100 Largest ZIP Codes in the United States by Population in Belknap County, New Hampshire
Explore the 100 largest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Belknap County, New Hampshire.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 03246 | LACONIA | NH | 16,943 |
| 2 | 03276 | TILTON | NH | 8,811 |
| 3 | 03249 | GILFORD | NH | 7,725 |
| 4 | 03220 | BELMONT | NH | 7,454 |
| 5 | 03253 | MEREDITH | NH | 6,701 |
| 6 | 03809 | ALTON | NH | 3,617 |
| 7 | 03225 | CENTER BARNSTEAD | NH | 3,406 |
| 8 | 03269 | SANBORNTON | NH | 2,957 |
| 9 | 03256 | NEW HAMPTON | NH | 2,591 |
| 10 | 03237 | GILMANTON | NH | 2,338 |
| 11 | 03810 | ALTON BAY | NH | 2,286 |
| 12 | 03837 | GILMANTON IRON WORKS | NH | 1,622 |
| 13 | 03218 | BARNSTEAD | NH | 1,535 |
| 14 | 03226 | CENTER HARBOR | NH | 820 |