Adria Signal · official-source comparison
HTZ and DZS: align coverage before comparing totals
Two credible official series can report different totals without an error. Coverage is the key: all registered accommodation is not the same as commercial establishments.
Official-series reconciliation
The 2025 headline difference compares unlike coverage
The total HTZ/eVisitor series includes all registered accommodation, while the DZS series covers commercial accommodation establishments. Use a headline total only with its definition; identify common coverage before making a market comparison.
- HTZ/eVisitor: all registered
- HTZ/eVisitor — solid line 110,132,564
Source: HTZ / eVisitor Period: 2025 Coverage: All registered accommodation Retrieved: 5/23/2026 Status: Final
- DZS: commercial establishments
- DZS — double line 94,820,989
Source: DZS Period: 2025 Coverage: Commercial accommodation establishments in the DZS series Retrieved: 8/23/2026 Status: Final
- Difference between headline series
- Comparison — dashed line 16.1%
Source: HTZ / eVisitor + DZS Period: 2025 Coverage: HTZ/eVisitor all registered compared with DZS commercial establishments Retrieved: 5/23/2026 and 8/23/2026 Status: Final
- HTZ/eVisitor: commercial
- HTZ/eVisitor — solid line 95,749,377
Source: HTZ / eVisitor Period: 2025 Coverage: Commercial accommodation in the HTZ/eVisitor series Retrieved: 5/23/2026 Status: Final
- Difference on common coverage
- Comparison — dashed line 1%
Source: HTZ / eVisitor + DZS Period: 2025 Coverage: Commercial accommodation in both official series Retrieved: 5/23/2026 and 8/23/2026 Status: Final
- HTZ/eVisitor: non-commercial
- HTZ/eVisitor — solid line 10,756,295
Source: HTZ / eVisitor Period: 2025 Coverage: Non-commercial accommodation in the HTZ/eVisitor series Retrieved: 5/23/2026 Status: Final
Common commercial coverage changes the picture
- Finding
- When HTZ/eVisitor is limited to commercial accommodation, the two series describe a much more similar set of tourism activity.
- Evidence
- The aligned display compares commercial HTZ/eVisitor with commercial DZS and reports the remaining difference separately.
- Decision implication
- Use the aligned comparison for commercial market traffic while noting that the definitions are not perfectly identical.
Non-commercial accommodation explains part of the difference
- Finding
- The broader HTZ/eVisitor series includes non-commercial accommodation outside the DZS commercial population.
- Evidence
- That portion is shown separately rather than described as an institutional error or hidden commercial-market change.
- Decision implication
- Choose the broader or commercial indicator by question and do not reuse one total in the other context.
Origin of the annual reconciliation series
Period, coverage definition, and retrieval records come from the six annual metrics displayed on this page.
- The fact that both sources use the term commercial does not remove every difference in their definitions and data processing.
- The reported difference is not an estimate of unreported traffic or a judgement on either institution.
- HTZ/eVisitor and DZS remain separate official sources with their own mandates and methods.
- A broad view of registered accommodation and an aligned commercial comparison answer different questions.