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

13620 (Castorland), at 37.8%, among 12 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 Lewis County, NY

These are the 12 ZIP codes in Lewis County with the highest share of households with children, out of 12 with at least 1,000 residents. 13620 (Castorland, 37.8%), 13619 (Carthage, 36.9%) and 13368 (Lyons Falls, 32.6%) lead the list. There is no single "best" ZIP code in Lewis 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 Lewis County

Rank	ZIP	Mailing city	Households with children under 18	Residents	Households	Residential mailboxes
1	13620	Castorland	37.8%	2,298	910	752
2	13619	Carthage	36.9%	10,578	4,184	4,295
3	13368	Lyons Falls	32.6%	1,129	470	317
4	13367	Lowville	31.4%	8,601	3,456	3,495
5	13433	Port Leyden	30.8%	1,686	734	444
6	13648	Harrisville	28.7%	2,236	964	845
7	13316	Camden	27.5%	6,063	2,727	2,504
8	13327	Croghan	27.0%	2,009	871	706
9	13471	Taberg	25.2%	2,806	1,084	1,155
10	13309	Boonville	24.7%	5,825	2,558	2,425
11	13626	Copenhagen	24.7%	2,202	911	664
12	13343	Glenfield	20.3%	1,606	733	668

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; 12 of 21 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 9,754 households, on 21 carrier routes with 9,303 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 13620 on the EDDM route map

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Frequently asked questions

Which ZIP code in Lewis County has the highest share of households with children?: 13620 (Castorland), at 37.8%, among 12 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.