Which ZIP code in Baltimore city County has the fastest population growth?

21226 (Curtis Bay), at 6.8%, 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.

Fastest-growing ZIP codes in Baltimore city, MD

These are the 23 ZIP codes in Baltimore city with the fastest population growth, out of 23 with at least 1,000 residents. 21226 (Curtis Bay, 6.8%), 21209 (Baltimore, 6.4%) and 21201 (Baltimore, 6.1%) 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.

Fastest-growing ZIP codes in Baltimore city County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	21226	Curtis Bay	6.8%	6,674	2,688	2,787
2	21209	Baltimore	6.4%	30,126	11,621	12,261
3	21201	Baltimore	6.1%	18,307	11,345	13,314
4	21229	Baltimore	1.7%	46,679	19,262	—
5	21212	Baltimore	1.6%	33,974	12,971	13,109
6	21225	Brooklyn	-0.9%	34,062	12,915	13,017
7	21214	Baltimore	-1.4%	21,092	8,466	7,940
8	21216	Baltimore	-2.5%	29,426	12,307	11,296
9	21207	Gwynn Oak	-3.6%	47,099	18,976	19,296
10	21224	Baltimore	-3.8%	47,465	20,962	24,354
11	21230	Baltimore	-3.8%	32,977	16,496	19,897
12	21202	Baltimore	-5.1%	20,683	10,861	12,822
13	21231	Baltimore	-5.6%	14,969	8,136	—
14	21206	Baltimore	-6.0%	48,902	20,480	20,390
15	21218	Baltimore	-7.4%	44,014	18,703	20,956
16	21217	Baltimore	-8.5%	30,792	15,332	13,889
17	21211	Baltimore	-8.6%	14,969	8,192	9,263
18	21210	Baltimore	-9.1%	14,134	5,202	5,945
19	21213	Baltimore	-9.5%	28,058	12,009	11,569
20	21239	Baltimore	-10.1%	27,346	12,080	12,698
21	21215	Baltimore	-10.4%	52,229	21,740	23,554
22	21223	Baltimore	-12.6%	19,572	8,587	8,978
23	21205	Baltimore	-19.9%	13,013	5,111	6,144

How we ranked them

Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have at least 1,000 residents. ZIP codes need at least 1,000 residents to be ranked; 23 of 26 qualify.

Which of these to mail, and why

Growing ZIP codes add households every year, which means new homes, new routes and customers without a go-to provider yet. Check the route map: new subdivisions can appear as new carrier routes.

The top five ZIP codes on this list hold 57,887 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 21226 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

Map it and price it

EDDM guides

Frequently asked questions

Which ZIP code in Baltimore city County has the fastest population growth?: 21226 (Curtis Bay), at 6.8%, among 23 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have 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.

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