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

10501 (Amawalk), at 42.4%, among 64 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 Westchester County, NY

These are the 25 ZIP codes in Westchester County with the fastest population growth, out of 64 with at least 1,000 residents. 10501 (Amawalk, 42.4%), 10526 (Goldens Bridge, 20.7%) and 10701 (Yonkers, 14.7%) lead the list. There is no single "best" ZIP code in Westchester 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 Westchester County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	10501	Amawalk	42.4%	1,727	482	337
2	10526	Goldens Bridge	20.7%	2,128	651	681
3	10701	Yonkers	14.7%	70,676	27,547	27,178
4	10546	Millwood	13.4%	1,392	573	488
5	10530	Hartsdale	13.2%	13,892	6,409	6,034
6	10601	White Plains	12.4%	11,930	5,933	8,154
7	10502	Ardsley	12.4%	6,197	1,945	2,069
8	10548	Montrose	12.2%	4,254	1,128	1,174
9	10604	West Harrison	10.9%	12,517	4,517	5,140
10	10511	Buchanan	10.7%	2,397	831	1,047
11	10552	Mount Vernon	10.6%	22,341	9,470	9,094
12	10506	Bedford	9.6%	6,244	2,240	2,093
13	10805	New Rochelle	9.5%	20,903	8,636	7,638
14	10553	Mount Vernon	9.3%	11,011	3,642	3,277
15	10538	Larchmont	8.9%	17,760	6,743	6,613
16	10706	Hastings On Hudson	8.1%	9,183	3,468	3,488
17	10532	Hawthorne	8.0%	5,347	1,804	1,704
18	10709	Eastchester	7.8%	10,352	3,628	2,632
19	10528	Harrison	6.9%	14,091	5,099	4,824
20	10562	Ossining	6.8%	33,793	11,548	11,357
21	10566	Peekskill	6.7%	25,625	10,777	9,722
22	10580	Rye	6.1%	18,391	6,213	6,563
23	10603	White Plains	5.8%	18,910	7,128	7,203
24	10804	New Rochelle	5.8%	16,108	5,506	5,151
25	10573	Port Chester	5.1%	40,786	14,412	13,007

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; 64 of 75 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 35,662 households, on 49 carrier routes with 34,718 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 10501 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 Westchester County has the fastest population growth?: 10501 (Amawalk), at 42.4%, among 64 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.