8.5M full-text U.S. court opinions split into 38 decade-by-decade CSV files, from the 1650s onward. Case names, filing dates, citations, and cleaned opinion text in every record.
This dataset contains 8,507,968 full-text U.S. court opinion records organized into 38 decade-based CSV files, from the 1650s to 26Q1. Each file contains records whose filing date falls within that decade, making it easy to work with a specific era, sample across time periods, or process the corpus incrementally — load the 1990s for a focused study, or stream all 38 files for the complete 86-billion-character collection. Opinion texts average roughly 10,000 characters (about 1,600 words) per record.
Each record includes:
case_name — the name of the case
cleaned_text — full narrative opinion text, cleaned and whitespace-normalized
citations — the case's citations as reported
date_filed — filing date
citations_norm — normalized citation string for matching and deduplication
Files are UTF-8, RFC-4180 CSVs with header rows (e.g. cases_1990s_no_empty_cases.csv), exported directly from PostgreSQL for reliable import into any database or data pipeline. Every record contains non-empty opinion text — empty and whitespace-only entries are excluded. Text fields preserve original paragraph structure, and the identical schema across all 38 files means one import routine handles the entire collection.
Highlights
8.5 million full-text U.S. court opinion records split into 38 decade files spanning the 1650s to 26Q1 — study a single era or process the full 86-billion-character corpus file by file.
Identical schema in every file: case name, filing date, citations, normalized citation string, and complete cleaned opinion text. Empty and whitespace-only records excluded.
UTF-8, RFC-4180 CSVs with header rows, exported directly from PostgreSQL — decade-sized files are far easier to load, sample, and parallelize than a single 81 GB download.
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You buy this dataset through a single Product Access dimension on a contract basis. One subscription grants access to the full corpus of 8.5 million court opinion records, split across 38 decade-by-decade CSV files. Pricing does not scale by file, record count, or data volume. You pick the contract term offered, and the charge appears on your regular AWS bill. The subscription includes all historical and future revisions. Standard AWS infrastructure charges for storage and transfer apply separately when you export the files to your own S3 bucket.
Top-of-mind questions for buyers
What does one unit of Product Access grant me?
One unit grants access to the entire corpus: all 8,507,968 court opinion records, delivered as 38 decade-by-decade CSV files from the 1650s onward. Each file holds opinions whose filing date falls in that decade. Every file shares the same five-column schema, so one import routine handles all 38.
Does my cost change if I only load certain decades or add more data?
No. Access is granted as one unit covering the complete corpus. Pricing does not scale by file count, record count, or data volume. Loading one decade or all 38 costs the same. The subscription also includes all historical and future revisions at no extra charge.
What is delivered in each record, and what format is used?
Each record carries five columns: case name, filing date, citations, normalized citations, and cleaned full opinion text. Files are UTF-8, RFC-4180 CSV with header rows, exported directly from a relational database. Empty and whitespace-only records are excluded, so every row has non-empty opinion text.
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Because this product is downloadable data that cannot be returned once accessed, approved refunds are limited to 50% of the purchase price. Requests must be sent to support@maconapps.com within 14 days of purchase and include your AWS account ID and reason; refunds are not available after 14 days. If the dataset is materially defective (corrupted, inaccessible, or materially different from the listing), we will remedy it or issue a full refund.
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8.5M full-text U.S. court opinions from 1658 onward to 26Q1. Case names, filing dates, citations, and ~86B characters of cleaned opinion text. One record per row in ready-to-import CSV format.
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