Which ZIP code in Baltimore city County has the highest median age?

21215 (Baltimore), at 41.2 (±2.0), among 23 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.

Oldest ZIP codes in Baltimore city, MD

These are the 23 ZIP codes in Baltimore city with the highest median age, out of 23 with at least 1,000 residents. 21215 (Baltimore, 41.2), 21214 (Baltimore, 40.8) and 21207 (Gwynn Oak, 39.5) lead the list. There is no single "best" ZIP code in Baltimore city County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Oldest ZIP codes in Baltimore city County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	21215	Baltimore	41.2 ±2.0	52,229	21,740	23,554
2	21214	Baltimore	40.8 ±2.0	21,092	8,466	7,940
3	21207	Gwynn Oak	39.5 ±1.6	47,099	18,976	19,296
4	21217	Baltimore	38.8 ±2.3	30,792	15,332	13,889
5	21223	Baltimore	38.6 ±2.1	19,572	8,587	8,978
6	21212	Baltimore	38.5 ±1.3	33,974	12,971	13,109
7	21213	Baltimore	38.3 ±2.3	28,058	12,009	11,569
8	21229	Baltimore	37.5 ±1.1	46,679	19,262	—
9	21211	Baltimore	37.5 ±1.6	14,969	8,192	9,263
10	21239	Baltimore	37.1 ±3.5	27,346	12,080	12,698
11	21206	Baltimore	36.7 ±1.5	48,902	20,480	20,390
12	21205	Baltimore	35.9 ±3.2	13,013	5,111	6,144
13	21209	Baltimore	35.6 ±2.1	30,126	11,621	12,261
14	21218	Baltimore	35.0 ±1.3	44,014	18,703	20,956
15	21216	Baltimore	34.7 ±2.7	29,426	12,307	11,296
16	21224	Baltimore	34.3 ±1.0	47,465	20,962	24,354
17	21225	Brooklyn	34.2 ±2.1	34,062	12,915	13,017
18	21230	Baltimore	33.9 ±1.0	32,977	16,496	19,897
19	21202	Baltimore	33.7 ±1.9	20,683	10,861	12,822
20	21201	Baltimore	33.6 ±2.1	18,307	11,345	13,314
21	21226	Curtis Bay	33.6 ±3.3	6,674	2,688	2,787
22	21231	Baltimore	32.7 ±1.3	14,969	8,136	—
23	21210	Baltimore	32.0 ±3.1	14,134	5,202	5,945

How we ranked them

Ranked by median age of all residents, highest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 23 of 26 qualify.

Which of these to mail, and why

Older ZIP codes respond to health care, hearing and vision, Medicare plans, home safety, estate planning and services that come to the door.

The top five ZIP codes on this list hold 73,101 households, on 116 carrier routes with 73,657 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 21215 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Baltimore city County has the highest median age?: 21215 (Baltimore), at 41.2 (±2.0), among 23 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median age of all residents, highest 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.