11 attribute fields, profiled from the March 2018 vintage.
Columns in Montgomery County
| Field | Type | Filled | Distinct | Example values |
|---|---|---|---|---|
| PARCEL_ID | OFTString | 10.0k | 091 010000 0000000100, 091 010000 0000000300, 091 010000 0000000400 | |
| OWNER | OFTString | 6.9k | BLAKELY JERRY C ETUX SHIRLEY, MORGAN J C ETUX JEAN, ELMORE CECIL EST | |
| MUNI_ID | OFTInteger64 | 5 | 711992, 711992, 711992 | |
| SCHOOL_DIS | OFTInteger64 | 4 | 2802970, 2802970, 2802970 | |
| ZIP_CODE | OFTString | 7 | 38967, 38967, 38967 | |
| LEGAL_DESC | OFTString | 7.9k | DEEDBOOKS A79, SS, DEEDPAGES 03200, 00210,, DEEDBOOKS A127, A127, DEEDPAGES 00479, 00479,, DEEDBOOKS A22 DEEDPAGES 302 | |
| MAIL_ADDRE | OFTString | 4.9k | 1936 HWY 51, 22 MCQUIRTER CIR, 20252 LAKE EDGE LANE | |
| CENSUS_TRA | OFTInteger64 | 3 | 950100, 950100, 950100 | |
| CENSUS_BLK | OFTInteger | 6 | 2, 4, 2 | |
| CENSUS_BLO | OFTInteger | 451 | 2067, 4082, 2067 | |
| CTY_ROW_ID | OFTInteger64 | 10.0k | 3697, 3890, 3892 |
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.