36 attribute fields, profiled from the January 2024 vintage.
Columns in Williamson County
| Field | Type | Filled | Distinct | Example values |
|---|---|---|---|---|
| objectid | OFTInteger | 50.0k | 44155, 44157, 44158 | |
| pin | OFTString | 50.0k | 09-31-100-001, 09-31-200-002, 09-31-300-001 | |
| owner_name | OFTString | 31.5k | UNITED STATES DEPT OF INTERIOR, UNITED STATES DEPT OF INTERIOR, UNITED STATES DEPT OF INTERIOR | |
| legal_desc | OFTString | 31.8k | EX 1.24A, N + S EX THAT PT OF NE NW LYING S OF PUBLIC RD, THAT PT LYING S OF PUB RD NE NW 390-140 5-2-79 | |
| location | OFTString | 34.4k | 1053 SKELCHER BLVD; MAKANDA IL; 62958, 3055 MYERS LN; MAKANDA IL; 62958, SKELCHER BLVD; MAKANDA IL; 62958 | |
| billing_na | OFTString | 29.8k | US FISH & WILDLIFE SERVICE; DIVISION OF REALTY, US FISH & WILDLIFE SERVICE; DIVISION OF REALTY, US FISH & WILDLIFE SERVICE; DIVISION OF REALTY | |
| billingadd | OFTString | 31.3k | 5600 AMERICAN BLVD W STE 990; BLOOMINGTON MN; 55437, 5600 AMERICAN BLVD W STE 990; BLOOMINGTON MN; 55437, 5600 AMERICAN BLVD W STE 990; BLOOMINGTON MN; 55437 | |
| township | OFTString | 12 | Grassy, Grassy, Grassy | |
| usecode | OFTString | 18 | 0090, 0090, 0090 | |
| usecodedes | OFTString | 10 | Exempt, Exempt, Exempt | |
| book | OFTString | 251 | 519, 495, 499 | |
| page | OFTString | 1.1k | 761, 400, 788 | |
| lot | OFTString | 828 | 001, 002, 003 | |
| block | OFTString | 92 | 002, 002, 002 | |
| section_ | OFTString | 43 | 31, 31, 31 | |
| quarter_se | OFTString | 9 | NW, NE, SW | |
| land_lot_a | OFTReal | 1.5k | 160.0, 158.71, 112.0 | |
| farm_acres | OFTReal | 2.9k | 0.0, 0.0, 0.0 | |
| non_farm_a | OFTReal | 162 | 0.0, 0.0, 0.0 | |
| total_acre | OFTReal | 3.1k | 160.0, 158.71, 112.0 | |
| land | OFTInteger | 2.9k | 50, 50, 50 | |
| farmland | OFTInteger | 2.1k | 0, 0, 0 | |
| building | OFTInteger | 8.4k | 0, 0, 0 | |
| farmbuildi | OFTInteger | 798 | 0, 0, 0 | |
| full_marke | OFTReal | 9.9k | 150.0, 150.0, 150.0 | |
| total | OFTReal | 11.6k | 50.0, 50.0, 50.0 | |
| owner_occu | OFTString | 1 | Y, Y, Y | |
| sr_homeste | OFTString | 1 | Y, Y, Y | |
| sr_freeze | OFTString | 1 | Y, Y, Y | |
| home_impro | OFTString | 1 | Y, Y, Y | |
| home_imp_1 | OFTString | 7 | 12-31-2024, 12-31-2023, 12-31-2023 | |
| disabled_h | OFTString | — | ||
| disabled_v | OFTString | — | ||
| disabled_1 | OFTString | — | ||
| returning_ | OFTString | — | ||
| url | OFTString | 50.0k | https://d3od6btpyp4z96.cloudfront.net/0931100001.TIF, https://d3od6btpyp4z96.cloudfront.net/0931200002.TIF, https://d3od6btpyp4z96.cloudfront.net/0931300001.TIF |
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.