Which ZIP code in Santa Cruz County has the fastest population growth?

85611 (Elgin), at 40.9%, 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.

Fastest-growing ZIP codes in Santa Cruz County, AZ

These are the 7 ZIP codes in Santa Cruz County with the fastest population growth, out of 7 with at least 1,000 residents. 85611 (Elgin, 40.9%), 85624 (Patagonia, 19.9%) and 85648 (Rio Rico, 12.4%) 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.

Fastest-growing ZIP codes in Santa Cruz County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	85611	Elgin	40.9%	1,454	585	492
2	85624	Patagonia	19.9%	1,546	756	146
3	85648	Rio Rico	12.4%	22,118	7,240	7,981
4	85621	Nogales	-2.2%	21,593	7,186	7,690
5	85646	Tubac	-4.2%	1,345	746	—
6	85637	Sonoita	-11.6%	1,105	477	129
7	85645	Amado	-49.6%	1,249	600	537

How we ranked them

Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have at least 1,000 residents. ZIP codes need at least 1,000 residents to be ranked; 7 of 8 qualify.

Which of these to mail, and why

Growing ZIP codes add households every year, which means new homes, new routes and customers without a go-to provider yet. Check the route map: new subdivisions can appear as new carrier routes.

The top five ZIP codes on this list hold 16,513 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 85611 on the EDDM route map

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Frequently asked questions

Which ZIP code in Santa Cruz County has the fastest population growth?: 85611 (Elgin), at 40.9%, among 7 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have 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.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.