Which ZIP code in Middlesex County has the lowest median age?

08901 (New Brunswick), at 24.4 (±0.9), among 40 ZIP codes with at least 1,000 residents.

Why are some ZIP codes missing?

ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

Youngest ZIP codes in Middlesex County, NJ

These are the 25 ZIP codes in Middlesex County with the lowest median age, out of 40 with at least 1,000 residents. 08901 (New Brunswick, 24.4), 07721 (Cliffwood, 30.9) and 08854 (Piscataway, 33.4) lead the list. There is no single "best" ZIP code in Middlesex County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Youngest ZIP codes in Middlesex County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	08901	New Brunswick	24.4 ±0.9	57,263	15,676	16,939
2	07721	Cliffwood	30.9 ±2.1	4,277	1,603	1,700
3	08854	Piscataway	33.4 ±1.2	61,088	17,600	19,286
4	08904	Highland Park	35.2 ±2.2	15,121	6,436	6,747
5	08536	Plainsboro	36.1 ±1.3	20,817	8,353	9,032
6	08882	South River	37.0 ±2.8	16,124	5,574	5,648
7	08837	Edison	37.3 ±1.3	19,437	7,597	7,009
8	08902	North Brunswick	37.7 ±0.9	43,932	15,398	15,791
9	07008	Carteret	38.1 ±2.9	25,526	8,230	8,976
10	08861	Perth Amboy	38.3 ±1.0	59,351	20,596	17,126
11	08817	Edison	38.5 ±0.8	49,020	17,411	—
12	08830	Iselin	38.5 ±2.3	19,551	6,512	7,014
13	07095	Woodbridge	38.6 ±2.0	20,756	7,921	9,063
14	08852	Monmouth Junction	39.0 ±2.3	18,062	6,694	7,402
15	08859	Parlin	39.1 ±2.0	25,448	9,123	9,261
16	08840	Metuchen	39.2 ±1.2	18,206	6,378	6,986
17	08828	Helmetta	39.2 ±3.9	2,459	1,074	1,082
18	08872	Sayreville	39.3 ±2.3	20,204	7,449	7,999
19	07001	Avenel	39.6 ±1.8	17,121	5,615	5,760
20	08863	Fords	39.9 ±3.5	12,771	4,744	4,736
21	08540	Princeton	40.6 ±1.0	50,388	18,609	20,795
22	08879	South Amboy	41.0 ±2.4	23,556	9,344	9,645
23	07064	Port Reading	41.2 ±5.1	3,481	1,101	1,449
24	08816	East Brunswick	41.3 ±1.1	49,360	16,715	17,984
25	07747	Matawan	41.3 ±2.0	32,330	13,097	13,070

How we ranked them

Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 40 of 40 qualify.

Which of these to mail, and why

Younger ZIP codes skew toward renters, students and young families: fitness, quick-service food, apartments, entertainment and first-time-buyer offers.

The top five ZIP codes on this list hold 49,668 households, on 92 carrier routes with 53,704 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 08901 on the EDDM route map

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Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Middlesex County has the lowest median age?: 08901 (New Brunswick), at 24.4 (±0.9), among 40 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024).
Why are some ZIP codes missing?: ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

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