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

19043 (Holmes), at 34.3%, among 38 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 Delaware County, PA

These are the 25 ZIP codes in Delaware County with the fastest population growth, out of 38 with at least 1,000 residents. 19043 (Holmes, 34.3%), 19085 (Villanova, 27.9%) and 19022 (Crum Lynne, 21.3%) lead the list. There is no single "best" ZIP code in Delaware 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 Delaware County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	19043	Holmes	34.3%	3,317	1,276	1,140
2	19085	Villanova	27.9%	11,230	1,723	2,070
3	19022	Crum Lynne	21.3%	4,482	1,815	1,544
4	19073	Newtown Square	10.9%	21,915	8,676	8,975
5	19342	Glen Mills	10.2%	20,770	7,772	8,681
6	19086	Wallingford	10.1%	12,930	4,474	4,527
7	19317	Chadds Ford	9.0%	10,864	4,044	4,136
8	19026	Drexel Hill	7.0%	32,725	12,841	13,106
9	19063	Media	6.7%	38,172	14,906	16,774
10	19003	Ardmore	6.2%	14,255	5,923	6,058
11	19036	Glenolden	6.0%	13,668	5,204	5,523
12	19050	Lansdowne	5.0%	29,373	12,635	11,910
13	19083	Havertown	2.6%	37,590	13,650	13,558
14	19064	Springfield	2.5%	25,277	8,674	8,955
15	19014	Aston	2.5%	21,427	8,027	8,204
16	19087	Wayne	2.3%	33,528	11,949	13,057
17	19032	Folcroft	2.2%	6,772	2,566	2,516
18	19060	Garnet Valley	1.8%	11,524	3,884	4,073
19	19081	Swarthmore	1.7%	10,089	3,415	3,655
20	19010	Bryn Mawr	1.2%	21,827	7,751	8,281
21	19078	Ridley Park	1.0%	11,683	4,725	4,912
22	19023	Darby	0.7%	22,247	8,604	8,012
23	19074	Norwood	0.7%	5,934	2,203	2,337
24	19018	Clifton Heights	0.3%	23,505	9,723	10,288
25	19153	Philadelphia	0.1%	13,018	5,896	5,388

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; 38 of 42 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 21,262 households, on 47 carrier routes with 22,410 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 19043 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 Delaware County has the fastest population growth?: 19043 (Holmes), at 34.3%, among 38 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.