Which ZIP code in Boston has the lowest median age?

02215 (Boston), at 21.6 (±0.3), among 30 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 Boston, MA

These are the 25 ZIP codes in Boston, MA with the lowest median age, out of 30 with at least 1,000 residents. 02215 (Boston, 21.6), 02115 (Boston, 21.7) and 02163 (Boston, 22.8) lead the list. There is no single "best" ZIP code in Boston; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Youngest ZIP codes in Boston

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	02215	Boston	21.6 ±0.3	24,581	8,016	11,648
2	02115	Boston	21.7 ±0.4	29,705	9,873	11,352
3	02163	Boston	22.8 ±2.6	1,817	410	700
4	02120	Roxbury Crossing	23.6 ±1.0	15,283	4,625	5,719
5	02467	Chestnut Hill	26.5 ±2.9	23,001	6,852	7,378
6	02134	Allston	28.5 ±0.7	17,667	8,217	11,164
7	02113	Boston	29.4 ±1.2	6,385	4,112	4,467
8	02135	Brighton	30.4 ±0.6	43,149	21,143	23,973
9	02127	South Boston	32.3 ±0.8	36,769	18,066	18,777
10	02114	Boston	33.3 ±1.8	14,418	8,396	10,282
11	02109	Boston	33.5 ±2.9	3,612	2,085	2,420
12	02111	Boston	33.9 ±3.1	8,407	3,711	4,994
13	02121	Dorchester	34.3 ±1.9	29,040	10,760	9,489
14	02125	Dorchester	34.4 ±1.1	33,662	14,246	13,683
15	02128	East Boston	34.5 ±0.9	43,345	17,736	18,362
16	02116	Boston	34.5 ±1.2	21,978	11,513	12,745
17	02130	Jamaica Plain	35.3 ±0.8	40,055	18,237	17,056
18	02129	Charlestown	35.6 ±1.5	20,032	9,606	8,934
19	02210	Boston	35.7 ±2.0	6,971	4,588	5,821
20	02119	Roxbury	36.3 ±1.7	27,377	11,920	11,555
21	02124	Dorchester Center	36.9 ±1.0	56,216	20,287	18,146
22	02118	Boston	36.9 ±1.7	28,946	14,497	15,092
23	02108	Boston	36.9 ±5.5	3,794	1,973	2,199
24	02136	Hyde Park	37.8 ±1.4	37,265	13,719	12,643
25	02122	Dorchester	37.8 ±2.1	23,479	9,299	9,229

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; 30 of 33 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 29,776 households, on 59 carrier routes with 36,797 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 02215 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 Boston has the lowest median age?: 02215 (Boston), at 21.6 (±0.3), among 30 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.