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

19034 (Fort Washington), at 28.0%, among 52 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 Montgomery County, PA

These are the 25 ZIP codes in Montgomery County with the fastest population growth, out of 52 with at least 1,000 residents. 19034 (Fort Washington, 28.0%), 19085 (Villanova, 27.9%) and 19025 (Dresher, 26.7%) lead the list. There is no single "best" ZIP code in Montgomery 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 Montgomery County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	19034	Fort Washington	28.0%	7,488	2,639	2,702
2	19085	Villanova	27.9%	11,230	1,723	2,070
3	19025	Dresher	26.7%	7,423	2,789	2,781
4	19406	King Of Prussia	20.9%	30,362	13,422	14,358
5	19428	Conshohocken	18.5%	20,411	9,347	10,650
6	19004	Bala Cynwyd	17.9%	11,230	4,387	5,397
7	19035	Gladwyne	14.0%	3,937	1,308	1,654
8	19095	Wyncote	13.6%	8,030	3,520	3,369
9	19096	Wynnewood	11.3%	15,249	5,885	5,882
10	19046	Jenkintown	11.2%	19,640	7,929	8,756
11	18041	East Greenville	9.8%	5,768	2,373	2,219
12	18073	Pennsburg	9.4%	11,755	4,214	4,127
13	19012	Cheltenham	9.2%	6,910	2,191	2,498
14	19446	Lansdale	9.0%	61,848	24,178	23,660
15	19468	Royersford	8.4%	28,194	11,206	12,157
16	19422	Blue Bell	8.3%	20,412	7,981	8,399
17	19460	Phoenixville	8.0%	45,423	18,612	19,458
18	19006	Huntingdon Valley	7.1%	23,443	8,531	9,075
19	19090	Willow Grove	7.1%	19,662	7,547	8,230
20	19525	Gilbertsville	6.8%	17,725	6,092	6,077
21	19504	Barto	6.8%	5,335	2,125	2,040
22	19426	Collegeville	6.7%	43,460	13,968	14,504
23	19031	Flourtown	6.7%	4,929	2,044	2,032
24	19044	Horsham	6.6%	17,279	7,009	7,235
25	19003	Ardmore	6.2%	14,255	5,923	6,058

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; 52 of 65 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 29,920 households, on 65 carrier routes with 32,561 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 19034 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 Montgomery County has the fastest population growth?: 19034 (Fort Washington), at 28.0%, among 52 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.