| Allison Gap | |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Virginia#USA |
| Pushpin Label Position: | none |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Virginia |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Smyth |
| Population As Of: | 2020 |
| Population Total: | 610 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Postal Code Type: | ZIP code |
| Area Code: | 540 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
Allison Gap is an unincorporated community and census-designated place in Smyth County, Virginia.
It was defined as a census-designated place (then termed an unincorporated place) at the 1950 United States Census where it had a population of 1,015.[1] It did not reappear at subsequent censuses until 2020 when it was relisted as a CDP with a population of 610.[2]
Climate in this area has mild differences between highs and lows, and there is adequate rainfall year-round. The Köppen Climate Classification subtype for this climate is "Cfb". (Marine West Coast Climate/Oceanic climate).[3]