No. There is no single database that holds every US parcel. Our own catalogue is the proof: of 2,021 connected sources on 2026-09-25, not one is a national US parcel source, and of the 408 rows carrying no state code, not one is an enumeration: the only kind that could answer a parcel question across a country.
What "national" would have to mean
A national US parcel database would have to return a parcel record for any of the 3,143 counties in the country, from one place, with the same fields each time. Nothing we have connected does that, and we have now looked at 2,051 sources to find out. The honest answer to the question is no, and the cheapest way to show it is to publish our own inventory rather than describe it.
Every figure below comes from one query against our open data catalogue, pulled on 2026-09-25 (the response stamped itself generatedAt 2026-09-25T15:39:03Z). The coverage grades in the section on uneven states come from our internal geography record, measured 2026-09-14 and not re-measured since. Those are two different measurements on two different bases; they are reported separately here and never added together.
408 sources with no state code is not a national layer
As of 2026-09-25, our catalogue listed 2,051 sources, of which 2,021 were connected; the pipeline can query them today. The remaining 30 are listed too: 27 assessed and rejected, each carrying the written reason we turned it down, one in progress, one blocked by its publisher, one planned.
Of those 2,021 connected sources, 408 carry no state value at all. That looks like the shape of a national layer, and it is not one. Not one of the 408 is an enumeration: the only kind that can list every property in an area, and so the only kind a national parcel layer could be built from. All 408 are lookups: they answer about one property you bring them.
And a stateless row is not even reliably a foreign one; sometimes it is our own bookkeeping. Of the 408, 171 are American sources that simply do not carry their state code: a city or county dataset whose connector names one state in its own code and refuses every other, while the catalogue row beside it says nothing. That is a defect in our catalogue, not a fact about the country, and a fix for exactly those 171 is in review as we publish this. We name it here because the alternative is letting a reader count our own gap as evidence for a claim that flatters us.
The twentieth is American, and it is an index of property records from three counties. Three counties, out of 3,143.
The conclusion the catalogue supports is unchanged from the first time we published it: there is no national US parcel source in this catalogue, and nothing in the stateless bucket reaches a county in a state where we hold nothing.
Where the map ends
Two states had no connected source of any kind on 2026-09-25: Kansas and South Dakota. On 2026-09-11 there were nine: Alabama, Delaware, Hawaii, Iowa, Kentucky, Mississippi and South Carolina have since gained one. Seven states off that old list is the largest single change on this page, and it is the one we would most like you to check rather than take from us.
Connected coverage stands at 48 states plus the District of Columbia, 49 jurisdiction codes carried by connected rows. The catalogue's own summary field statesCovered returns 45, not 49, because it counts something narrower: the states our source registry can actually route a lookup to. Alabama, Iowa, Kentucky and South Carolina have a connected source but no route yet, so they appear in one number and not the other. We publish both numbers rather than the larger one: they are two definitions in the same response, and picking the flattering one is how a coverage claim starts to drift.
Inside the covered states, coverage is not uniform either
"Connected" is not "complete," and this is where a national claim usually breaks quietly. From our geography record as of 2026-09-14, when 42 jurisdictions were registered rather than today's 49: a full parcel sweep existed in Florida and Texas only. A statewide parcel record existed in 19 states. The remaining 23 registered states were listed counties only: Georgia four counties, Arizona Maricopa and Pima, California 11 counties of 58. That record has not been re-measured since, so we state it in the past tense and against its own total; do not subtract it from the 49 above.
A count of sources is not a measure of depth, and neither is a count of states.
The fields are not uniform where the data does exist
Of the 2,021 connected sources, 73 carry a field-level disclosure matrix: whether that source returns a parcel id, an address, a land use, an assessed value, a building area, a sale date, a sale price. The other 1,948 publish no such matrix. By kind, the 2,021 split into 1,910 lookups, 73 enumerations and 38 signals; the 99,595,678 records in the catalogue are the count carried by those 73 enumerations, and they are parcels, not transactions, and not distinct buildings. Note what grew and what did not: connected sources went up roughly sevenfold since 2026-09-11, and the number publishing a disclosure matrix went from 66 to 73.
The most important number in the disclosure matrix is the smallest. 24 connected sources disclose a recorded sale price, across 19 states, all as of 2026-09-11. Recorded price is the thinnest layer in American property data. Texas is the clearest case, and the catalogue says it in the source's own words: "Texas is a non-disclosure state: the appraisal roll carries no sale price and no sale date."
What we do not publish about our own catalogue
We do not publish a refresh cadence, because we do not hold one. The only per-source date in the catalogue, measuredAt, exists on 100 of the 2,051 rows and 73 of the 2,021 connected ones (the same 73 that carry a disclosure matrix) and the stamps read 2026-08-13, -15, -22 and 2026-09-19. It records when we last measured that source, not when the publisher last refreshed it. We did not re-measure licence and redistribution rights for this update, so we make no blanket statement about what each licence permits.
What we will send you instead
We will send the full source list, including the two states where we hold nothing, before you sign anything.