Lake Geneva, Wisconsin males. For every 100 females age 18 and over, there were 92.6 males. The median income for a household in the city was $40,924, and the median income for a family was $54,543. Males had a median income of $38,930 versus $25,671 for females. The per capita income for the city was $21,536. About 4.7% of families and 7.2% of the population were below the poverty line, including 9.0% of those under age 18 and 5.5% of those age 65 or over. The city of Lake Geneva operates under a mayor-council form of government. The city has four aldermanic districts
Geneva 15.7%. Of the agricultural land, 0.3% is used for growing crops. Of the water in the municipality, 0.2% is composed of lakes and 2.9% is rivers and streams. The altitude of Geneva is , and corresponds to the altitude of the largest of the Pierres du Niton, two large rocks emerging from the lake which date from the last ice age. This rock was chosen by General Guillaume Henri Dufour as the reference point for surveying in Switzerland. The second main river of Geneva is the Arve, which flows into the Rhône just west of the city centre. Mont Blanc