Which ZIP code in Northampton County has the highest share of residents who moved in during the past year?

18015 (Bethlehem), at 16.9%, among 19 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.

ZIP codes with the most new movers in Northampton County, PA

These are the 19 ZIP codes in Northampton County with the highest share of residents who moved in during the past year, out of 19 with at least 1,000 residents. 18015 (Bethlehem, 16.9%), 18018 (Bethlehem, 14.1%) and 18042 (Easton, 13.3%) lead the list. There is no single "best" ZIP code in Northampton County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

ZIP codes with the most new movers in Northampton County

Rank	ZIP	Mailing city	Moved in the past year	Residents	Households	Residential mailboxes
1	18015	Bethlehem	16.9%	34,852	12,150	12,996
2	18018	Bethlehem	14.1%	32,965	14,119	15,396
3	18042	Easton	13.3%	45,532	16,376	17,723
4	18017	Bethlehem	11.4%	40,640	16,597	16,654
5	18045	Easton	11.1%	30,429	12,115	13,139
6	18091	Wind Gap	10.6%	6,547	2,673	—
7	18064	Nazareth	9.4%	26,970	10,477	10,536
8	18040	Easton	8.8%	17,256	6,668	7,229
9	18085	Tatamy	8.8%	1,175	387	—
10	18072	Pen Argyl	8.7%	6,938	2,729	2,785
11	18032	Catasauqua	7.9%	9,555	4,083	4,152
12	18088	Walnutport	7.9%	8,488	3,296	3,763
13	18067	Northampton	7.6%	19,590	7,902	8,770
14	18020	Bethlehem	7.1%	21,204	7,791	8,347
15	18013	Bangor	6.1%	17,597	6,755	7,591
16	18055	Hellertown	5.8%	12,117	4,703	5,317
17	18014	Bath	5.4%	12,097	4,617	5,275
18	18038	Danielsville	3.4%	3,549	1,395	1,201
19	18343	Mount Bethel	2.5%	3,637	1,561	1,708

How we ranked them

Ranked by the share of residents (age 1 and over) who lived in a different home a year earlier (ACS Data Profile, 2020–2024). No margin of error is published for this share in our files. ZIP codes need at least 1,000 residents to be ranked; 19 of 24 qualify.

Which of these to mail, and why

New residents are still choosing a dentist, a gym, a pizza place and a lawn service. ZIP codes with high turnover give a welcome offer more people to work on each year.

The top five ZIP codes on this list hold 71,357 households, on 136 carrier routes with 75,908 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 18015 on the EDDM route map

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Frequently asked questions

Which ZIP code in Northampton County has the highest share of residents who moved in during the past year?: 18015 (Bethlehem), at 16.9%, among 19 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the share of residents (age 1 and over) who lived in a different home a year earlier (ACS Data Profile, 2020–2024). No margin of error is published for this share in our files.
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.