Public ArcGIS FeatureServer endpoint for Clark County parcel data. URL, supported fields, and a working sample query, copy it, or open it directly in the UrbanKit parcel lookup tool.
This page is the endpoint reference. If you came here to find a specific property, the Clark County parcel search runs this same layer in your browser, no account and no API key.
Search Clark County parcelsHave a street address but not the parcel number? Find the parcel number by address.
https://gis.clark.wa.gov/arcgisfed2/rest/services/MapsOnline/MailingLabels/FeatureServer/0Field by field, whether any endpoint we index for Clark County answers it, and the evidence for each. We only call a field restricted when there is a stated reason we can cite. Everything else here is a fact about the services we index, not a claim about the law.
| Field | Status | Basis |
|---|---|---|
| APN | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Owner name | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Owner mailing address | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Site address | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Geometry | Answered | Documented in a field list on an endpoint we index. Not every row is populated. |
| Land use | Not published | No endpoint we index for this county documents this field, so a query cannot ask for it. That is a fact about the services we index, not a legal restriction, and not a statement that the county holds no such record. Where to request it. |
| Zoning | Not published | No endpoint we index for this county documents this field, so a query cannot ask for it. That is a fact about the services we index, not a legal restriction, and not a statement that the county holds no such record. Where to request it. |
Prop_idParcel ID (Assessor Property ID)SitusAddrsSitus AddressMailAddrsOwner Mailing AddressMailNameOwner Name (taxpayer mailing name)curl -s 'https://gis.clark.wa.gov/arcgisfed2/rest/services/MapsOnline/MailingLabels/FeatureServer/0/query?where=UPPER(MailName)+LIKE+UPPER('%25SMITH%25')&outFields=Prop_id,MailName,SitusAddrs,MailAddrs,MailCityStateCountryZip&returnGeometry=false&resultRecordCount=10&f=json'https://gis.clark.wa.gov/arcgisfed2/rest/services/MapsOnline/MailingLabels/FeatureServer/0/query?where=UPPER(MailName)+LIKE+UPPER('%SMITH%')&outFields=Prop_id,MailName,SitusAddrs,MailAddrs,MailCityStateCountryZip&returnGeometry=false&resultRecordCount=10&f=jsonOpen this URL in a browser tab to see the raw ArcGIS JSON response.
| Field name | Label | Searchable |
|---|---|---|
| Prop_id | Parcel ID (Assessor Property ID) | YES |
| SitusAddrs | Situs Address | YES |
| SitusCityStateZip | Situs City, State and ZIP | NO |
| MailAddrs | Owner Mailing Address | YES |
| MailCityStateCountryZip | Owner Mailing City, State, Country and ZIP | NO |
| MailName | Owner Name (taxpayer mailing name) | YES |
| MailCareOf | Owner Care-Of Line | NO |
| DateOfParcels | Parcel Publish Date | NO |
Clark County, Washington (Vancouver; FIPS 53011). The county's own ArcGIS Server publishes the layer behind its MapsOnline mailing-label tool as MapsOnline/MailingLabels FeatureServer layer 0 ('Owner Addresses', one polygon per taxlot): 196,284 rows on 2026-10-10, every one with an owner name. The owner is MailName (the taxpayer mailing name) with MailCareOf (a care-of line, on 3,652 rows); the owner mailing address is MailAddrs (street line, padded with trailing spaces) plus MailCityStateCountryZip (city, state, country and ZIP in one string); the situs is SitusAddrs (street only) with SitusCityStateZip beside it (both blank on 17,980 rows); the parcel id is Prop_id, the Assessor's numeric property id (an integer, so search it with = rather than LIKE). The layer has no sale or value fields. Currency: DateOfParcels ('Parcel Publish Date') is 2026-10-09 on every row, so the layer is republished whole from the Assessor's parcels; it is the freshness field this record relies on. CORS: no Access-Control-Allow-Origin header is sent, with or without an Origin header, so a browser on another site cannot read it and corsEnabled is false; query it from a server, the metered API or the MCP. maxRecordCount is 5,000 with pagination. SIBLING NOT USED: MapsOnline/PropertyFinder MapServer layer 1 ('Taxlots', 196,283 rows, same Prop_id) also carries the owner, but it has no date field, gives the mailing address only as MailAddrs1-3 street lines with no city, state or ZIP (line 1 is sometimes a care-of name), runs city and ZIP into its single situs string, and its own description says it 'is still under development and may change without notice'. The Assessor's Recent Sales layer (LandRecords MapServer 6) had sales through 2026-09-29 and a publish date of 2026-10-02 on 2026-10-10. WASHINGTON LAW: RCW 42.56.070(8) bars agencies from releasing lists of individuals for commercial purposes, and some Washington counties (Pierce, Spokane) withhold owner names from their public layers for that reason; Clark publishes them on this public layer. No license or terms text is published on the service. Verified 2026-10-10: a count, resultRecordCount=1, an owner LIKE query (1,447 rows for %SMITH%), a situs LIKE query on MAIN ST (363 rows) and a point query at the county's internal point (one parcel, with an owner).
Clark County GIS (MapsOnline); Clark County Assessor for the owner records, https://gis.clark.wa.gov/gishome/
Clark County's Owner Addresses layer exposes a parcel identifier (Parcel ID (Assessor Property ID)), owner names (Owner Mailing Address, Owner Name (taxpayer mailing name)), and address fields (Situs Address). Use it for owner-name lookups and address-based parcel searches. 4 of 8 listed fields accept queries; the rest are returned on read but not indexed for search. Served as an ArcGIS FeatureServer layer, so edits and applyEdits operations are technically exposed (read access only is published here); last verified 2026-10-10.
/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 Clark County actually publishes, not what you might expect from a national standard (there isn't one).
For background, see What is an APN?
gis.clark.wa.gov serves Clark County, Washington 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 Clark County's FeatureServer layer on 2026-10-10. 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.
Clark County's layer is hosted by the county on gis.clark.wa.gov. Public ArcGIS endpoints rarely rate-limit individual reads, but gis.clark.wa.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.