Which ZIP code in Garrett County has the fastest population growth?

21531 (Friendsville), at 33.1%, among 10 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 Garrett County, MD

These are the 10 ZIP codes in Garrett County with the fastest population growth, out of 10 with at least 1,000 residents. 21531 (Friendsville, 33.1%), 21521 (Barton, 27.0%) and 21561 (Swanton, -2.1%) lead the list. There is no single "best" ZIP code in Garrett 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 Garrett County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	21531	Friendsville	33.1%	2,487	1,101	882
2	21521	Barton	27.0%	1,400	568	311
3	21561	Swanton	-2.1%	2,412	1,107	1,616
4	21550	Oakland	-2.7%	13,691	6,100	6,914
5	21541	Mc Henry	-6.1%	1,335	562	819
6	21536	Grantsville	-7.0%	3,833	1,654	1,489
7	21532	Frostburg	-7.3%	13,647	5,511	6,349
8	21520	Accident	-12.8%	1,918	787	851
9	21562	Westernport	-13.8%	3,032	1,256	1,189
10	21539	Lonaconing	-24.2%	1,975	885	1,095

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; 10 of 12 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 9,438 households, on 25 carrier routes with 10,542 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 21531 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 Garrett County has the fastest population growth?: 21531 (Friendsville), at 33.1%, among 10 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.