Oldest ZIP codes in Silver Spring, MD
These are the 8 ZIP codes in Silver Spring, MD with the highest median age, out of 8 with at least 1,000 residents. 20905 (Silver Spring, 44.8), 20906 (Silver Spring, 41.2) and 20904 (Silver Spring, 40.6) lead the list. There is no single "best" ZIP code in Silver Spring; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.
Oldest ZIP codes in Silver Spring
| Rank | ZIP | Mailing city | Median age | Residents | Households | Residential mailboxes |
|---|---|---|---|---|---|---|
| 1 | 20905 | Silver Spring | 44.8 ±1.1 | 19,004 | 5,899 | 5,788 |
| 2 | 20906 | Silver Spring | 41.2 ±1.3 | 70,595 | 25,958 | 27,180 |
| 3 | 20904 | Silver Spring | 40.6 ±1.2 | 58,646 | 21,212 | 21,983 |
| 4 | 20901 | Silver Spring | 39.5 ±1.3 | 36,435 | 13,114 | 13,058 |
| 5 | 20912 | Takoma Park | 38.2 ±1.9 | 25,749 | 9,884 | 9,675 |
| 6 | 20902 | Silver Spring | 36.6 ±1.3 | 54,261 | 18,236 | 18,457 |
| 7 | 20910 | Silver Spring | 35.4 ±0.9 | 45,943 | 22,123 | 24,156 |
| 8 | 20903 | Silver Spring | 34.3 ±2.3 | 24,815 | 7,205 | 7,075 |
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; 8 of 8 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 76,067 households, on 153 carrier routes with 77,684 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.
Open 20905 on the EDDM route map
More rankings
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- ZIP codes with the most new movers in Silver Spring
- Youngest ZIP codes in Silver Spring
- Fastest-growing ZIP codes in Silver Spring
- Oldest ZIP codes in Montgomery County
- All Silver Spring ZIP codes
Businesses that mail these ZIP codes
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EDDM guides
Frequently asked questions
- Which ZIP code in Silver Spring has the highest median age?
- 20905 (Silver Spring), at 44.8 (±1.1), among 8 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.