New Method Interval ADP Offers Timely, Accurate ICE Detention Population Data
A new method, Interval Average Daily Population (Interval ADP), has been introduced to calculate recent detained population numbers at U.S. Immigration and Customs Enforcement (ICE) detention facilities. This method is believed to be more accurate and timely than ICE's biweekly detention spreadsheet. The latest facility-level population estimates for April 14 to April 28 are now available, including a comprehensive table and graphs highlighting discrepancies and new facilities.
The Interval ADP method is useful for understanding the detention system's effects on immigration enforcement. It can help focus attention on facilities with the largest discrepancies between ICE's Reported ADP and Interval ADP. Five new detention centers appeared in ICE's data for the first time, indicating the agency's active expansion to detain more immigrants. The comprehensive table includes every detention center ICE is currently using, showing name, location, date, ICE's Reported ADP, Interval ADP estimate, and the difference between the two. However, the five newly added ICE facilities are not explicitly named or located in the provided search results. The Interval ADP for some facilities stays close to the fiscal-year average, while others show significant deviations or lower recent population numbers compared to their year-to-date averages. The data can be downloaded directly from each Datawrapper table or chart, and a public GitHub repository is being developed for all data, code, and explanatory materials.
The new Interval ADP method provides a more accurate and timely way to track recent detained population numbers at ICE facilities. It can be useful for news reporting, policy papers, and other public interest work where recency and accuracy matter. The latest data, including a comprehensive table and graphs, is now available for download and analysis.
