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National Deaf Education Data Index

Where Deaf and hard-of-hearing students are educated, what it costs, and who is responsible, state by state from primary sources.

A fifty-one jurisdiction reference on Deaf education in the United States: how many Deaf and hard-of-hearing students each state identifies and where they are placed, what public money reaches their education and through which instruments, and the statutes, agencies, and boards that decide who serves a Deaf child. Every figure carries a year and a source. Every gap is stated rather than filled. The Index documents publication from primary sources and does not evaluate any program.

51jurisdictions
3dimensions
6coverage codes
2024baseline

Recent Insights

What the Index publishes about its own work and the field it reports on.

Read more Deaf Education- NDEDI Insights

Why the Index exists

Nobody could answer the first question

How many Deaf children does your state educate? Where are they placed? What money follows them, and who runs the school that serves them? In most states no single public source can answer even one of those questions, and in some states no public source can answer any of them.

Federal reporting aggregates hearing-related categories in ways that dissolve the distinctions that matter, state education agencies publish to inconsistent standards or not at all, statutes have never been read side by side, and hundreds of district websites, some of which no longer belong to the districts, hold the rest. The Index reads all of it, every statute, every data file, every district site in frame, and writes down exactly what is there, exactly what is missing, and exactly where it came from.

Two formulations appear in the same words in every state file, because they are the boundary of what the Index claims.

NONE FOUND is a statement about publication, not about service delivery.

Obligations under IDEA are not evidence of a program.

What we collect

Three dimensions, one standard

Every state file is built to the same governance corpus, so a figure in one state means the same thing in another. Three dimensions anchor the collection, and each carries a distinct evidentiary burden.

Enrollment and placement

How many Deaf and hard-of-hearing students a state identifies, where the count is taken and on what date, whether it is published at the district level or only in aggregate, what suppression rules apply, and whether state school populations sit inside or outside the statewide figure.

Fiscal allocations

What public money reaches Deaf education and through which instruments: named appropriation lines, formula funding, federal flow-through under IDEA, categorical and low-incidence grants, tuition and transfer mechanisms, and the voucher and education savings account market, including instruments that have been repealed.

Institutional frameworks

Who is responsible for a Deaf student's education and under what law: the operating authority of each state school with its statute quoted, the coordinating body, the eligibility rule and any audiometric threshold, interpreter standards, language acquisition legislation, the early intervention lead agency, and the regional layer.

Where a state publishes nothing, the file says so, because the absence of a number is itself a finding. Nothing is estimated, modeled, or inferred; every figure carries a year and a source, conflicts are recorded rather than resolved silently, and interpretation is marked as interpretation.

How a state file is built
What the record shows

Findings that only surface when someone reads the whole record

These are findings from released state files, stated generically here. The state file carries the state, the citation, and the evidence behind each one.

A flagship Deaf school that answers to the welfare department

In one state the school for the Deaf, one of the oldest in the country, is operated by the human services agency and not the education agency. Its admission rule sits in the welfare title of the administrative code, and every education funding statute flows around it.

A funding formula that never says the word Deaf

One state's entire school funding statute, over 285,000 characters of law, contains no occurrence of Deaf, hearing, or audiology. Verified by full-text search and recorded with the search itself.

States that publish no count at all

Some state education agencies publish no child count by disability category anywhere. Families, researchers, and legislators in those states cannot answer the first question about Deaf education from any state source.

District domains that no longer belong to districts

District web audits keep finding directory-listed domains that have lapsed and now serve gambling content or ad farms, while the state directory keeps listing them. The Index codes them NOT VERIFIABLE and says why.

The residential channel is disproportionately a Deaf channel

In one state, children in the hearing impairment category were about one percent of the special education count but over twenty-one percent of residential facility placements, a ratio visible only when the environments data is read by category.

A scholarship program that never counted disability

A nine-figure tax-credit scholarship program ran for six years and was repealed without ever reporting participation by disability category. Whether Deaf students used it is now unknowable, and the Index records that as a finding.

How a state file is built

From primary sources to a released file

The full process →
  1. Audit the whole frame

    Every school district, charter authorizer, cooperative, and state unit in the state's frame is audited and coded; in one state that meant 923 units. Where an exhaustive frame is not achievable, a stated and reproducible sampling frame is published in its place, and everything outside it is coded OUT OF FRAME.

  2. Verify, then notice

    Statutes are quoted from the served text with retrieval dates; beliefs carried in are verified or recorded as dissolved; scripted checks must all pass. The state-level bodies the file names receive the draft with ten business days to point to any published figure or document it missed.

  3. Release, deposit, re-audit

    A person runs the release checklist; the state page goes live at a permanent versioned URL and the release is deposited with a DOI. When the next data cycle publishes, the file is re-audited and every figure and code that changed is stated with its direction.

Baseline 2024

The year every later year is measured against

The Index is longitudinal. Baseline 2024 is the first version of each state file that carries all three dimensions with the figures published through the 2024 reporting cycle. When the fifty-one files carry that label, they are deposited together with a single citation, and every later cycle is read against them: what changed, in which direction, and in whose published record. The change between cycles is the finding the Index exists to produce over time.

The reference-year mapping, which states in the same words what "2024" means for each dimension, is fixed once and repeated in every baseline file so that the label means the same thing in every state.

Where the work stands

State files, notice windows, and what is next

The register is the live state of every jurisdiction. Nothing appears here that has not passed the release checklist, and every state-level body named in a file is noticed before release with a ten business day correction window.

As of October 9, 2026

  • 51Jurisdictions in frame
  • 0Released
  • 51Not listed

No state file has been released on this site yet.

Open notice windows

No notice window is open.

Next scheduled work

  • June 1, 2027: Rollout window opens, All jurisdictions
  • June 30, 2027: Rollout window closes, All jurisdictions

Roadmap: 12 jurisdictions have October 2026 as their target month, a plan that moves with the work.

The register The calendar

No state file has been released yet.

Access

Free to read; the file is licensed

A licensed file and the free summary carry the same figures. The tier changes what a reader can download, never what the Index says. Fees are fixed, issued on request, and not negotiated by entity size.

Access tiers
TierWhoWhat
Public readerAnyoneThe state page: summary figures, the coverage tallies, the state indicators with year and source, the fiscal totals by channel with citation, the method, the register, the DOI, and the correction route
State file licenseAgencies, schools for the Deaf, universities, researchers, press; a reduced-rate product for Deaf-led and disability organizationsThe full narrative, workbook, and verification trail for one state, with that year's update
State PartnerThe state's education agency, commission, or school for the DeafThe state file license plus the commissioned annual update, a briefing, national comparison access, and a named acknowledgment with no editorial input
National licenseInstitutions and commercial users, as two defined productsAll fifty-one files, the national dataset at unit level, exports, the API, and re-audit alerts

Licenses and partnership

Terms, the release package, the deposit, and the State Partner share.

Data and licensesState Partners →
Publisher

Published by Novara Consulting Group LLC

The Index is one of three documentary instruments Novara Consulting Group LLC publishes under one method, beside the Accessibility Governance Record, which documents what public institutions publish about how they govern accessibility, and the SLAT Index, which evaluates sign language AI and AI interpreting technology. Every jurisdiction is documented whether or not a body in it is a client, a partner, a funder, or a critic of the publisher; no payment alters a figure, a code, or a frame decision; and every file carries a disclosure block. The independence rules, the funding page, and the method advisory group are on the About pages.