Youngest ZIP codes in Lafayette County, WI
These are the 11 ZIP codes in Lafayette County with the lowest median age, out of 11 with at least 1,000 residents. 53818 (Platteville, 24.8), 53530 (Darlington, 37.2) and 53510 (Belmont, 39.7) lead the list. There is no single "best" ZIP code in Lafayette County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.
Youngest ZIP codes in Lafayette County
| Rank | ZIP | Mailing city | Median age | Residents | Households | Residential mailboxes |
|---|---|---|---|---|---|---|
| 1 | 53818 | Platteville | 24.8 ±0.6 | 16,024 | 5,712 | 5,760 |
| 2 | 53530 | Darlington | 37.2 ±5.0 | 4,569 | 1,757 | 1,887 |
| 3 | 53510 | Belmont | 39.7 ±4.2 | 1,435 | 587 | 517 |
| 4 | 53586 | Shullsburg | 40.7 ±3.7 | 2,211 | 876 | 790 |
| 5 | 53803 | Benton | 41.2 ±5.3 | 1,386 | 552 | — |
| 6 | 53811 | Hazel Green | 42.7 ±4.8 | 3,093 | 1,268 | — |
| 7 | 53807 | Cuba City | 43.0 ±3.3 | 4,209 | 1,673 | — |
| 8 | 53565 | Mineral Point | 43.7 ±2.3 | 4,778 | 2,006 | — |
| 9 | 53504 | Argyle | 44.4 ±5.2 | 2,281 | 962 | 823 |
| 10 | 53587 | South Wayne | 45.4 ±6.3 | 1,177 | 464 | — |
| 11 | 53516 | Blanchardville | 45.8 ±3.9 | 2,238 | 985 | 937 |
How we ranked them
Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 11 of 13 qualify.
Which of these to mail, and why
Younger ZIP codes skew toward renters, students and young families: fitness, quick-service food, apartments, entertainment and first-time-buyer offers.
The top five ZIP codes on this list hold 9,484 households. Open any of them on the route map to see each carrier route's own figures before you choose.
Open 53818 on the EDDM route map
More rankings
- Richest ZIP codes in Lafayette County
- ZIP codes with the highest home values in Lafayette County
- ZIP codes with the highest homeownership in Lafayette County
- ZIP codes with the most families with kids in Lafayette County
- ZIP codes with the most new movers in Lafayette County
- Oldest ZIP codes in Lafayette County
- Fastest-growing ZIP codes in Lafayette County
- All Lafayette County ZIP codes
Businesses that mail these ZIP codes
Map it and price it
EDDM guides
Frequently asked questions
- Which ZIP code in Lafayette County has the lowest median age?
- 53818 (Platteville), at 24.8 (±0.6), among 11 ZIP codes with at least 1,000 residents.
- How is this ranking calculated?
- Ranked by median age of all residents, lowest 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.