| Aetna | |
| Settlement Type: | Hamlet |
| Pushpin Relief: | yes |
| Pushpin Map: | Canada Alberta#Canada |
| Pushpin Map Caption: | Location of Aetna |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Alberta |
| Subdivision Type2: | Region |
| Subdivision Name2: | Southern Alberta |
| Subdivision Type3: | Census division |
| Subdivision Name3: | 3 |
| Subdivision Type4: | Municipal district |
| Subdivision Name4: | Cardston County |
| Government Type: | Unincorporated |
| Leader Title1: | Governing body |
| Leader Name1: | Cardston County Council |
| Established Title: | Established |
| Area Footnotes: | (2021) |
| Area Land Km2: | 0.95 |
| Population As Of: | 2021 |
| Population Total: | 109 |
| Population Density Km2: | 114.6 |
| Timezone: | MST |
| Utc Offset: | −07:00 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | −06:00 |
| Coordinates: | 49.1339°N -113.24°W |
| Postal Code Type: | Postal code |
| Area Codes: | 403, 587, 825 |
| Blank Name: | Highways |
| Blank1 Name: | Waterways |
Aetna is a hamlet in southern Alberta, Canada within Cardston County, located east of Highway 2, approximately southwest of Lethbridge.
Settlement of the Aetna area began in 1888.[1] Until 1893, the area was known as Snake Creek. In 1893 the community was named after Mount Etna by John W. Taylor, apostle for the Church of Jesus Christ of Latter-day Saints, who said a nearby hill resembled the Sicilian mountain.[2]
In the 2021 Census of Population conducted by Statistics Canada, Aetna had a population of 109 living in 35 of its 37 total private dwellings, a change of from its 2016 population of 113. With a land area of, it had a population density of in 2021.[3]
As a designated place in the 2016 Census of Population conducted by Statistics Canada, Aetna had a population of 113 living in 31 of its 33 total private dwellings, a change of from its 2011 population of 75. With a land area of 0.95km2, it had a population density of in 2016.[4]