| Place Name | Water Valley |
| Place Type | Census Designated Place |
| ZIP Code(s) | 42085 |
| County | Graves County |
| Area Code(s) | 270,364 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 345 |
| Population Growth Rate (2010-19) | -15.77% |
| Majority Ethnicity | White 91% |
| Metro/Micro Stats Area | Mayfield, KY |
| US Congressional District(s) | Kentucky 1st |
| State House Districts | 2 |
| State Senate Districts | 1 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 91% |
| African American | 0% |
| Hispanic | 6% |
| Asian | 3% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |