| Official Name: | Lyndon, Vermont |
| Settlement Type: | Census-designated place |
| Other Name: | Lyndon Corner |
| Pushpin Map: | Vermont#USA |
| Pushpin Label: | Lyndon |
| Coordinates: | 44.5142°N -72.0106°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Vermont |
| Subdivision Type2: | County |
| Subdivision Name2: | Caledonia |
| Subdivision Type3: | Town |
| Subdivision Name3: | Lyndon |
| Area Footnotes: | [1] |
| Area Total Km2: | 0.62 |
| Area Land Km2: | 0.62 |
| Area Water Km2: | 0.0 |
| Population As Of: | 2020 |
| Population: | 203 |
| Population Density Km2: | 327.4 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 224 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 05851 (Lyndonville) |
| Area Code: | 802 |
| Blank Name: | FIPS code |
| Blank Info: | 50-41650 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2805703 |
Lyndon is a census-designated place (CDP) in the town of Lyndon, Caledonia County, Vermont, United States, corresponding to the unincorporated village originally known as Lyndon Corner.[2] The community was first listed as a CDP prior to the 2020 census, at which it had a population of 203.[3]
The village is in northern Caledonia County, in the southern part of the town of Lyndon. It occupies the valley of the South Wheelock Branch, an east-flowing tributary of the Passumpsic River and part of the Connecticut River watershed. U.S. Route 5 (Memorial Drive) passes through the east side of the village, and Interstate 91 forms the CDP's eastern edge. The two highways intersect at I-91's Exit 23 at the northeast corner of the village. US-5 leads north across the Passumpsic River into Lyndonville, the largest village in the town of Lyndon, and south 7miles to St. Johnsbury, while I-91 leads north to Newport and south past St. Johnsbury to White River Junction.