Brand Penetration Rate: is brand-building in personal injury actually working?

Every market report in this industry measures who leads. None measure whether anyone has built the reflex at all. Brand Penetration Rate is the fraction of a market’s injury search demand that is branded — people typing a firm’s name instead of “car accident lawyer near me.” Nationally it is 44.3%. Market by market it ranges from 11% to 69%.

What BPR measures, and what it does not

BPR = branded searches ÷ (branded + generic) of measured injury demand in a market. A market at 70% is one where most people looking for an injury lawyer already have a name in mind. A market at 15% is one where the category is still being shopped generically — the brand reflex has not been built, by anyone.

Branded demand here counts only firms active in the index, excluding merged duplicates and tombstoned terms, so a firm that appears twice under two spellings cannot inflate a market. Generic demand is the standing 42-term layer used across this site (expanded from 17 terms on 8 August 2026). Markets qualify for this study at 1,000+ monthly generic searches and at least three measured firms.

The coverage problem — and why we went looking for the answer

There is an obvious objection to this metric, and it deserves to be met head on rather than buried in a footnote. Every firm we have not yet enumerated in a market has its branded demand missing from the numerator. A market can therefore look like it has no brand reflex when in truth we simply have not finished counting. Sorted by how many firms are measured, the pattern is visible:

Mean BPR rises from the thinnest tier to the middle tiers and then stops: the best-enumerated markets (13+ firms, mean 44.9%) score slightly lower than the 8–12 tier (46.4%). If BPR were simply an artifact of how much we had counted, that relationship would keep climbing. It does not. And the ranges overlap heavily — Cincinnati sits at 22.1% with eleven firms measured, better enumerated than most markets in the index and still near the floor. Coverage explains part of the spread at the thin end. It does not explain Cincinnati.

Testing the whitespace directly

Rather than assume, we ran the discovery pipeline against the lowest-BPR markets — the ones where the coverage objection bites hardest — and asked it to find the brands we were supposedly missing. Discovery reads Google Ads keyword ideas, extracts name-shaped queries, canonicalises them to firm names, then measures each against head terms. A firm must clear a monthly branded-search floor to enter the index.

Twenty-eight firms surfaced across the four markets and none cleared the measurability floor. In the weeks since, the index’s own graduation pipeline kept enumerating those markets — and the results split. Colorado Springs and Rochester rose sharply (15.4% to 43.2% on six added firms; 17.0% to 34.7% on three). For those two the coverage objection was simply correct, and we have marked them reclassified above rather than quietly dropping them. Toledo and Cincinnati stayed near the floor. Cincinnati now carries eleven measured firms — more than most markets in this study — and sits at 22.1% after the 13 August restatement, still in the bottom decile. That is the honest shape of this finding: coverage explains some markets that look like whitespace, and does not explain others.

One detail from the candidate lists is worth more than the totals. The names that surfaced are largely out-of-market advertisers — Isaacs & Isaacs reaching into Toledo and Cincinnati from Louisville, Rutter Mills from Norfolk, regional expanders like Sweet James and Alexander Shunnarah. The local bar in these markets has close to no branded demand; the trickle that exists mostly belongs to firms headquartered elsewhere. And Louisville, the market feeding brand demand into Ohio, sits at 65.0% — near the top of this study, against Cincinnati’s 22.1% roughly a hundred miles away. One market built the reflex. Its neighbour did not.

The 80 best-covered markets

These are markets with eight or more measured firms, where BPR is a measurement rather than a coverage artifact. Gold bars mark markets under 25%.

Why this matters more as AI intermediates search

Generic search is the part of demand an AI assistant can capture. Someone typing “best car accident lawyer near me” is asking a question a model will increasingly answer directly, with its own shortlist, from sources the firm does not control. Someone typing a firm’s name has already decided; there is nothing left to intermediate. On this reading BPR is a measure of how much of a market’s demand is retrieval-resistant — how much survives the shift from search results to answers.

That reframes the table above. El Paso at 69.0% and Louisville at 65.0% are markets whose demand base is largely insulated. Greenville at 21.2%, Cincinnati at 22.1% and Buffalo at 22.4% are markets where the overwhelming majority of demand is exactly the kind an assistant can answer for itself. The exposure is not evenly distributed, and until now nobody had a number for it.

We state this as a reading of the data, not a forecast. We have not measured AI referral volume, and no public dataset does so reliably at market level.

Method & disclosure

The index is live and grows as firms are discovered and published, so BPR moves: this page was restated on 13 August 2026 — see the note above — and reports the live ledger as of that date; it will be restated again, not silently updated, when it is re-run. The non-branded layer was expanded from 18 terms to 42 on 8 August 2026 — completing every lawyer/attorney pair and adding categories that were absent altogether, including “injury lawyer near me”, medical malpractice and rideshare — which raised measured generic demand substantially and lowered every BPR figure against earlier drafts. Close variants are de-duplicated: where two terms return identical volume and identical CPC, Google is reporting one grouped keyword and it is counted once. Search volumes are Google Ads Keyword Planner bands at metro scope, snapshot August 2026. Branded demand counts active, non-duplicate firms in the index; generic demand is the standing 42-term layer described on the methodology page, which also carries this site’s funding and ownership disclosure. Markets qualify at 1,000+ monthly generic searches and 3+ measured firms (103 markets); the headline table is restricted to 8+ firms (80 markets). Keyword Planner figures are estimates, not counts. BPR is best read as a floor: undiscovered brands can only push a market’s true figure up, never down.