Oldest ZIP codes in Peoria, AZ
These are the 6 ZIP codes in Peoria, AZ with the highest median age, out of 6 with at least 1,000 residents. 85373 (Sun City, 64.5), 85324 (Black Canyon City, 60.5) and 85382 (Peoria, 44.6) lead the list. There is no single "best" ZIP code in Peoria; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.
Oldest ZIP codes in Peoria
| Rank | ZIP | Mailing city | Median age | Residents | Households | Residential mailboxes |
|---|---|---|---|---|---|---|
| 1 | 85373 | Sun City | 64.5 ±2.0 | 20,254 | 9,308 | 9,680 |
| 2 | 85324 | Black Canyon City | 60.5 ±3.3 | 2,181 | 1,089 | 1,183 |
| 3 | 85382 | Peoria | 44.6 ±1.9 | 43,729 | 17,693 | 19,735 |
| 4 | 85381 | Peoria | 42.4 ±2.7 | 27,650 | 10,551 | 10,548 |
| 5 | 85383 | Peoria | 40.4 ±0.9 | 74,390 | 25,364 | 30,306 |
| 6 | 85345 | Peoria | 36.7 ±1.5 | 60,918 | 22,566 | 24,866 |
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; 6 of 6 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 64,005 households, on 96 carrier routes with 71,452 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.
Open 85373 on the EDDM route map
More rankings
- Richest ZIP codes in Peoria
- ZIP codes with the highest home values in Peoria
- ZIP codes with the highest homeownership in Peoria
- ZIP codes with the most families with kids in Peoria
- ZIP codes with the most new movers in Peoria
- Youngest ZIP codes in Peoria
- Fastest-growing ZIP codes in Peoria
- Oldest ZIP codes in Maricopa County
- All Peoria ZIP codes
Businesses that mail these ZIP codes
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EDDM guides
Frequently asked questions
- Which ZIP code in Peoria has the highest median age?
- 85373 (Sun City), at 64.5 (±2.0), among 6 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.