Parcel data by state

Free parcel data in Oklahoma

Oklahoma has no single free statewide parcel layer we could verify, but many counties publish their own. Basesheet currently uses 4 Oklahoma county services: Canadian, Cleveland, Oklahoma, Tulsa.

County layers

Canadian County

Hosted FeatureServer view, layer id 3 ('Parcel Data (External)'); native EPSG:6553 (OK North ftUS, NAD83(2011), reported as wkid 103133); reprojects on outSR. parcel_id is a dashed 20-character string 'SSTTRR-BBBBBB-LLLLLL' style, e.g. '020170-075000-000000' (some end in a letter, '310181-030000-00000C'); account is the 9-digit Assessor account ('090024929'). Match parcel_id with dashes; if the user gives 18 bare digits, re-insert dashes after positions 6 and 12. situs/situs_city/situs_zip are the property address; mail_* is the owner mailing address. subdiv_block and subdiv_lot are separate fields. Layers 0, 2 and 4 on the same service are subdivisions, lots and blocks.

Cleveland County

Hosted FeatureServer, native EPSG:2268 (OK South ftUS, reported as wkid 102725); reprojects on outSR. UserAccount is the Assessor account 'R' + 7 digits ('R0023734') and is the cleanest key. ParcelID (= name = GISKey) is a fixed-width code with embedded runs of spaces, e.g. 'NC29AAAOT 7 6001', so exact-match only with the spacing intact. This is a parcel fabric export: about 1,800 features are retired parcels (retiredbyrecord IS NOT NULL) that can overlap current ones, so add 'retiredbyrecord IS NULL' to point queries when possible; about 1,100 current polygons have no CAMA join (UserAccount null). FormattedLocation is the situs street, LocationCity the situs city; Mailing* fields are the owner mailing address. Block, Lot, Section, Township, Range are separate fields; LegalReference is mostly null. The assessor's own server gis.clevelandcountyassessor.us did not respond on 2026-10-20. If this item is retired for a newer month, look for a successor in org kxHJSF07PF5lbQ3z.

Oklahoma County

Hosted FeatureServer view, native EPSG:2267 (OK North ftUS, reported as wkid 102724); reprojects on outSR. pin is the dashed parcel number '2730-01-001-6900' (4-2-3-4); PARCELNB_1 is the same 13 digits with no dashes ('2730010016900'); accountno is the Assessor account 'R' + 9 digits ('R010016900'). Normalize user input to digits and match PARCELNB_1, or match pin with dashes. One account can be several polygon pieces (the courthouse returned 2), so union by accountno. location includes the city ('320 ROBERT S KERR AVE OKLAHOMA CITY'); locationcity is the situs city; city/state/zipcode are mailing. Layer minScale 10607 only affects drawing. A sibling InternalParcelData_view service exists in the same org but was not used.

Tulsa County

FeatureServer on INCOG's server, native EPSG:2267 (OK North ftUS, reported as wkid 102724); reprojects on outSR. ParcelNo is a 14-digit string with no dashes, e.g. '00500920140670' (Assessor shows it as 00500-92-01-40670, 5-2-2-5); ACCT_NUM is identical and AccountNo adds an 'R' prefix ('R00500920140670'). Strip dashes from user input and match ParcelNo. PropertyAddress uses Tulsa's trailing quadrant style ('218 W 6 ST S', '500 S DENVER AV W'). PropertyCity is the situs city; City/State/ZIPCode are mailing. ReceptionNo is the County Clerk reception number of the last deed (often null). Legal is space-padded to 250 chars, so trim. INCOG also publishes Creek, Osage, Rogers and Wagoner county parcels on the same server.

How to use it

• QGIS: Layer > Data Source Manager > ArcGIS REST Server, add a connection with the service URL (the endpoint above without the final /0), then add the layer. Filter to your area before exporting.
• ArcGIS Pro: Add Data > Data From Path, paste the endpoint.
• Direct query: append /query?geometry=LON,LAT&geometryType=esriGeometryPoint&inSR=4326&spatialRel=esriSpatialRelIntersects&outFields=*&f=geojson to get the parcel at a point.
• CAD: see getting a parcel into AutoCAD or Civil 3D.

Assessor parcel lines are for taxation and are often 5 to 50 ft off the legal boundary. Why.