Which ZIP code in Whatcom County has the lowest median age?

98276 (Nooksack), at 31.6 (±4.4), 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.

Youngest ZIP codes in Whatcom County, WA

These are the 14 ZIP codes in Whatcom County with the lowest median age, out of 14 with at least 1,000 residents. 98276 (Nooksack, 31.6), 98225 (Bellingham, 31.8) and 98264 (Lynden, 35.8) 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.

Youngest ZIP codes in Whatcom County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	98276	Nooksack	31.6 ±4.4	1,794	605	601
2	98225	Bellingham	31.8 ±1.5	50,216	22,612	22,819
3	98264	Lynden	35.8 ±2.3	23,123	8,285	9,312
4	98247	Everson	36.6 ±3.5	9,115	3,092	3,064
5	98240	Custer	36.9 ±4.6	3,593	1,265	1,151
6	98295	Sumas	37.1 ±1.6	3,279	1,150	1,079
7	98248	Ferndale	37.7 ±2.1	28,498	10,083	10,501
8	98229	Bellingham	39.1 ±1.9	33,298	13,712	14,759
9	98237	Concrete	39.9 ±6.2	4,956	1,855	1,661
10	98226	Bellingham	41.1 ±2.0	46,782	20,048	21,343
11	98266	Maple Falls	43.0 ±1.9	4,245	1,749	1,773
12	98230	Blaine	45.6 ±2.3	18,744	7,976	9,817
13	98244	Deming	50.7 ±5.1	2,994	1,270	748
14	98281	Point Roberts	58.2 ±2.3	1,288	743	1,701

How we ranked them

Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 14 of 17 qualify.

Which of these to mail, and why

Younger ZIP codes skew toward renters, students and young families: fitness, quick-service food, apartments, entertainment and first-time-buyer offers.

The top five ZIP codes on this list hold 35,859 households, on 68 carrier routes with 36,947 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 98276 on the EDDM route map

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Frequently asked questions

Which ZIP code in Whatcom County has the lowest median age?: 98276 (Nooksack), at 31.6 (±4.4), among 14 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024).
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.