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

17101 (Harrisburg), at 40.6%, among 24 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 Dauphin County, PA

These are the 24 ZIP codes in Dauphin County with the fastest population growth, out of 24 with at least 1,000 residents. 17101 (Harrisburg, 40.6%), 17034 (Highspire, 23.2%) and 17098 (Williamstown, 15.6%) lead the list. There is no single "best" ZIP code in Dauphin 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 Dauphin County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	17101	Harrisburg	40.6%	2,722	1,914	2,106
2	17034	Highspire	23.2%	3,071	1,459	1,309
3	17098	Williamstown	15.6%	2,618	1,130	1,079
4	17109	Harrisburg	12.8%	27,466	10,960	10,584
5	17111	Harrisburg	12.6%	36,744	14,538	—
6	17110	Harrisburg	10.6%	27,364	11,741	13,075
7	17078	Palmyra	10.1%	23,840	9,603	9,890
8	17980	Tower City	10.0%	3,342	1,282	1,389
9	17102	Harrisburg	9.2%	8,118	4,657	4,360
10	17113	Harrisburg	8.0%	11,724	4,631	—
11	17112	Harrisburg	7.5%	38,502	15,960	16,081
12	17103	Harrisburg	6.5%	13,115	4,999	5,051
13	17036	Hummelstown	5.0%	23,520	9,862	10,238
14	17022	Elizabethtown	3.4%	31,908	12,477	13,054
15	17057	Middletown	2.3%	23,560	10,216	9,676
16	17023	Elizabethville	-0.3%	3,489	1,348	1,061
17	17028	Grantville	-3.8%	3,563	1,456	1,388
18	17061	Millersburg	-4.8%	6,842	2,981	2,917
19	17017	Dalmatia	-5.0%	1,509	683	749
20	17032	Halifax	-7.0%	7,551	3,228	3,066
21	17033	Hershey	-7.2%	16,481	6,469	7,291
22	17018	Dauphin	-7.9%	3,902	1,877	1,753
23	17104	Harrisburg	-8.2%	18,541	7,522	7,681
24	17048	Lykens	-8.3%	3,870	1,554	1,746

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; 24 of 30 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 30,001 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 17101 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 Dauphin County has the fastest population growth?: 17101 (Harrisburg), at 40.6%, among 24 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.