ZIP codes with the most new movers in Carroll County, MD
These are the 14 ZIP codes in Carroll County with the highest share of residents who moved in during the past year, out of 14 with at least 1,000 residents. 21776 (New Windsor, 10.1%), 21771 (Mount Airy, 9.7%) and 21757 (Keymar, 9.3%) lead the list. There is no single "best" ZIP code in Carroll County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.
ZIP codes with the most new movers in Carroll County
| Rank | ZIP | Mailing city | Moved in the past year | Residents | Households | Residential mailboxes |
|---|---|---|---|---|---|---|
| 1 | 21776 | New Windsor | 10.1% | 6,261 | 2,346 | 2,091 |
| 2 | 21771 | Mount Airy | 9.7% | 33,031 | 11,226 | 11,089 |
| 3 | 21757 | Keymar | 9.3% | 2,671 | 1,018 | 1,097 |
| 4 | 21104 | Marriottsville | 8.3% | 6,052 | 2,097 | 2,277 |
| 5 | 21157 | Westminster | 7.7% | 38,984 | 14,785 | 15,042 |
| 6 | 21787 | Taneytown | 7.4% | 11,645 | 4,431 | 4,630 |
| 7 | 21158 | Westminster | 6.7% | 22,083 | 8,451 | 8,114 |
| 8 | 21791 | Union Bridge | 5.7% | 5,340 | 1,968 | 1,829 |
| 9 | 21784 | Sykesville | 5.6% | 39,258 | 13,416 | 14,941 |
| 10 | 21797 | Woodbine | 5.4% | 8,643 | 2,849 | 3,313 |
| 11 | 21074 | Hampstead | 4.6% | 14,777 | 5,889 | 6,081 |
| 12 | 21048 | Finksburg | 4.0% | 10,481 | 3,723 | 4,112 |
| 13 | 21155 | Upperco | 3.1% | 3,313 | 1,032 | 1,008 |
| 14 | 21102 | Manchester | 2.3% | 12,162 | 4,413 | 4,295 |
How we ranked them
Ranked by the share of residents (age 1 and over) who lived in a different home a year earlier (ACS Data Profile, 2020–2024). No margin of error is published for this share in our files. ZIP codes need at least 1,000 residents to be ranked; 14 of 14 qualify.
Which of these to mail, and why
New residents are still choosing a dentist, a gym, a pizza place and a lawn service. ZIP codes with high turnover give a welcome offer more people to work on each year.
The top five ZIP codes on this list hold 31,472 households, on 62 carrier routes with 31,596 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.
Open 21776 on the EDDM route map
More rankings
- Richest ZIP codes in Carroll County
- ZIP codes with the highest home values in Carroll County
- ZIP codes with the highest homeownership in Carroll County
- ZIP codes with the most families with kids in Carroll County
- Youngest ZIP codes in Carroll County
- Oldest ZIP codes in Carroll County
- Fastest-growing ZIP codes in Carroll County
- All Carroll County ZIP codes
Businesses that mail these ZIP codes
Map it and price it
EDDM guides
Frequently asked questions
- Which ZIP code in Carroll County has the highest share of residents who moved in during the past year?
- 21776 (New Windsor), at 10.1%, among 14 ZIP codes with at least 1,000 residents.
- How is this ranking calculated?
- Ranked by the share of residents (age 1 and over) who lived in a different home a year earlier (ACS Data Profile, 2020–2024). No margin of error is published for this share in our files.
- 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.