Flüelen has an area (as of the 2004/09 survey) of 12.38 km² (4.78 sq mi).
 Of this area, about 23.9% is used for agricultural purposes, while 58.1% is forested.
 Of the rest of the land, 6.4% is settled (buildings or roads) and 11.6% is unproductive land.
 In the 2004/09 survey a total of 45 ha (110 acres) or about 3.6% of the total area was covered with buildings, an increase of 7 ha (17 acres) over the 1981/85 amount.
 Over the same time period, the amount of recreational space in the municipality increased by 2 ha (4.9 acres) and is now about 0.56% of the total area.
 Of the agricultural land 90 ha (220 acres) is fields and grasslands and 285 ha (700 acres) consists of alpine grazing areas.
 Since 1981/85 the amount of agricultural land has decreased by 16 ha (40 acres).
 Over the same time period the amount of forested land has increased by 7 ha (17 acres).
 Rivers and lakes cover 9 ha (22 acres) in the municipality.

The municipality is located along Lake Lucerne.
 It developed as a transshipment point on the trade routes over the Gotthard pass and along the lake.
 It consists of the village of Flüelen, the outer village settlements and scattered farm houses in the valley and up the mountain sides.
Flüelen has an area (as of the 2004/09 survey) of 12.38 km² (4.78 sq mi).  Of this area, about 23.9% is used for agricultural purposes, while 58.1% is forested.  Of the rest of the land, 6.4% is settled (buildings or roads) and 11.6% is unproductive land.  In the 2004/09 survey a total of 45 ha (110 acres) or about 3.6% of the total area was covered with buildings, an increase of 7 ha (17 acres) over the 1981/85 amount.  Over the same time period, the amount of recreational space in the municipality increased by 2 ha (4.9 acres) and is now about 0.56% of the total area.  Of the agricultural land 90 ha (220 acres) is fields and grasslands and 285 ha (700 acres) consists of alpine grazing areas.  Since 1981/85 the amount of agricultural land has decreased by 16 ha (40 acres).  Over the same time period the amount of forested land has increased by 7 ha (17 acres).  Rivers and lakes cover 9 ha (22 acres) in the municipality.
The municipality is located along Lake Lucerne.  It developed as a transshipment point on the trade routes over the Gotthard pass and along the lake.  It consists of the village of Flüelen, the outer village settlements and scattered farm houses in the valley and up the mountain sides.
Flüelen