Which ZIP code in Westchester County has the highest share of households with children?

10578 (Purdys), at 63.7%, among 65 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 families with kids in Westchester County, NY

These are the 25 ZIP codes in Westchester County with the highest share of households with children, out of 65 with at least 1,000 residents. 10578 (Purdys, 63.7%), 10514 (Chappaqua, 50.9%) and 10502 (Ardsley, 49.7%) 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.

ZIP codes with the most families with kids in Westchester County

Rank	ZIP	Mailing city	Households with children under 18	Residents	Households	Residential mailboxes
1	10578	Purdys	63.7%	1,780	551	214
2	10514	Chappaqua	50.9%	11,790	3,999	4,155
3	10502	Ardsley	49.7%	6,197	1,945	2,069
4	10577	Purchase	48.1%	5,945	794	1,042
5	10803	Pelham	47.6%	13,072	4,298	4,399
6	10580	Rye	46.4%	18,391	6,213	6,563
7	10504	Armonk	45.1%	7,665	2,458	2,804
8	10533	Irvington	44.0%	7,362	2,636	2,941
9	10583	Scarsdale	43.8%	40,207	14,032	14,563
10	10528	Harrison	43.6%	14,091	5,099	4,824
11	10804	New Rochelle	42.7%	16,108	5,506	5,151
12	10536	Katonah	40.3%	10,669	3,382	3,655
13	10522	Dobbs Ferry	39.9%	11,502	3,962	4,303
14	10501	Amawalk	39.2%	1,727	482	337
15	10523	Elmsford	38.8%	9,450	3,180	3,250
16	10538	Larchmont	38.6%	17,760	6,743	6,613
17	10511	Buchanan	38.4%	2,397	831	1,047
18	10570	Pleasantville	38.3%	13,289	4,300	4,535
19	10604	West Harrison	38.3%	12,517	4,517	5,140
20	10547	Mohegan Lake	38.0%	7,205	2,663	2,685
21	10543	Mamaroneck	37.4%	20,989	7,630	7,551
22	10506	Bedford	37.4%	6,244	2,240	2,093
23	10548	Montrose	36.8%	4,254	1,128	1,174
24	10594	Thornwood	36.7%	5,110	1,698	1,712
25	10526	Goldens Bridge	36.6%	2,128	651	681

How we ranked them

Ranked by the share of households with one or more people under 18 (ACS Data Profile, 2020–2024). The Census Bureau does not publish a margin of error for this share in our files. ZIP codes need at least 1,000 residents to be ranked; 65 of 75 qualify.

Which of these to mail, and why

Households with children buy tutoring, youth sports, pediatric and family dental care, child care, birthday venues and family dining. EDDM reaches every door on a route, so a higher share means more of your pieces land with families.

The top five ZIP codes on this list hold 11,587 households, on 36 carrier routes with 11,879 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 10578 on the EDDM route map

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Frequently asked questions

Which ZIP code in Westchester County has the highest share of households with children?: 10578 (Purdys), at 63.7%, among 65 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the share of households with one or more people under 18 (ACS Data Profile, 2020–2024). The Census Bureau does not publish a margin of error 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.