Documented data source

IOM DTM

IDP and returnee estimates per Syrian governorate and round (IOM DTM, via HDX).

Integrated datasets

IOM Displacement Tracking Matrix via HDX Checked on schedule

IOM DTM Syria displacement and return estimates by governorate

IOM DTM baseline-round estimates of internally displaced persons and IDP returnees per Syrian governorate and nationally, from February 2025. Field assessment estimates, not registration counts.

License: CC BY 4.0
Last refresh: 2026-07-12
Time coverage: 2025-03-01–2026-04-30
Data type: Field estimate

About this source

Owner: International Organization for Migration (IOM)
Country scope: global
Update frequency: monthly

Official source website →

What can this source tell us—and what can it not?

These are field estimates from IOM Displacement Tracking Matrix (DTM) baseline rounds, activated in Syria from February 2025 after the December 2024 shift — not a registration of individuals. They count internally displaced persons and returnees per governorate per round, and figures are revised round to round. They differ methodologically from UNHCR registration counts, so the two should not be summed or directly compared.

Official methodology