Oldest ZIP codes in Cedar Rapids, IA
These are the 6 ZIP codes in Cedar Rapids, IA with the highest median age, out of 6 with at least 1,000 residents. 52411 (Cedar Rapids, 46.5), 52403 (Cedar Rapids, 45.0) and 52405 (Cedar Rapids, 40.7) lead the list. There is no single "best" ZIP code in Cedar Rapids; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.
Oldest ZIP codes in Cedar Rapids
| Rank | ZIP | Mailing city | Median age | Residents | Households | Residential mailboxes |
|---|---|---|---|---|---|---|
| 1 | 52411 | Cedar Rapids | 46.5 ±2.6 | 8,342 | 2,872 | — |
| 2 | 52403 | Cedar Rapids | 45.0 ±3.2 | 22,551 | 9,875 | — |
| 3 | 52405 | Cedar Rapids | 40.7 ±2.4 | 26,526 | 11,532 | — |
| 4 | 52402 | Cedar Rapids | 36.9 ±1.0 | 42,938 | 18,886 | 18,643 |
| 5 | 52401 | Cedar Rapids | 34.4 ±2.6 | 2,181 | 1,339 | — |
| 6 | 52404 | Cedar Rapids | 33.8 ±1.2 | 42,958 | 18,170 | 20,344 |
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 44,504 households. Open any of them on the route map to see each carrier route's own figures before you choose.
Open 52411 on the EDDM route map
More rankings
- Richest ZIP codes in Cedar Rapids
- ZIP codes with the highest home values in Cedar Rapids
- ZIP codes with the highest homeownership in Cedar Rapids
- ZIP codes with the most families with kids in Cedar Rapids
- ZIP codes with the most new movers in Cedar Rapids
- Youngest ZIP codes in Cedar Rapids
- Fastest-growing ZIP codes in Cedar Rapids
- Oldest ZIP codes in Linn County
- All Cedar Rapids ZIP codes
Businesses that mail these ZIP codes
Map it and price it
EDDM guides
Frequently asked questions
- Which ZIP code in Cedar Rapids has the highest median age?
- 52411 (Cedar Rapids), at 46.5 (±2.6), 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.