Which ZIP code in Santa Cruz County has the lowest median age?

85648 (Rio Rico), at 34.7 (±1.4), among 7 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 Santa Cruz County, AZ

These are the 7 ZIP codes in Santa Cruz County with the lowest median age, out of 7 with at least 1,000 residents. 85648 (Rio Rico, 34.7), 85621 (Nogales, 36.6) and 85611 (Elgin, 45.4) lead the list. There is no single "best" ZIP code in Santa Cruz 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 Santa Cruz County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	85648	Rio Rico	34.7 ±1.4	22,118	7,240	7,981
2	85621	Nogales	36.6 ±1.3	21,593	7,186	7,690
3	85611	Elgin	45.4 ±11.1	1,454	585	492
4	85624	Patagonia	59.5 ±9.0	1,546	756	146
5	85637	Sonoita	60.3 ±9.6	1,105	477	129
6	85645	Amado	60.5 ±2.7	1,249	600	537
7	85646	Tubac	71.9 ±3.6	1,345	746	—

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; 7 of 8 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 16,244 households, on 25 carrier routes with 16,438 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 85648 on the EDDM route map

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Frequently asked questions

Which ZIP code in Santa Cruz County has the lowest median age?: 85648 (Rio Rico), at 34.7 (±1.4), among 7 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.