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

98281 (Point Roberts), at 58.2 (±2.3), 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.

Oldest ZIP codes in Whatcom County, WA

These are the 14 ZIP codes in Whatcom County with the highest median age, out of 14 with at least 1,000 residents. 98281 (Point Roberts, 58.2), 98244 (Deming, 50.7) and 98230 (Blaine, 45.6) 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.

Oldest ZIP codes in Whatcom County

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

How we ranked them

Ranked by median age of all residents, highest 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

Older ZIP codes respond to health care, hearing and vision, Medicare plans, home safety, estate planning and services that come to the door.

The top five ZIP codes on this list hold 31,786 households, on 58 carrier routes with 35,382 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 98281 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 Whatcom County has the highest median age?: 98281 (Point Roberts), at 58.2 (±2.3), among 14 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median age of all residents, highest 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.