Oldest ZIP codes in Miami-Dade County, FL
These are the 25 ZIP codes in Miami-Dade County with the highest median age, out of 78 with at least 1,000 residents. 33109 (Miami Beach, 54.6), 33175 (Miami, 50.1) and 33165 (Miami, 49.2) lead the list. There is no single "best" ZIP code in Miami-Dade County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.
Oldest ZIP codes in Miami-Dade County
| Rank | ZIP | Mailing city | Median age | Residents | Households | Residential mailboxes |
|---|---|---|---|---|---|---|
| 1 | 33109 | Miami Beach | 54.6 ±14.8 | 1,083 | 428 | 743 |
| 2 | 33175 | Miami | 50.1 ±1.5 | 48,237 | 17,059 | 17,372 |
| 3 | 33165 | Miami | 49.2 ±1.5 | 48,817 | 17,051 | 17,639 |
| 4 | 33010 | Hialeah | 48.7 ±1.5 | 41,701 | 15,352 | 15,812 |
| 5 | 33183 | Miami | 48.1 ±1.7 | 33,527 | 12,209 | 12,521 |
| 6 | 33160 | North Miami Beach | 48.0 ±1.6 | 43,718 | 19,941 | 31,655 |
| 7 | 33012 | Hialeah | 47.9 ±1.5 | 71,017 | 25,386 | 24,412 |
| 8 | 33013 | Hialeah | 47.8 ±2.3 | 30,695 | 9,253 | 9,185 |
| 9 | 33182 | Miami | 46.9 ±2.7 | 12,512 | 4,175 | 4,045 |
| 10 | 33158 | Miami | 46.7 ±3.9 | 5,960 | 2,057 | 2,301 |
| 11 | 33126 | Miami | 46.4 ±2.0 | 47,307 | 18,714 | 18,684 |
| 12 | 33144 | Miami | 46.2 ±4.5 | 25,909 | 9,068 | 8,681 |
| 13 | 33184 | Miami | 45.9 ±1.7 | 19,859 | 6,717 | 6,528 |
| 14 | 33134 | Miami | 45.7 ±1.8 | 38,174 | 16,166 | 17,252 |
| 15 | 33141 | Miami Beach | 45.4 ±1.8 | 36,438 | 16,872 | 19,754 |
| 16 | 33194 | Miami | 45.4 ±1.7 | 8,069 | 1,956 | 1,582 |
| 17 | 33155 | Miami | 44.9 ±1.7 | 43,983 | 15,368 | 16,877 |
| 18 | 33173 | Miami | 44.5 ±2.0 | 31,778 | 11,354 | 12,453 |
| 19 | 33055 | Opa Locka | 44.4 ±2.6 | 37,659 | 11,703 | 12,427 |
| 20 | 33180 | Miami | 44.3 ±2.4 | 34,147 | 14,077 | 19,388 |
| 21 | 33016 | Hialeah | 44.1 ±2.0 | 45,551 | 15,602 | 15,622 |
| 22 | 33129 | Miami | 44.1 ±4.1 | 14,702 | 6,928 | 7,716 |
| 23 | 33172 | Miami | 43.7 ±2.1 | 39,101 | 14,591 | 15,644 |
| 24 | 33185 | Miami | 43.7 ±2.6 | 28,555 | 8,901 | 8,628 |
| 25 | 33128 | Miami | 43.7 ±3.1 | 9,475 | 4,395 | 4,930 |
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; 78 of 80 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 62,099 households, on 114 carrier routes with 64,087 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.
Open 33109 on the EDDM route map
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- Youngest ZIP codes in Miami-Dade County
- Fastest-growing ZIP codes in Miami-Dade County
- All Miami-Dade County ZIP codes
Businesses that mail these ZIP codes
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EDDM guides
Frequently asked questions
- Which ZIP code in Miami-Dade County has the highest median age?
- 33109 (Miami Beach), at 54.6 (±14.8), among 78 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.