All compulsory schools in Tjörn — 9 schools

All compulsory schools in Tjörn

Results and grades

School results in compulsory schools in Tjörn municipality (2025).

Merit score yr 9 (municipal average, 16 subjects)

224.3 (national avg: 228.5)

Pass in all subjects, yr 9

77.6 %

Pass in mathematics

90.9 %

Pupil satisfaction yr 5

71.5 %

Pupil satisfaction yr 8

54.5 %

Parents with post-secondary education

66.9 %

Source: Kolada — municipal and regional database.

Teachers and staff

Pupil-teacher ratio and teacher certification in compulsory schools in Tjörn municipality (2025).

Certified teachers (compulsory school)

73.7 % (national avg: 73.3 %)

Certification municipal / independent

74.3 % / 52.2 %

Pupils per teacher

10.6

Source: Kolada — municipal and regional database.

Staff stability

Stability of the teaching workforce in Tjörn municipality, measured as the trend in the share of certified teachers over time.

Certified teachers (2025)

73.7 % (national avg: 73.3 %)

Stability indicator (2020–2025)

→ Stable (-0.4 pp)

National trend (2020–2025)

↑ Improving (+2.2 pp)

Source: Kolada — municipal and regional database.

Pupils and operators

Pupil counts and distribution between municipal and independent schools (2025).

Number of compulsory-school pupils

1,567

Municipal / independent share

96.8 % / 3.2 %

Source: Kolada.

Costs — compulsory school

Cost per pupil in compulsory school (2025). Includes a breakdown for municipal schools. All amounts are calendar-year.

Total cost per pupil: 175,456 SEK(national avg: 144,179 SEK)

Municipal schools: 165,850 SEK/pupil

Source: Kolada (N15006, N15008, N15009–N15014).

Student health and special support

Student-health resources, staffing, accessibility and special support in Tjörn municipality.

Student health, compulsory school

6,208 SEK/pupil (national avg: 5,260 SEK)

Support from student-health staff

65.4 %

Preventive work (staff)

62.7 %

Easy to get help, yr 5

62.4 %

Easy to get help, yr 8

60 %

Safety at school

77.2 %

Study calm

38.3 %

Source: Kolada. Survey data from Skolinspektionen.

Mother tongue and multilingualism

Mother-tongue tuition and multilingualism in Tjörn municipality (2025).

Mother tongue other than Swedish

12.3 %

Participates in mother-tongue tuition

3.1 %

Studies Swedish as a second language

7.8 %

Pass in mother-tongue tuition, yr 9

100 %

Pass in Swedish as a 2nd language, yr 9

84.6 %

Newly arrived last 3 yrs (comp. school)

2 %

Source: Skolverket and Kolada.

SALSA — merit score vs preconditions

SALSA compares actual school results with model-predicted values based on pupil composition. Positive deviation = better result than expected. School year 2024/25. SALSA measures relative performance — not absolute school quality. The model explains ~53 % of the variation.

Highest merit score in Tjörn

Top 3 schools by merit score yr 9.

School ranking — Tjörn

All 3 compulsory schools with merit data, sorted by merit score yr 9. The SALSA deviation shows whether the school performs above or below expectations given the pupils' backgrounds.

The SALSA deviation shows whether the school performs above or below expectations given the pupils' backgrounds. Positive value (green) = better than expected, negative (red) = worse. Source: Skolverket, 2024/25.

Special compulsory school

Key figures for "anpassad grundskola" (compulsory school for pupils with intellectual disabilities) in Tjörn municipality (2025).

Number of pupils

13

Share of compulsory-school pupils

0.7 %

Cost per pupil

1,096,909 SEK/yr

Teachers per 100 pupils

2.2

Source: Kolada.

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