Gerra (Gambarogno) is a former municipality in the district of Locarno in the canton of Ticino in Switzerland.

Of the three inhabited settlement cores, Scimiana has remained nearly unchanged.

The network of narrow streets and typical Gambarogno style alleys have been preserved, while most of the wooden balconies are gone and the fishermen's houses have disappeared.

[2] Gerra has an area, as of 1997[update], of 3.14 square kilometers (1.21 sq mi).

The blazon of the municipal coat of arms is Gules a crossbow or and in a chief of the last an eagle displayed sable langued, beaked and membered of the first.

Most of the population (as of 2000[update]) speaks Italian (67.3%), with German being second most common (28.3%) and French being third (1.6%).

[6] The age distribution, as of 2009[update], in Gerra is; 28 children or 9.2% of the population are between 0 and 9 years old and 28 teenagers or 9.2% are between 10 and 19.

[10] About 50.4% of the total households were owner occupied, or in other words did not pay rent (though they may have a mortgage or a rent-to-own agreement).

[7] The historical population is given in the following table:[2] In the 2007 federal election the most popular party was the FDP which received 33.16% of the vote.

In the federal election, a total of 101 votes were cast, and the voter turnout was 42.6%.

[14] In the 2007[update] Gran Consiglio election, there were a total of 224 registered voters in Gerra, of which 121 or 54.0% voted.

[7] There were 106 residents of the village who were employed in some capacity, of which females made up 37.7% of the workforce.

[17] From the 2000 census[update], 176 or 69.3% were Roman Catholic, while 40 or 15.7% belonged to the Swiss Reformed Church.

In the lower secondary school system, students either attend a two-year middle school followed by a two-year pre-apprenticeship or they attend a four-year program to prepare for higher education.

The upper secondary school includes several options, but at the end of the upper secondary program, a student will be prepared to enter a trade or to continue on to a university or college.

In Ticino, vocational students may either attend school while working on their internship or apprenticeship (which takes three or four years) or may attend school followed by an internship or apprenticeship (which takes one year as a full-time student or one and a half to two years as a part-time student).

[20] As of 2000[update], there were 24 students from Gerra who attended schools outside the village.