Data · Coverage · Iowa
The complete inventory of Hudson Corpus for Iowa law: 247,103 primary authorities spanning 1839 to this month, counted from the live corpus and connected by citation and cross reference. This page states exactly what is on the shelf, source by source.
Counted August 31, 2026
247,103
primary authorities
187
years of decisions, 1839 to 2026
6
sources of law, statutes to case law
41,231
mapped connections between them
Deep on Iowa, current on the federal courts above it, and honest about the rest.
Iowa
The full stack. Statutes, regulations, session laws, court rules, and state and federal case law.
Eighth Circuit
Federal appellate decisions that bind Iowa's district courts.
Elsewhere
Not in the corpus yet. Coverage is continuously expanding.
Every count on this page is computed from the corpus itself, not estimated. Where a source is still growing, the row says so.
Statutes
The codified statutes of the State of Iowa, structured to the section, with the 2025 and 2026 editions held side by side for year over year comparison.
28,157 sections · 1,870 chapters · 2 editions
28,157
Sections · current through the 2026 edition
Regulations
Every agency rule in force, structured to the rule and tied back to the statutes each rule implements.
17,690 rules · 1,820 chapters · 87 agencies
17,690
Rules · all 87 agencies
Session laws
Session laws as enacted by the 88th through 91st General Assemblies, 2019 to 2026, each act mapped to the Code sections it creates or amends.
16,514 sections · 1,358 enacted chapters · 8 sessions
16,514
Sections · sessions 2019 to 2026
Rules of court
The rules governing practice in Iowa's courts, structured to the rule.
1,193 rules · 70 chapters
1,193
Rules
Decisions since 1839
The decisions of Iowa's appellate courts, from the territorial Supreme Court's first reported opinions forward, with the citation graph and treatment analysis across all of them.
76,796 decisions
76,796
Decisions · 1839 to August 2026
Decisions since 1849
The federal decisions that bind Iowa practice: the Eighth Circuit in full, Iowa's district and bankruptcy courts, and the circuit courts that preceded them.
106,753 decisions
106,753
Decisions · 1849 to June 2026
Expanding
A coverage list tells you what is on the shelf. The corpus also holds how it fits together: which rules implement which statutes, which acts rewrote which sections, and which opinions cite, follow, or undercut which.
22,508
references between Code sections and the administrative rules that implement them
18,723
edges from session laws to the Code sections they create or amend
Every opinion
in the citation graph, with treatment analysis of how later courts received it
How this page counts
Every figure is computed from the corpus itself, as of the date at the top of the page. No survey numbers, no vendor claims.
Statutes, rules, and session laws come from legis.iowa.gov. Decisions come from the public record of the courts. Nothing is paraphrased.
New opinions land continuously and new editions are added on publication. When the counts move, this page restates them with a new as-of date.
If your practice needs a source we do not hold yet, another state, a federal court, an agency's rules, ask for it. Requests steer the ingestion queue.