
Key takeaways
- Vacancy duration has a published 2024 allocation rate.
- Allocation is not the same as sampling error.
- The table and quality note belong in the research record.
Source record
2 cited sources
Last verified
2026-08-10
In this article
Quick Overview
The Census Bureau's 2024 ACS item-allocation table reports a 22.2 percent allocation rate for vacancy duration. An allocation means the bureau used an imputed response for an item. It is a quality signal that should travel with the estimate.
Portfolio application
Use vacancy follow-up signals for property workflow. Use ACS vacancy duration only as market context, with table, year, geography, and allocation note stored beside it.
Common Mistakes
Do not read an allocated value as a direct observation. Do not call the allocation rate a margin of error.
Method and limits
The Census ACS item allocation rates table provides the rate and quality context.
Common Questions Answered
Should an operator remove allocated records?
Not automatically. Keep the published estimate, document the limitation, and use a more specific source when needed.
Is vacancy duration a leasing clock?
No. A market estimate and a property's days vacant answer different questions.
Ready to improve data controls?
Use portfolio reporting support to preserve source and limitation notes.