| Place Name | Madison |
| Place Type | Town |
| ZIP Code(s) | 03849 |
| County | Carroll County |
| Area Code(s) | 603 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 2,564 |
| Majority Ethnicity | White 98.93% |
| US Congressional District(s) | New Hampshire 1st |
| State House Districts | Carroll 3 |
| State Senate Districts | 3 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.93% |
| African American | 0.12% |
| Hispanic | 0% |
| Asian | 0.83% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.12% |