It includes the settlements of Boscioredo, Cugnasco, Bosco, Massarescio, Medoscio, Moncucco, Pianrestello and Sciarana.

[5] Today's mountain pastures of Ditto and Curogna are the oldest settlements of the municipality.

The present village developed mainly due to the herders who brought their cattle down into the Magadino valley for the winter.

However, the Chapel of the Beata Vergine delle Grazie continued to serve for the inhabitants of the plain.

Both the chapel of San Martino in Ditto and the SS Cristoforo e Anna in Curogna date from the 14th and 15th Century and contains frescoes from various periods.

The exclaves were assigned to Gerra in 1920, when the scattered landholdings of Locarno, Minusio and Mergoscia in the Terricciole plains were separated from the cities.

Due to limited agricultural land, portions of the population has emigrated since the 17th Century.

In the late 20th and early 21st Centuries the population rose due to the development of Gerra Piano to an important local center.

[8] The age distribution, as of 2009[update], in Cugnasco-Gerra is; 341 children or 11.9% of the population are between 0 and 9 years old and 322 teenagers or 11.2% are between 10 and 19.

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 professional program lasts three years and prepares a student for a job in engineering, nursing, computer science, business, tourism and similar fields.

[10] In 2014 the crime rate, of the over 200 crimes listed in the Swiss Criminal Code (running from murder, robbery and assault to accepting bribes and election fraud), in Cugnasco-Gerra was 65.9 per thousand residents, slightly higher than the national average (64.6 per thousand).

The rate of violations of immigration, visa and work permit laws was 5.9 per thousand residents.

Anna e Cristoforo a Curogna and the Oratory of S. Martino a Ditto are listed as Swiss heritage site of national significance.