Public ArcGIS MapServer endpoint for San Diego County parcel data. URL, supported fields, and a working sample query, copy it, or open it directly in the UrbanKit parcel lookup tool.
https://webmaps.sandiego.gov/arcgis/rest/services/GeocoderMerged/MapServer/1APNAssessor Parcel NumberAPN_8APN (8-digit)OWN_NAME1Owner Name (Primary)OWN_NAME2Owner Name 2OWN_NAME3Owner Name 3OWN_ADDR1Owner Address 1SITUS_ADDRESSSitus Street NumberSITUS_STREETSitus Street NameSITUS_COMMUNITYSitus Community/CitySITUS_ZIPSitus ZIPcurl -s 'https://webmaps.sandiego.gov/arcgis/rest/services/GeocoderMerged/MapServer/1/query?where=UPPER(OWN_NAME1)+LIKE+UPPER('%25SMITH%25')&outFields=APN,OWN_NAME1,SITUS_ADDRESS,SITUS_STREET,SITUS_COMMUNITY,SITUS_ZIP&returnGeometry=false&f=json&resultRecordCount=10'https://webmaps.sandiego.gov/arcgis/rest/services/GeocoderMerged/MapServer/1/query?where=UPPER(OWN_NAME1)+LIKE+UPPER('%SMITH%')&outFields=APN,OWN_NAME1,SITUS_ADDRESS,SITUS_STREET,SITUS_COMMUNITY,SITUS_ZIP&returnGeometry=false&f=json&resultRecordCount=10Open this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| APN | Assessor Parcel Number | YES |
| APN_8 | APN (8-digit) | YES |
| OWN_NAME1 | Owner Name (Primary) | YES |
| OWN_NAME2 | Owner Name 2 | YES |
| OWN_NAME3 | Owner Name 3 | YES |
| OWN_ADDR1 | Owner Address 1 | YES |
| SITUS_ADDRESS | Situs Street Number | YES |
| SITUS_STREET | Situs Street Name | YES |
| SITUS_COMMUNITY | Situs Community/City | YES |
| SITUS_ZIP | Situs ZIP | YES |
65 fields confirmed including APN, APN_8, PARCELID, OWN_NAME1/2/3, OWN_ADDR1-4, OWN_ZIP, SITUS_ADDRESS (house number), SITUS_STREET, SITUS_SUFFIX, SITUS_PRE_DIR, SITUS_POST_DIR, SITUS_BUILDING, SITUS_SUITE, SITUS_COMMUNITY, SITUS_ZIP, SITUS_JURIS, OWNEROCC, NUCLEUS_SITUS_FROM_NBR/THRU_NBR, NUCLEUS_USE_CD, NUCLEUS_ZONE_CD. Owner query tested and confirmed, OWN_NAME1 returns real names (e.g., 'SMITH MARY ANN'). The display field is OWN_NAME1. Copyright: 'SanGIS using legal recorded data provided by the County Recorders and Assessor's Office.' This is the GeocoderMerged MapServer layer 1, which combines assessor parcel data. A sibling PARCELS_ALL service exists at gis-public.sandiegocounty.gov/arcgis/rest/services/sdep_warehouse/PARCELS_ALL/MapServer but returns HTTP 403 to external callers; the webmaps.sandiego.gov endpoint is the publicly accessible equivalent.
SanGIS / San Diego County GIS, https://gis-public.sandiegocounty.gov/
San Diego County's PARCELS_ALL layer exposes parcel identifiers (Assessor Parcel Number, APN (8-digit)), owner names (Owner Name (Primary), Owner Name 2, Owner Name 3, Owner Address 1), and address fields (Situs Street Number, Situs Street Name, Situs Community/City, Situs ZIP). Use it for owner-name lookups and address-based parcel searches. All 10 listed fields accept queries. Served as an ArcGIS MapServer layer, which supports query operations but not write operations; last verified 2026-05-15.
/query?where=…&outFields=*&f=jsonto the URL. The sample query above is a working example you can paste into a browser tab to see the raw JSON response.Counties publish parcel data through their own ArcGIS Server installations, each with its own schema. One county uses APN, another uses PIN, a third uses PARCEL_ID. Some expose owner names; others keep them on a separate assessor's portal. The searchable fields list above reflects what San Diego County actually publishes, not what you might expect from a national standard (there isn't one).
For background, see What is an APN?
webmaps.sandiego.gov serves San Diego County, California parcels over public ArcGIS REST, but, like most county servers, it may not send the CORS headers a browser needs for a cross-origin fetch. If a direct browser call fails, the layer still works from curl, Postman, or a server-side script; the UrbanKit parcel lookup tool proxies the request, so a search that succeeds there confirms the layer is genuinely public.
We last verified San Diego County's MapServer layer on 2026-05-15. County GIS teams move services without notice, so if you hit a fresh 404, tell us and we'll re-check. Atlas entries are re-verified on a rolling basis.
San Diego County's layer is hosted by the county on webmaps.sandiego.gov. Public ArcGIS endpoints rarely rate-limit individual reads, but webmaps.sandiego.gov can throttle heavy automated traffic at the host level. Page through results with resultOffset / resultRecordCount and request only the fields you need. There's no API key and no charge from the county.