13 attribute fields, profiled from the May 2022 vintage.
Columns in Knox County
| Field | Type | Filled | Distinct | Example values |
|---|---|---|---|---|
| parcel_id | OFTString | 14.2k | 9825, 9825, 9526 | |
| pid | OFTString | 14.2k | 049-00-00-003.00, 049-00-00-003.00, 049-00-00-004.00 | |
| account | OFTString | 14.2k | 9825 (PID: 287037 PTID: 9825), 9825 (PID: 287037 PTID: 9825), 9526 (PID: 286782 PTID: 9526) | |
| map_no | OFTString | 14.2k | 049-00-00-003.00, 049-00-00-003.00, 049-00-00-004.00 | |
| owner | OFTString | 11.7k | LAMBDIN JOHN GREGORY KARLA KIM, LAMBDIN JOHN GREGORY KARLA KIM, KELLY YVONNE ELMORE JR | |
| owner2 | OFTString | 1.8k | JOHN MONROE HOLDS LIFE EST, C/O RIFFIE MATLOCK, C/O RONNIE MATLOCK | |
| mail_addr1 | OFTString | 8.3k | 7360 HWY 779, 7360 HWY 779, 1249 POWERS BR RD | |
| mail_addr2 | OFTString | 1.1k | ROCKHOLD KY 40759, ROCKHOLD KY 40759, BARBOURVILLE KY 40906 | |
| situs | OFTString | 9.7k | 1214 POWERS BR RD, 1214 POWERS BR RD, 1249 POWERS BR RD | |
| legal | OFTString | 14.1k | 14.18 AC BULLALO BR DB 175-609 DB 285-102, 14.18 AC BULLALO BR DB 175-609 DB 285-102, 21.0 ACS BUFFALO CREEK | |
| use_code | OFTString | 6 | FARM, FARM, FARM | |
| acres | OFTString | 1.8k | 14.18, 14.18, 21 | |
| key | OFTString | 14.3k | 9825, 9825, 9526 |
Why this differs from the next county over
There is no national parcel schema. Every assessor's office built its own, usually decades ago, usually inside whatever CAMA system it bought at the time. One county's owner column is OWNER_NAME, the next one's is own1, and a third splits it across four fields. Shapefile's ten-character DBF limit truncated a generation of them into things like TOTLNDVAL.
Nothing here is renamed or remapped. The columns above are exactly what is in the file, because a normalisation layer that quietly guesses wrong is worse than no normalisation at all — and every guess it makes is one you cannot audit.
The Filled column is the share of rows with a real value. Placeholder text such as n/a counts as empty; a column that is 100% present but 90% placeholder is a column that will disappoint you, and the profiler treats it accordingly.