| Name | Madison County |
| State | Idaho |
| FIPS Code | 16065 |
| County Seat | Rexburg |
| Timezone | Mountain Daylight Time (MDT) |
| Population (2024) | 55,123 |
| Population Growth Rate(2020-2024) | 4.01% |
| Majority Ethnicity | White 87.38% |
| Public School Majority Ethnicity | White 87% |
| Partisan Voting Index | Strongly Republican:+31 |
| Unemployment Rate (May 2026) | 3.1% |
| Sales Tax Rate (2025) | 6% |
| Area Code(s) | 208 / 986 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 87.38% |
| African American | 0.91% |
| Hispanic | 9.63% |
| Asian | 1.43% |
| Native American | 0.31% |
| Hawaiin/Pacific Islander | 0.34% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 86.97% |
| African American | 0.75% |
| Hispanic | 10.09% |
| Asian | 0.65% |
| Native American | 0.35% |
| Hawaiin/Pacific Islander | 0.56% |