Yearly editionPublished on October 18, 2026

Children's Tamborrada Statistics 2020Children's Tamborrada 2020

Overview · 2020

Participants4,683Drummers and cantineras registered in 2020

Change vs. previous edition-4.35%4,896 → 4,683 participants

Distinct first names85918.41% diversity

Distinct surnames3,25536.78% diversity

Compound names1262.70% of participants

In 2020, Tamborrada participation was lower than in the prior comparable period. The edition also included names absent from all earlier recorded editions.

Participation

Tamborrada recorded 4683 participants in the target year. Participation decreased by 4.35% compared with the prior comparable edition.

Total participants

Drummers and cantineras registered in total.

Participants: 4,683

Participants growth

How much participation grew or shrank, as a percentage, compared with the previous edition.

Growth rate: -4.35%

Names

Ane leads the given-name ranking, followed by Nora, with Ander, Iker and Jon tied behind them. The leading names therefore combine a clear first place with a closely grouped set of next-ranked entries. Naming renewal is also visible through debuts such as Dalila, Estibalitz and Gabrielle, all absent from the prior records.

Rankings5

Most frequent names

The most repeated names and how many times each one appears.

1
Ane
113
2
Nora
93
3
Ander
87
4
Iker
87
5
Jon
87
6
Nahia
74
7
Lucia
72
8
Paula
68
9
Unai
64
10
Maddi
60

Participants with multiple names

Participants with more than one given name, and what share they make up.

Participants with multiple names: 126

Share of resolved participants: 2.7%

Average name length

Average number of letters in the registered names.

Average characters: 5

Surnames

Garcia leads the surname ranking with 179 occurrences, followed by Gonzalez with 150 and Rodriguez with 127. The current surname mix includes debuts such as Anderson, Brandan, and Lebrero, each recorded three times after being absent from earlier editions. By contrast, Ufano and Ugartemendia, previously recorded four times each, are not recorded now, while Arrue, Beitia, and Brou are also absent from the relevant comparison.

Rankings4

Most frequent surnames

The most repeated surnames and how many times each one appears.

1
Garcia
179
2
Gonzalez
150
3
Rodriguez
127
4
Fernandez
117
5
Perez
116
6
Martinez
103
7
Lopez
100
8
Sanchez
89
9
Martin
64
10
Hernandez
59

Average surname length

Average number of letters in the registered surnames.

Average characters: 6.94

Diversity

Given names show lower diversity, with 859 distinct names, a diversity percentage of 18.41%, and Shannon entropy of 5.69. Surnames are more diverse, with 3255 distinct surnames, a diversity percentage of 36.78%, and Shannon entropy of 7.33; concentration is correspondingly lower for surnames, with a Herfindahl index of 0.0024 versus 0.0067 for given names.

Rankings1

Most common name and surname pairs

The name and surname pairs that repeat most among participants, regardless of the rest of the name.

1
Ane Garcia
7
2
Lucia Garcia
7
3
Ander Fernandez
5
4
Iker Garcia
5
5
Jon Martinez
5
6
Markel Gonzalez
5
7
Naroa Garcia
5
8
Aitor Perez
4
9
Alba Rodriguez
4
10
Ander Garcia
4

Names diversity

How much variety there is in names: the more distinct names, the more diversity.

Diversity: 18.41%

Distinct count: 859
Observations: 4,665
Shannon entropy: 5.69

Surnames diversity

How much variety there is in surnames: the more distinct surnames, the more diversity.

Diversity: 36.78%

Distinct count: 3,255
Observations: 8,849
Shannon entropy: 7.33

Name concentration

How concentrated participants are in a few names. The more concentration, the less diversity.

Most frequent: ane

Leader appearances: 113
Leader share: 2.42%
Share of the top positions: 10.01%
Concentration index: 0.0067

Surname concentration

How concentrated participants are in a few surnames. The more concentration, the less diversity.

Most frequent: garcia

Leader appearances: 179
Leader share: 2.02%
Share of the top positions: 7.79%
Concentration index: 0.0024

Schools

The school leaderboard is headed by Amara Berri Ikastetxea. Average school size is 117.08 participants. The same school ranks first for both given-name diversity and surname diversity, indicating the broadest measured mix in each category.

Rankings4

Schools with the most participants

The schools with the most participants, and how many each one brings.

1
Amara Berri Ikastetxea
246
2
La Salle
222
3
Santo Tomas Lizeoa
216
4
Aldapeta Maria Ikastetxea
202
5
Ekintza Ikastola
192
6
Sagrado Corazon Mundaiz
190
7
Jesuitas (San Ignacio de Loyola)
183
8
San Patricio
151
9
Zurriola Ikastola
135
10
Euskal Billera
130

Tables2

Most common name by school

The name that appears most in each school, and how many times it appears.

Most common name by school
School	Most common name	Times
Aldapeta Maria Ikastetxea	Lucia	7
Salesianos Donostia	Alex	3
Karmelo	David	3
Santo Tomas Lizeoa	Iker	8
Ikasbide Ikastola	Markel	7
San Jose Ikastetxea	Ainhoa	4
La Salle	Ane	10
La Anunciata Ikastetxea	Naroa	4
Sagrado Corazon Mundaiz	Lucia	7
Jesuitinas	Ane	4

Most common surname by school

The surname that appears most in each school, and how many times it appears.

Most common surname by school
School	Most common surname	Times
Aldapeta Maria Ikastetxea	Fernandez	13
Salesianos Donostia	Garcia	4
Karmelo	Perez	9
Santo Tomas Lizeoa	Garcia	8
Ikasbide Ikastola	Sanchez	5
San Jose Ikastetxea	Garcia	5
La Salle	Fernandez	16
La Anunciata Ikastetxea	Perez	9
Sagrado Corazon Mundaiz	Rodriguez	10
Jesuitinas	Azurza	3

Average school size

Average number of participants per school.

Participants per school: 117.1

Renewal

School renewal is accompanied by a recorded absence: Claret Ikastola (Mariaren Bihotza) was present in the prior observed edition but is not recorded in the current one. This indicates turnover in the available participation records, not permanent closure or disappearance.

Rankings1

Schools that disappear

Schools that were in the previous edition and no longer appear in this one.

1
Claret Ikastola (Mariaren Bihotza)
108

New versus veteran schools

How many new schools there are for each veteran school.

New schools: 0

Veteran schools: 40
Intermediate schools: 0
Schools in total: 40
New per veteran: 0

Tamborrada recorded 4683 participants in 2020, a 4.35% decrease from the prior comparable period. The average school size was 117.08 participants, indicating the event’s participation was distributed across schools of substantial average scale.