Which ZIP code in Salt Lake City has the highest median age?

84121 (Salt Lake City), at 41.1 (±1.5), among 20 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 Salt Lake City, UT

These are the 20 ZIP codes in Salt Lake City, UT with the highest median age, out of 20 with at least 1,000 residents. 84121 (Salt Lake City, 41.1), 84117 (Salt Lake City, 40.9) and 84124 (Salt Lake City, 39.8) lead the list. There is no single "best" ZIP code in Salt Lake City; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Oldest ZIP codes in Salt Lake City

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	84121	Salt Lake City	41.1 ±1.5	38,912	15,436	—
2	84117	Salt Lake City	40.9 ±2.2	24,980	10,702	—
3	84124	Salt Lake City	39.8 ±1.2	22,609	8,442	8,450
4	84109	Salt Lake City	36.2 ±1.6	25,544	8,973	—
5	84103	Salt Lake City	36.1 ±1.2	23,749	12,557	—
6	84107	Salt Lake City	35.7 ±1.7	38,257	16,669	—
7	84129	Salt Lake City	35.6 ±2.1	37,442	11,856	—
8	84106	Salt Lake City	35.4 ±0.9	35,213	15,950	17,712
9	84105	Salt Lake City	35.0 ±1.7	23,491	10,434	—
10	84123	Salt Lake City	34.7 ±1.0	37,054	14,258	—
11	84104	Salt Lake City	33.6 ±1.6	23,420	8,135	8,265
12	84108	Salt Lake City	33.6 ±2.3	22,390	7,850	8,260
13	84115	Salt Lake City	33.0 ±1.3	28,882	13,115	—
14	84111	Salt Lake City	32.6 ±1.2	12,782	7,915	—
15	84116	Salt Lake City	32.4 ±1.1	38,625	14,095	14,795
16	84118	Salt Lake City	32.2 ±1.3	42,853	12,243	11,431
17	84101	Salt Lake City	31.8 ±2.4	9,381	5,727	—
18	84128	West Valley City	30.9 ±1.8	32,126	8,414	8,361
19	84102	Salt Lake City	29.4 ±1.0	18,777	10,383	10,678
20	84112	Salt Lake City	19.9 ±0.5	2,841	235	629

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; 20 of 25 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 56,110 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 84121 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Salt Lake City has the highest median age?: 84121 (Salt Lake City), at 41.1 (±1.5), among 20 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.