Sonoma County property records & parcel data.
Look up property records in Sonoma County, CA — find who owns a property, plus mailing address, assessor & tax value, land use and APN. tracts pulls 188,252 parcels directly from the Sonoma County parcel layer, with the source and pull date stamped on every record. Search a live sample below, or get the full Sonoma County dataset as a bulk file or API feed.
Sonoma County, CA
We don’t have tax-delinquent inventory for Sonoma County yet — that coverage is currently 19 Florida counties, built from county advertised certificate lists. See which counties are covered.
Free property records lookup.
Find who owns a property — search by owner name, address, or APN. This is a live sample; the full dataset is available as a bulk file or through the API.
Loading Sonoma County parcels…
Start free| APN | Owner | Address | Land use | Year | Assessed value |
|---|---|---|---|---|---|
Looking up a single address? Run a full property report — owner, valuation, sale history and tax-delinquency status for one address, with the county source and pull date on every field.
Get the full Sonoma County dataset
The complete county file — owner, mailing, assessor value, full lineage — by bulk download or API.
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What's in the dataset.
Common questions about Sonoma County data.
Every Sonoma County parcel record carries the owner name and mailing address from Sonoma County parcel layer. Search the viewer above by owner or address, or pull the full county file to query in bulk.
188,252 parcels across Sonoma County, drawn from Sonoma County parcel layer. The exact deliverable count for your filters is confirmed on the full extract.
Directly from Sonoma County parcel layer — the county's public parcel record. Every row carries its source URL and pull date, so the lineage is verifiable, not asserted.
Yes — the full Sonoma County parcel dataset is available as a CSV/JSON bulk file or through the live API (up to 1,000 records per call). The lookup here shows a free sample. Scoring and skip-trace are add-ons in development.
Owner and mailing address, situs address, APN, land use, year built, assessed/market value and (where the county publishes it) lat/long. Available fields vary by county source.
Right here — Sonoma County property records (owner, address, assessor & tax value, land use) are searchable above, sourced directly from Sonoma County parcel layer. The free lookup shows a sample; the full county file is available as a bulk download or via the API.
Every Sonoma County parcel record carries the assessor's market and assessed value and tax year from Sonoma County parcel layer. For the official tax bill the county tax collector is authoritative; tracts provides the underlying assessor values across all parcels, by file or API.
Yes — Sonoma County ownership, address and assessor records are public record, sourced here directly from Sonoma County parcel layer with full lineage. What tracts adds is bulk delivery and a standardized schema on the paid file. Scoring and skip-trace are add-ons in development.
Financing a deal here? 16 hard money lenders were active in Sonoma County in 2024 — see who is lending and at what rates.