| County : | Madison County |
| State : | Idaho (ID) |
| Land Area : | 469.20 sq mi |
| Water Area : | 4.02 sq mi |
| Latitude : | 43.7897087 |
| Longitude : | -111.6565500 |
| Population (2010): | 37,536 |
| Population Estimate (2012) : | 37,311 |
| Population Density : | 80.00/sq mi |
| Housing Units (2012) : | 11,280 |
| Median Household Income (2012) : | $33,776 (Idaho : $47,015, USA : $53,046) |
| Median Family Income (2012) : | $37,581 (Idaho : $55,636, USA : $64,585) |
| Median House Price (2012) : | $171,600 (Idaho : $167,100, USA : $181,400) |
Madison County Cities / Towns
| Rexburg City (25,484) | Sugar City (1,514) |
Madison County Zip Codes
| 83434 (1,741) | 83436 (491) | 83440 (34,610) |
| 83443 (1,107) | 83445 (7,406) | 83448 (2,451) |
| 83451 (791) | 83460 (860) |