| 1 | Cambodia Adventist International School | American | $1,678-$1,970 | +31% | $2,384 |
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| 2 | Western International School | American | $2,355-$2,748 | +41% | $3,602 |
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| 3 | Brighton International School | British | $3,242-$3,456 | +23% | $4,119 |
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| 4 | Grand Mount International School | British | $2,452-$3,924 | +33% | $4,238 |
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| 5 | GloLink International School Phnom Penh | American | $3,140-$3,827 | +22% | $4,254 |
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| 6 | Eco International School | — | $3,862-$4,351 | +19% | $4,877 |
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| 7 | Zion International School of Phnom Penh | — | $3,600-$4,254 | +27% | $4,977 |
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| 8 | KCE International School | — | $3,287-$4,857 | +26% | $5,122 |
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| 9 | New Gateway International School | — | $3,214-$5,831 | +23% | $5,573 |
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| 10 | Golden Bridge International School of Phnom Penh | Australian | $3,901-$5,305 | +23% | $5,653 |
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| 11 | Golden Gate American School | IB, American | $3,220-$6,049 | +23% | $5,685 |
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| 12 | American Pacific International School | American | $3,010-$6,403 | +22% | $5,757 |
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| 13 | Home of English International School | American | $4,626-$4,877 | +22% | $5,802 |
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| 14 | TIA International School of Phnom Penh | British, American | $4,108-$5,673 | +21% | $5,941 |
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| 15 | Blueline International School | — | $4,536-$5,500 | +22% | $6,118 |
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| 16 | Cambridge International School of Cambodia | Australian | $3,846-$6,397 | +21% | $6,222 |
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| 17 | Asian Hope International School | British | $4,498-$5,978 | +21% | $6,338 |
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| 18 | Gecko Garden School | — | $5,581-$5,581 | +14% | $6,381 |
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| 19 | CIA First International School | American | $3,274-$7,389 | +28% | $6,832 |
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| 20 | NIRA International School | British, French | $4,725-$6,868 | +26% | $7,297 |
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| 21 | East-West International School | British | $4,827-$7,594 | +18% | $7,311 |
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| 22 | Footprints International School | British | $4,821-$6,819 | +26% | $7,320 |
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| 23 | Lycée Français René Descartes | French | $5,909-$7,710 | +12% | $7,610 |
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| 24 | Southbridge International School Cambodia | British | $4,743-$9,485 | +15% | $8,214 |
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| 25 | Invictus International School Phnom Penh | British | $5,318-$10,023 | +14% | $8,771 |
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| 26 | Paragon International School | British | $5,379-$10,460 | +19% | $9,420 |
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| 27 | Logos International School | American | $7,951-$11,804 | +11% | $10,978 |
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| 28 | French International School | British, French | $6,912-$13,482 | +15% | $11,697 |
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| 29 | HOPE International School | IB, British | $7,751-$16,288 | +7% | $12,820 |
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| 30 | iCAN British International School | British | $12,225-$12,699 | +12% | $13,962 |
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| 31 | AUPP Liger Leadership Academy | — | $14,805-$14,805 | +10% | $16,305 |
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| 32 | Canadian International School of Phnom Penh | IB, Canadian | $7,751-$24,775 | +10% | $17,913 |
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| 33 | Bromsgrove International School Cambodia | British | $10,209-$24,307 | +10% | $18,908 |
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| 34 | Australian International School Phnom Penh | IB, Australian | $9,611-$27,701 | +6% | $19,866 |
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| 35 | International School of Phnom Penh | IB | $9,378-$28,977 | +7% | $20,498 |
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| 36 | Northbridge International School Cambodia | IB | $12,484-$31,156 | +6% | $23,140 |
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