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

48167 (Northville), at 10.4%, 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.

Fastest-growing ZIP codes in Washtenaw County, MI

These are the 21 ZIP codes in Washtenaw County with the fastest population growth, out of 21 with at least 1,000 residents. 48167 (Northville, 10.4%), 48168 (Northville, 9.6%) and 48109 (Ann Arbor, 7.9%) 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.

Fastest-growing ZIP codes in Washtenaw County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	48167	Northville	10.4%	24,713	10,593	—
2	48168	Northville	9.6%	25,038	9,058	9,473
3	48109	Ann Arbor	7.9%	5,939	156	—
4	48130	Dexter	7.8%	16,986	6,268	6,438
5	48178	South Lyon	6.8%	37,789	13,953	15,616
6	49236	Clinton	4.6%	5,026	1,928	1,933
7	48108	Ann Arbor	3.4%	27,666	12,347	12,601
8	48118	Chelsea	3.3%	13,246	5,733	5,998
9	48160	Milan	3.0%	13,972	4,947	5,126
10	48158	Manchester	2.4%	7,770	3,149	3,021
11	48198	Ypsilanti	2.1%	39,244	16,471	17,831
12	48170	Plymouth	1.5%	40,076	17,308	18,522
13	48104	Ann Arbor	1.4%	43,979	17,526	19,118
14	48105	Ann Arbor	0.9%	37,048	15,689	—
15	48189	Whitmore Lake	0.5%	13,893	5,833	—
16	48103	Ann Arbor	-0.1%	55,054	24,258	—
17	48191	Willis	-0.7%	4,403	1,662	—
18	48176	Saline	-0.8%	23,451	8,910	9,514
19	48197	Ypsilanti	-2.3%	66,525	27,559	—
20	49240	Grass Lake	-8.5%	8,863	3,629	3,760
21	48137	Gregory	-20.7%	4,157	1,857	—

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; 21 of 22 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 40,028 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 48167 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 Washtenaw County has the fastest population growth?: 48167 (Northville), at 10.4%, among 21 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.