README.md

---
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](https://www.justice.gov/eoir/foia-library-0) -- 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](https://github.com/ian-nason/eoir-database).

## Quick Start

### DuckDB CLI

```sql
INSTALL httpfs;
LOAD httpfs;
ATTACH 'https://huggingface.co/datasets/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

```python
import duckdb
con = duckdb.connect()
con.sql("INSTALL httpfs; LOAD httpfs;")
con.sql("""
    ATTACH 'https://huggingface.co/datasets/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](https://www.justice.gov/eoir/foia-library-0) -- 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](https://github.com/ian-nason/eoir-database)