ICE Detention Book-ins at Georgia Facilities

Limitaciones

Calendar years, not federal fiscal years: `year` and `month` come from the stint's book-in date, so figures here will NOT match ICE's own or the Deportation Data Project's published FY totals (federal FY runs October 1 - September 30). Coverage is the release window 2022-10-01 through 2026-08-06: calendar 2022 is October-December only and 2026 stops on 6 August, so both end years are partial and a year-over-year chart dips at both ends. Of the 134,281 Georgia stint rows in the source, 1,597 were booked in BEFORE 2022-10-01 (back to October 2021) and were still open when the FOIA window opened; they are the residue of earlier detention, not a series, and are dropped. 749 rows DDP flags as duplicate book-ins (duplicate_drop_row) are also dropped, leaving 131,935 stints. A STINT IS A BOOK-IN TO ONE FACILITY, NOT A PERSON: someone transferred between facilities has several stints inside one detention stay (a transfer into Stewart from Folkston is a new stint at Stewart), and `transferred` is the most common way a Georgia stint ends. 131,935 Georgia stints are therefore NOT 131,935 people; use ice_detention_stays for person-level questions (how many people were detained, how long a whole detention lasted). GEOGRAPHY IS THE DETENTION FACILITY'S COUNTY, NEVER THE PERSON'S: `county_fips` is the county where the facility sits, as geocoded by DDP from the facility address. Stewart County (Stewart Detention Center), Charlton County (the three Folkston processing centers), Irwin County (Irwin County Detention Center), Fulton County (the Atlanta hold room and U.S. Penitentiary) and Clayton County (Robert A. Deyton) hold ICE detention facilities, and their rows measure DETENTION CAPACITY IN THAT COUNTY, not residents of it - Stewart County has about 5,000 residents and tens of thousands of book-ins. Nothing in the source says where the detained person lived or was arrested. Only about a dozen Georgia counties hold any facility, so most county rows are withheld/empty by design. The Savannah hold room has no county in the source and contributes to state rows only (996 stints; 99.2% of counted stints resolved to a county), so county rows sum to slightly less than the state total. Disclosure control (the platform's own rule; the source has none): county rows are annual totals with every categorical pinned to `all` (`month`, `release_reason`, `arresting_agency_group` and `citizenship_country` are published at state grain only), on a complete 159-county x 5-year grid; any county count below 5 - ZERO INCLUDED - is withheld as NULL, with complementary suppression so a withheld cell cannot be recovered by subtraction, and avg_stint_length_days is withheld wherever its N (num_stints_ended) is. The still-open remainder num_stints - num_stints_ended is deliberately NOT treated as a disclosive complement at county grain (the same decision as ice_detention_stays): it counts people still held at a detention facility on the extraction date, an attribute of the facility population rather than of an identifiable person, and withholding it would blank the ended count for the largest facility counties to hide remainders of one to three. A county NULL therefore means 'fewer than five, possibly none', never a real zero; state rows are complete and a state 0 is a real zero. avg_stint_length_days is the mean length of stints that had ENDED by 2026-08-06 (3.8% of counted stints were still open and carry no length), so the most recent months are biased SHORT - a long stint that began recently is still open and excluded - and `still_detained` rows never carry an average. `demographic` is ICE's own gender determination (`Male` / `Female`), not self-reported; ICE's `Unknown` counts toward `all` only, so male + female is at most `all`. `citizenship_country` names the 22 countries most frequent among Georgia records across the ICE and immigration-court sources; every other country is `other` and an unrecorded country is `unknown`. `arresting_agency_group` is DDP's program-group flag for the arrest that led to the detention: `cbp` means a Border Patrol or port arrest whose subject was then detained in Georgia, `ice` an ICE arrest, `unknown` no recorded program. `release_reason` is ICE's book-out reason collapsed to seven values; `other` pools rare outcomes (voluntary departure, transfer to the U.S. Marshals, court-ordered release, death, escape and similar).