Which ZIP code in Seattle has the lowest median age?

98195 (Seattle), at 19.3 (±0.4), among 33 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 Seattle, WA

These are the 25 ZIP codes in Seattle, WA with the lowest median age, out of 33 with at least 1,000 residents. 98195 (Seattle, 19.3), 98105 (Seattle, 24.6) and 98109 (Seattle, 31.7) lead the list. There is no single "best" ZIP code in Seattle; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Youngest ZIP codes in Seattle

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	98195	Seattle	19.3 ±0.4	2,757	5	—
2	98105	Seattle	24.6 ±0.7	49,767	18,756	22,444
3	98109	Seattle	31.7 ±0.7	34,328	21,883	26,360
4	98122	Seattle	32.4 ±0.8	43,234	23,964	27,990
5	98121	Seattle	33.2 ±1.1	21,166	14,288	18,512
6	98102	Seattle	33.8 ±0.7	27,333	17,489	18,763
7	98101	Seattle	33.8 ±1.1	17,153	11,722	13,359
8	98119	Seattle	34.1 ±1.0	26,879	14,249	14,169
9	98107	Seattle	34.2 ±0.9	28,776	15,835	17,496
10	98103	Seattle	34.5 ±0.8	52,671	26,873	29,056
11	98198	Seattle	36.1 ±2.0	40,463	14,588	15,323
12	98106	Seattle	36.3 ±0.8	28,690	11,791	11,696
13	98148	Seattle	36.4 ±2.8	9,715	3,954	4,542
14	98108	Seattle	36.9 ±1.0	25,529	9,016	8,873
15	98125	Seattle	37.3 ±1.2	44,520	20,688	22,105
16	98115	Seattle	37.5 ±0.9	54,349	23,843	26,226
17	98188	Seattle	37.5 ±2.1	27,311	11,430	11,394
18	98104	Seattle	37.5 ±1.8	16,542	9,578	14,051
19	98126	Seattle	37.6 ±1.1	22,975	10,248	11,137
20	98168	Seattle	38.0 ±1.8	35,528	12,260	13,060
21	98118	Seattle	38.4 ±1.1	50,500	19,176	21,274
22	98144	Seattle	38.4 ±1.5	33,787	16,019	20,158
23	98199	Seattle	39.5 ±1.2	22,468	10,052	9,948
24	98133	Seattle	39.7 ±1.3	53,249	23,701	25,933
25	98178	Seattle	39.7 ±1.6	26,748	9,349	9,572

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; 33 of 38 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 78,896 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 98195 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

Map it and price it

EDDM guides

Frequently asked questions

Which ZIP code in Seattle has the lowest median age?: 98195 (Seattle), at 19.3 (±0.4), among 33 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.