
Route R002 — USPS business mailboxes 14, 375 homes

Select these 5 routes on the route map

Every carrier route in 08318

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R001	Rural	505	6	$79,143	—	—	—
R002	Rural	375	14	$62,581	—	—	—
R003	Rural	484	21	$132,721	—	—	—
R004	Rural	527	6	$108,125	—	—	—
R006	Rural	524	28	$108,125	—	—	—
R007	Rural	541	11	$108,125	—	—	—
R008	Rural	581	22	$62,570	—	—	—
R009	Rural	510	5	$84,803	—	—	—
R011	Rural	634	44	$81,215	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 08318 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

08343 (5.5 mi)
08352 — Rosenhayn CDP, NJ (6.3 mi)
08328 — Malaga CDP, NJ (6.6 mi)
08322 — Franklinville CDP, NJ (7.8 mi)
08312 — Clayton borough, NJ (8.7 mi)
08001 — Alloway CDP, NJ (9 mi)
08353 — Shiloh borough, NJ (9 mi)
08302 — Bridgeton city, NJ (9.3 mi)

Areas that include 08318

Olivet, NJ ZIP codes — 1 ZIP code
Elmer, NJ ZIP codes — 1 ZIP code
Deerfield Street, NJ ZIP codes — 2 ZIP codes
Salem County ZIP codes — 11 ZIP codes
New Jersey ZIP code data

Where it ranks

Mail every home in 08318

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) 08318, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 08318 in?: 08318 is a Elmer, NJ mailing address. By land area, 3% lies inside Olivet and 1% lies inside Elmer; the rest is outside any Census-defined city or community.
What county is 08318 in?: 08318 is mostly in Salem County (95% of its land), with smaller parts in Cumberland County.
What is the population of 08318?: About 11,961 people (±415), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 11,896.
What is the median household income in 08318?: $92,558 (±$13,450), 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 08318?: 9 USPS carrier routes with 4,681 residential and 157 business mailboxes (4,837 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 08318?: The closest, measured center to center: 08343 (5.5 mi), 08352 (6.3 mi, Rosenhayn), 08328 (6.6 mi, Malaga), 08322 (7.8 mi, Franklinville), 08312 (8.7 mi, Clayton borough, NJ) and 08001 (9 mi, Alloway).

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