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

48109 (Ann Arbor), at 85.1%, among 21 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 Washtenaw County, MI

These are the 21 ZIP codes in Washtenaw County with the highest share of residents who moved in during the past year, out of 21 with at least 1,000 residents. 48109 (Ann Arbor, 85.1%), 48104 (Ann Arbor, 46.2%) and 48105 (Ann Arbor, 26.3%) lead the list. There is no single "best" ZIP code in Washtenaw 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 Washtenaw County

Rank	ZIP	Mailing city	Moved in the past year	Residents	Households	Residential mailboxes
1	48109	Ann Arbor	85.1%	5,939	156	—
2	48104	Ann Arbor	46.2%	43,979	17,526	19,118
3	48105	Ann Arbor	26.3%	37,048	15,689	—
4	48108	Ann Arbor	19.6%	27,666	12,347	12,601
5	48197	Ypsilanti	18.5%	66,525	27,559	—
6	48103	Ann Arbor	17.6%	55,054	24,258	—
7	48198	Ypsilanti	14.5%	39,244	16,471	17,831
8	48160	Milan	12.4%	13,972	4,947	5,126
9	48191	Willis	11.6%	4,403	1,662	—
10	48167	Northville	10.8%	24,713	10,593	—
11	48118	Chelsea	10.6%	13,246	5,733	5,998
12	48130	Dexter	9.7%	16,986	6,268	6,438
13	48178	South Lyon	9.2%	37,789	13,953	15,616
14	48170	Plymouth	9.1%	40,076	17,308	18,522
15	48189	Whitmore Lake	8.8%	13,893	5,833	—
16	48168	Northville	8.0%	25,038	9,058	9,473
17	48176	Saline	7.1%	23,451	8,910	9,514
18	49236	Clinton	7.1%	5,026	1,928	1,933
19	48158	Manchester	7.0%	7,770	3,149	3,021
20	49240	Grass Lake	5.8%	8,863	3,629	3,760
21	48137	Gregory	3.8%	4,157	1,857	—

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; 21 of 22 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 73,277 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 48109 on the EDDM route map

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Frequently asked questions

Which ZIP code in Washtenaw County has the highest share of residents who moved in during the past year?: 48109 (Ann Arbor), at 85.1%, among 21 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.