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

02655 (Osterville), at 25.4%, among 33 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 Barnstable County, MA

These are the 25 ZIP codes in Barnstable County with the fastest population growth, out of 33 with at least 1,000 residents. 02655 (Osterville, 25.4%), 02657 (Provincetown, 24.6%) and 02645 (Harwich, 23.8%) lead the list. There is no single "best" ZIP code in Barnstable 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 Barnstable County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	02655	Osterville	25.4%	4,024	1,788	2,593
2	02657	Provincetown	24.6%	3,703	2,067	3,293
3	02645	Harwich	23.8%	11,288	5,169	5,598
4	02630	Barnstable	21.2%	2,371	876	601
5	02648	Marstons Mills	19.5%	7,968	3,091	3,046
6	02642	Eastham	19.2%	5,811	3,041	3,029
7	02639	Dennis Port	19.1%	3,808	1,917	1,993
8	02635	Cotuit	19.1%	3,577	1,707	1,534
9	02556	North Falmouth	14.8%	2,868	1,196	1,610
10	02632	Centerville	14.5%	11,685	4,814	5,581
11	02664	South Yarmouth	14.4%	9,949	4,774	6,168
12	02667	Wellfleet	12.7%	3,961	1,847	1,508
13	02659	South Chatham	11.4%	1,137	587	707
14	02675	Yarmouth Port	10.9%	7,297	3,398	3,675
15	02633	Chatham	10.9%	4,512	2,259	3,056
16	02653	Orleans	10.0%	6,443	3,158	3,182
17	02562	Sagamore Beach	10.0%	3,402	1,384	1,174
18	02536	East Falmouth	8.7%	21,328	9,100	9,786
19	02649	Mashpee	8.7%	15,384	7,135	9,044
20	02668	West Barnstable	6.0%	2,820	1,070	1,272
21	02563	Sandwich	5.8%	10,436	4,442	4,408
22	02638	Dennis	4.1%	3,253	1,440	1,874
23	02631	Brewster	3.4%	10,061	4,549	5,995
24	02660	South Dennis	3.0%	6,381	3,032	3,469
25	02601	Hyannis	2.5%	16,071	7,562	8,351

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; 33 of 48 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 12,991 households, on 26 carrier routes with 15,131 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 02655 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 Barnstable County has the fastest population growth?: 02655 (Osterville), at 25.4%, among 33 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.