Best compulsory schools in Tjörn
Compare the 9 compulsory schools in Tjörn municipality ranked by Skolkoll score. Average merit score 228 points (0.4 points above national average) (based on 3 schools with reported merit data). Data from Skolverket.
Top 9 compulsory schools in Tjörn
| # | School | Skolkoll score | Merit score yr 9 | SALSA deviation | Certified teachers | Pupils | Type | Why it ranks here |
|---|---|---|---|---|---|---|---|---|
| 1 | Myggenäs skola | Skolkoll score 64 out of 100. Composite index. | – | – | 87 % | 170 | Municipal | Skolkoll score 64.0/100 · 87% certified teachers · 3 of 5 dimensions use school-specific data |
| 2 | Kållekärr skola | Skolkoll score 58 out of 100. Composite index. | – | – | 82 % | 180 | Municipal | Skolkoll score 58.0/100 · 82% certified teachers · 3 of 5 dimensions use school-specific data |
| 3 | Bleketskolan | Skolkoll score 57 out of 100. Composite index. | 246.8 | -7.0 | 64 % | 190 | Municipal | Skolkoll score 57.0/100 · merit score 246.8 · 64% certified teachers · 4 of 5 dimensions use school-specific data |
| 3 | Fridas Hage | Skolkoll score 57 out of 100. Composite index. | – | – | 79 % | 170 | Municipal | Skolkoll score 57.0/100 · 79% certified teachers · 3 of 5 dimensions use school-specific data |
| 5 | Häggvallskolan Väst | Skolkoll score 52 out of 100. Composite index. | 210.2 | – | 78 % | 200 | Municipal | Skolkoll score 52.0/100 · merit score 210.2 · 78% certified teachers · 4 of 5 dimensions use school-specific data |
| 5 | Rönnäng skola | Skolkoll score 52 out of 100. Composite index. | – | – | 78 % | 200 | Municipal | Skolkoll score 52.0/100 · 78% certified teachers · 3 of 5 dimensions use school-specific data |
| 7 | Häggvallskolan Öst | Skolkoll score 47 out of 100. Composite index. | 227.1 | +5.0 | 66 % | 190 | Municipal | Skolkoll score 47.0/100 · merit score 227.1 · 66% certified teachers · 4 of 5 dimensions use school-specific data |
| 7 | Tjörns Montessori skola ekonomiskförening | Skolkoll score 47 out of 100. Composite index. Limited confidence. | – | – | 54 % | 20 | Independent | Skolkoll score 47.0/100 · 54% certified teachers · 3 of 5 dimensions use school-specific data |
| 9 | Skärhamns skola | Skolkoll score 46 out of 100. Composite index. | – | – | 68 % | 250 | Municipal | Skolkoll score 46.0/100 · 68% certified teachers · 3 of 5 dimensions use school-specific data |
How we ranked schools
Schools are sorted by Skolkoll score, the same 0-100 composite quality measure shown on individual school pages. The canonical calculation combines results, staff, added value, pupil safety and resources. Missing school-specific dimensions use the neutral value 50 so absence of data does not by itself lower a school.
Data coverage and sorting
9 schools are included. 9 have a displayed Skolkoll score; 0 have no displayed score because the sample or data coverage is too small.
- Filter
- Active compulsory schools in Tjörn that can be included in the Skolkoll score. Year 9 final-grade scores are shown where published data exists.
- Sorting
- Descending by Skolkoll score. Displayed ranks use rounded-score competition ranking so sub-point differences are not overstated.
- Score weights
- Results 30%, staff 25%, value-added/SALSA 20%, safety 15%, resources 10%. Missing school-specific dimensions use the neutral value 50.
- Coverage
- 3 rows have 4-5 real score dimensions, 6 have 2-3, 0 have 1, 0 have 0 or unknown. Average: 3.3 of 5 dimensions.
- Sources
- Skolverket, Swedish Schools Inspectorate, Statistics Sweden, Kolada and SALSA where available. SALSA year: 2024/25.
- Latest data year
- 2025/26
Tjörn vs national average
Compulsory schools in Tjörn have an average merit score of 228 points, which is 0.4 points above the national average (227.6 points).
Source: Skolverket. Merit score refers to average grade points year 9, 2025/26. SALSA deviation refers to 2024/25.