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

98295 (Sumas), at 53.0%, among 14 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 Whatcom County, WA

These are the 14 ZIP codes in Whatcom County with the highest share of households with children, out of 14 with at least 1,000 residents. 98295 (Sumas, 53.0%), 98240 (Custer, 47.1%) and 98276 (Nooksack, 43.3%) lead the list. There is no single "best" ZIP code in Whatcom 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 Whatcom County

Rank	ZIP	Mailing city	Households with children under 18	Residents	Households	Residential mailboxes
1	98295	Sumas	53.0%	3,279	1,150	1,079
2	98240	Custer	47.1%	3,593	1,265	1,151
3	98276	Nooksack	43.3%	1,794	605	601
4	98247	Everson	37.1%	9,115	3,092	3,064
5	98264	Lynden	36.9%	23,123	8,285	9,312
6	98248	Ferndale	34.8%	28,498	10,083	10,501
7	98237	Concrete	33.2%	4,956	1,855	1,661
8	98230	Blaine	27.7%	18,744	7,976	9,817
9	98229	Bellingham	27.2%	33,298	13,712	14,759
10	98266	Maple Falls	27.2%	4,245	1,749	1,773
11	98226	Bellingham	24.9%	46,782	20,048	21,343
12	98244	Deming	21.7%	2,994	1,270	748
13	98225	Bellingham	15.8%	50,216	22,612	22,819
14	98281	Point Roberts	8.1%	1,288	743	1,701

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; 14 of 17 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 14,397 households, on 34 carrier routes with 15,207 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 98295 on the EDDM route map

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Frequently asked questions

Which ZIP code in Whatcom County has the highest share of households with children?: 98295 (Sumas), at 53.0%, among 14 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.