Datasets:

Nason
/

eoir-database

license: mit
task_categories:
  - tabular-classification
  - tabular-regression
tags:
  - immigration
  - eoir
  - immigration-court
  - foia
  - duckdb
  - legal
  - policy
  - government-data
pretty_name: EOIR Immigration Court Database
size_categories:
  - 100M<n<1B

EOIR Immigration Court Database

A clean, queryable DuckDB database built from the EOIR FOIA data dump -- the most comprehensive public dataset on U.S. immigration court proceedings.

164,633,807 rows across 97 tables covering every immigration court case since the 1970s.

Built with eoir-database.

Quick Start

DuckDB CLI

INSTALL httpfs;
LOAD httpfs;
ATTACH 'https://huggingface.co/datasets/ian-nason/eoir-database/resolve/main/eoir.duckdb' AS eoir (READ_ONLY);

-- Query immediately
SELECT court_name, COUNT(*) as cases
FROM eoir.v_proceedings_full
WHERE CASE_TYPE = 'RMV'
GROUP BY court_name
ORDER BY cases DESC
LIMIT 10;

Python

import duckdb
con = duckdb.connect()
con.sql("INSTALL httpfs; LOAD httpfs;")
con.sql("""
    ATTACH 'https://huggingface.co/datasets/ian-nason/eoir-database/resolve/main/eoir.duckdb'
    AS eoir (READ_ONLY)
""")
con.sql("SELECT * FROM eoir._metadata").show()

DuckDB uses HTTP range requests, so only the pages needed for your query are downloaded.

Tables

Table	Description	Rows
`schedule`	Hearing schedule entries with calendar type and adjournments	45,183,976
`representatives`	Attorney representation records	25,639,802
`charges`	Individual charges per proceeding	18,484,804
`proceedings`	Proceedings: hearings, decisions, judges, charges	16,216,773
`applications`	Applications for relief (asylum, cancellation, etc.)	15,756,896
`cases`	Case-level demographics, custody, dates, attorney info	12,461,924
`custody_history`	Custody status change records	9,777,557
`motions`	Motions filed in proceedings	8,030,259
`juvenile_history`	Juvenile designation records	2,953,170
`lead_rider`	Lead/rider case relationships	2,582,001
`case_identifiers`	Case ID cross-references	2,392,405
`bonds`	Bond hearing records and amounts	1,586,265
`appeals`	Appeals to Board of Immigration Appeals	1,457,288
`appeal2`	Loaded from tblAppeal2.csv	1,195,783
`attorneys`	Attorney registry	403,612
`appeal_fed_courts`	Loaded from tblAppealFedCourts.csv	179,707
`case_priority_history`	Priority code changes	138,004
`three_mbr_referrals`	Loaded from tblThreeMbrReferrals.csv	83,464
`pro_bono`	Pro bono screening records	65,944
`lu_judge_base_city`	Loaded from tblLookupJudgeBaseCity.csv	11,266
`lu_insta`	Loaded from tblLookupINSTA.csv	8,972
`lu_inmate`	Loaded from tblLookupInmate.csv	4,844
`lu_inmate_housing`	Loaded from tblInmateHousing.csv	4,752
`lu_responsible_party`	Loaded from tblResponsibleParty.csv	3,381
`lu_judge`	Immigration judge codes	1,455
`lu_hearing_location`	Hearing location codes	1,241
`lu_insloc`	Loaded from tblLookupINSLOC.csv	1,020
`lu_bia`	Loaded from tblLookupBIA.csv	867
`lu_insaddress`	Loaded from tblLookUpINSAddress.csv	754
`lu_language`	Language codes	738
`lu_holidays`	Loaded from tblLookupHolidays.csv	613
`lu_notice`	Loaded from tblLookupNOTICE.csv	598
`lu_district_location`	Loaded from tblLookupDistrictLocation.csv	288
`lu_office_location`	Loaded from tblLookupOfficeLocation.csv	264
`lu_alien_nat`	Loaded from tblLookupAlienNat.csv	256
`lu_country`	Loaded from tblLookupCountry.csv	254
`lu_charges`	Charge codes and descriptions	252
`lu_nationality`	Nationality/country codes	251
`lu_appeal_issues`	Loaded from tblLookupAppealIssues.csv	246
`lu_biacluster`	Loaded from tblLookup_BIACluster.csv	244
`lu_court_decision`	Court decision codes (by case type)	217
`lu_bar_code_type`	Loaded from tblBarCodeType.csv	141
`lu_adjournment`	Adjournment reason codes	122
`lu_case_identifier`	Loaded from tblLookUpCaseIdentifier.csv	110
`lu_base_city`	Immigration court locations	97
`lu_in_tr_pr`	Loaded from tblLookupInTrPr.csv	94
`lu_motion_type`	Motion type codes	72
`lu_insoffice`	Loaded from tblINSoffice.csv	72
`lu_state`	U.S. state codes	59
`lu_bia_decision`	BIA decision codes	53
`lu_special_issue`	Loaded from tblLookupSpecialIssue.csv	43
`lu_application`	Application type codes	40
`lu_teams`	Loaded from tblTeams.csv	37
`lu_hold_reason`	Loaded from tblLookupHoldReason.csv	37
`lu_schedule_type`	Schedule type codes	36
`lu_callup_reasons`	Loaded from tblLookupCallup_Reasons.csv	30
`lu_cal_type`	Calendar type codes	29
`lu_dddecision_types`	Loaded from tblLookUpDDDecisionTypes.csv	23
`lu_panels`	Loaded from tblPanels.csv	20
`lu_appeal_type`	Loaded from tbllookupAppealType.csv	19
`lu_board_motions`	Loaded from tblLookupBoardMotions.csv	16
`lu_priority`	Loaded from tblLookupPriority.csv	15
`lu_br_deduct_codes`	Loaded from tbl_br_DeductCodes.csv	15
`lu_app_decision`	Application decision codes	14
`lu_intr_pr_lang`	Loaded from tblLookupIntrPrLang.csv	14
`lu_transcribers`	Loaded from tblLookupTranscribers.csv	14
`lu_case_type`	Case type codes	13
`lu_dec_code`	Loaded from tblDecCode.csv	12
`lu_filing_method_party`	Loaded from tblLookupFiling_Method_Party.csv	10
`lu_filed_by`	Loaded from tblLookupFiledBy.csv	9
`lu_comment_type_board`	Loaded from tblLookupCommentTypeBoard.csv	9
`lu_contact_change`	Loaded from tblLookupContactChange.csv	9
`lu_torture_conv_id`	Loaded from tblTortureConvID.csv	8
`lu_ins_clock_entry_status`	Loaded from tblLookup_INS_Clock_Entry_Status.csv	8
`lu_3_mbr_referred_reason`	Loaded from tblLookup3MbrReferredReason.csv	7
`lu_category`	Loaded from tbllookup_Category.csv	7
`lu_vote`	Loaded from tblLookupVote.csv	7
`lu_juvenile`	Loaded from tblLookup_Juvenile.csv	6
`lu_service_method`	Loaded from tblLookupService_Method.csv	6
`lu_case_priority`	Loaded from tblLookup_CasePriority.csv	6
`lu_fee_status`	Loaded from tblLookupFeeStatus.csv	5
`lu_consulted_with`	Loaded from tblLookupConsultedWith.csv	5
`lu_biadecision_type`	Loaded from tblLookupBIADecisionType.csv	5
`lu_in_tr_pr_agenda`	Loaded from tblLookupInTrPrAgenda.csv	5
`lu_fed_court_decision`	Loaded from tblLookupFedCourtDecision.csv	4
`lu_oaresponse`	Loaded from tblLookupOAResponse.csv	4
`lu_components`	Loaded from tblLookupComponents.csv	4
`lu_filing_method`	Loaded from tblLookupFiling_Method.csv	4
`lu_final_disposition`	Loaded from tblLookupFinalDisposition.csv	4
`lu_claimed_issue`	Loaded from tblLookupClaimedIssue.csv	4
`lu_custody_status`	Custody status codes	3
`lu_fee_type`	Loaded from tblLookupFeeType.csv	3
`lu_allegation_stmt`	Loaded from tblLookUpAllegationStmt.csv	3
`lu_region`	Loaded from tblLookupRegion.csv	2
`lu_sex`	Loaded from tblLookupSex.csv	2
`lu_in_tr_pr_lang_group`	Loaded from tblLookupInTrPrLangGroup.csv	2
`lu_fed_court_remand_to`	Loaded from tblLookupFedCourtRemandTo.csv	2

Data Source

EOIR FOIA Library -- updated monthly by the Executive Office for Immigration Review (U.S. Department of Justice). This is public domain U.S. government data.

License

Database build code: MIT. Underlying data: public domain (U.S. government work).

GitHub

Full source code, build instructions, and example analyses: github.com/ian-nason/eoir-database