| Lopez Island Airport | |
| Faa: | S31 |
| Type: | Public |
| Owner: | Port of Lopez |
| Location: | Lopez Island, Washington |
| Pushpin Map: | USA Washington#USA |
| Pushpin Label: | S31 |
| Elevation-F: | 209 |
| Elevation-M: | 64 |
| Coordinates: | 48.4839°N -122.9378°W |
| R1-Number: | 16/34 |
| R1-Length-F: | 2,905 |
| R1-Length-M: | 885 |
| R1-Surface: | Asphalt |
| Stat-Year: | 2021 |
| Stat1-Header: | Aircraft operations |
| Stat1-Data: | 10,004 |
| Stat2-Header: | Based aircraft |
| Stat2-Data: | 26 |
| Footnotes: | Source: Federal Aviation Administration[1] |
Lopez Island Airport is a public use airport located three nautical miles (6 km) south of the central business district of Lopez, a village on Lopez Island in San Juan County, Washington, United States. It is owned by the Port of Lopez.
Lopez Island Airport covers an area of 93acres at an elevation of 209 feet (64 m) above mean sea level. It has one runway designated 16/34 with an asphalt surface measuring 2,905 by 61 feet (885 x 19 m).
For the 12-month period ending December 31, 2021, the airport had 10,004 aircraft operations, an average of 27 per day: 75% general aviation, 25% air taxi, and <1% military. At that time there were 26 aircraft based at this airport: 25 single-engine, and 1 multi-engine.