10 attribute fields, profiled from the October 2022 vintage.
Columns in Perry County
| Field | Type | Filled | Distinct | Example values |
|---|---|---|---|---|
| parcel_id | OFTString | 15.1k | 1640200103, 1640200100, 1640220131 | |
| pid | OFTString | 15.1k | 1640200103, 1640200100, 1640220131 | |
| altid | OFTString | — | ||
| owner | OFTString | 10.4k | TAVOR PROPERTIES, LLC, KHC LAND, LLC, MURRAY WILLIAM K. VICTORIA R., MICHAEL P. MURRAY | |
| mail_addr | OFTString | 9.3k | 500 CUTLER TRICO RD PERCY IL 62272, 500 CUTLER-TRICO RD PERCY IL 62272, 80 WEST LAKE DR TROY IL 62294 | |
| situs | OFTString | 9.6k | 1270 SCHOOL STREET PERCY IL 62272, GOLDFISH RD PERCY IL 62272, 1663 BROADWAY WILLISVILLE IL 62916 | |
| use_code | OFTString | 16 | 0011, 0021, 0029 | |
| acres | OFTString | 2.5k | 200, 77.25, 5.49 | |
| legal | OFTString | 15.1k | Sec 30 TWP 06 RNG 04 W 25A SE SW EX 3/4A 2020-2624 4/4/1969, Sec 31 TWP 06 RNG 04 PT S NW 2011-748 317-579 -9/27/1973, TWN 06 RNG 04 SECTION 31 PT NE NE 2006-1474 -4/28/2006 | |
| key | OFTString | 15.7k | 1640200103, 1640200100, 1640220131 |
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.