| Place Name | Fairfield |
| Place Type | City |
| ZIP Code(s) | 83327 |
| County | Camas County |
| Area Code(s) | 208 |
| Timezone | Mountain Daylight Time (MDT) |
| Population (2022) | 483 |
| Population Growth Rate (2010-19) | 6.01% |
| Majority Ethnicity | White 95.83% |
| Metro/Micro Stats Area | Hailey, ID |
| US Congressional District(s) | Idaho 2nd |
| State House Districts | 26 |
| State Senate Districts | 26 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.83% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.17% |