79 attribute fields, profiled from the May 2024 vintage.
Columns in Roane County
| Field | Type | Filled | Distinct | Example values |
|---|---|---|---|---|
| gislink | OFTString | 35.4k | 073001 00100, 073001 00300, 073001 00400 | |
| parcelid | OFTString | 44.2k | 073 001 00100 000 2024, 073 001 00300 000 2024, 073 001 00400 000 2024 | |
| file_type | OFTString | 1 | A, A, A | |
| conum | OFTString | 1 | 073, 073, 073 | |
| cmap | OFTString | 476 | 001, 001, 001 | |
| gp | OFTString | 18 | A, A, A | |
| parcel | OFTString | 2.2k | 001.00, 003.00, 004.00 | |
| pi | OFTString | 4 | T, T, T | |
| si | OFTString | 35 | 000, 000, 000 | |
| map | OFTString | 603 | 001, 001, 001 | |
| taxyr | OFTString | 2 | C, C, C | |
| taxyr_num | OFTInteger | 2 | 2024, 2024, 2024 | |
| address | OFTString | 28.7k | HEN VALLEY RD 412, HEN VALLEY RD 414, HEN VALLEY RD 502 | |
| class | OFTString | 16 | 00 RESIDENTIAL, 00 RESIDENTIAL, 00 RESIDENTIAL | |
| city | OFTString | 6 | 554 OLIVER SPRINGS, 554 OLIVER SPRINGS, 554 OLIVER SPRINGS | |
| ssd1 | OFTString | 1 | 000, 000, 000 | |
| ssd2 | OFTString | 1 | 000, 000, 000 | |
| deedac | OFTReal | 2.1k | 0.37, 0.0, 0.0 | |
| calcac | OFTReal | 1.8k | 0.0, 2.0, 0.0 | |
| landunits | OFTReal | 3.1k | 0.37, 2.0, 0.3 | |
| district | OFTString | 16 | 02, 02, 02 | |
| marketarea | OFTString | 17 | OZ01, OZ01, OZ01 | |
| nhoodtrend | OFTString | — | ||
| roadtype | OFTString | 9 | 3 PAVED, 3 PAVED, 3 PAVED | |
| topo | OFTString | 6 | 1 ROLLING, 1 ROLLING, 1 ROLLING | |
| bldgs | OFTInteger | 22 | 1, 1, 1 | |
| num_mh | OFTInteger | 6 | 0, 0, 0 | |
| water | OFTString | 4 | PUBLIC, PUBLIC, PUBLIC | |
| sewer | OFTString | 3 | PUBLIC, PUBLIC, PUBLIC | |
| elec | OFTString | 3 | PUBLIC, PUBLIC, PUBLIC | |
| gas | OFTString | 3 | PUBLIC, PUBLIC, PUBLIC | |
| gastype | OFTString | 2 | NATURAL, NATURAL, NATURAL | |
| owner | OFTString | 28.1k | JONES CHASEN I, ENGLAND RAYMOND & MABLE J, LOVEDAY DENNIS & RUTH SCARBROUGH | |
| owner2 | OFTString | 3.7k | C/O THOMPSON JAMES, GRIFFIN JAMES MARTEZ, C/O STELLA MORGAN | |
| mailaddr | OFTString | 24.4k | 411 HEN VALLEY ROAD, 414 HEN VALLEY ROAD, 239 MASSINGILL SPRINGS ROAD | |
| mailcity | OFTString | 1.3k | OLIVER SPRINGS, OLIVER SPRINGS, HARRIMAN | |
| state | OFTString | 55 | TN, TN, TN | |
| zip | OFTString | 2.7k | 37840, 37840, 37748 | |
| landmktval | OFTInteger64 | 3.1k | 7100, 18500, 6600 | |
| landuseval | OFTInteger64 | 1.1k | 0, 0, 0 | |
| impval | OFTInteger64 | 5.0k | 600, 56500, 20200 | |
| appraisal | OFTInteger64 | 6.2k | 7700, 75000, 26800 | |
| usevalue | OFTInteger64 | 1.7k | 0, 0, 0 | |
| asmtpct | OFTInteger | 3 | 25, 25, 25 | |
| assessment | OFTInteger64 | 7.2k | 1925, 18750, 6700 | |
| saledate | OFTDate | 10.4k | 2022-01-19, 1992-05-22, 2018-06-04 | |
| price | OFTInteger64 | 3.2k | 0, 8000, 30000 | |
| deed_book | OFTString | 1.5k | 1843, Y18, 1653 | |
| deed_page | OFTString | 1.5k | 591, 329, 584 | |
| vi | OFTString | 2 | V, I, I | |
| typeinstr | OFTString | 31 | QC, WD, WD | |
| lastupdate | OFTDate | 237 | 2023-09-13, 2023-09-13, 2023-09-13 | |
| landuse | OFTString | 42 | 11 - HOUSEHOLD UNITS, 11 - HOUSEHOLD UNITS, 11 - HOUSEHOLD UNITS | |
| subdiv | OFTString | 672 | R H SPRANKLE W END A, SHARP PROP REV, SCOTTS ADDN TO OLIVE | |
| block | OFTString | 203 | C1, D, D | |
| lot | OFTString | 3.0k | TR 1, 2, 1 | |
| zoning | OFTString | 29 | C-1, C-3, C-3 | |
| id | OFTString | 35.4k | 001 001.00, 001 003.00, 001 004.00 | |
| imptype | OFTString | 49 | 51, 01, 51 | |
| imp | OFTString | 49 | 51 Single Family, 01 Single Family, 51 Single Family | |
| yrblt | OFTInteger | 148 | 0, 1992, 1948 | |
| stories | OFTInteger | 5 | 0, 1, 1 | |
| extwall | OFTString | 20 | 0, 04, 04 | |
| basearea | OFTInteger | 2.9k | 0, 900, 798 | |
| sfla | OFTInteger64 | 3.8k | 0, 900, 798 | |
| grade | OFTString | 12 | 0, 1-, 0- | |
| bldgcond | OFTString | 11 | AV, AV, AV | |
| pid | OFTInteger | 35.8k | 17, 12, 35 | |
| county_id | OFTInteger | 2 | 73, 73, 73 | |
| parcel_typ | OFTInteger64 | 5 | 1, 1, 1 | |
| p_gislink | OFTString | 35.4k | 073001 00100, 073001 00300, 073001 00400 | |
| gislink2 | OFTString | 1 | 073057 06302 | |
| calc_acre | OFTReal | 35.7k | 0.3292226, 1.69032843, 0.32819514 | |
| last_updat | OFTString | 4.0k | 12/6/2010 1:47:40 PM, 12/6/2010 1:46:50 PM, 12/6/2010 1:41:05 PM | |
| globalid | OFTString | 35.8k | {6E88AD84-F529-4DD2-8218-67B6FC3248E7}, {DD534401-BE66-48C6-8108-7F3F2EE23295}, {0C15FD37-EABB-48C7-A329-884A08A65147} | |
| created_us | OFTString | 4 | PHILJ, PHILJ, PHILJ | |
| created_da | OFTDate | 970 | 2020-12-18, 2020-12-18, 2022-09-07 | |
| last_edite | OFTString | 2 | GIS, GIS, GIS | |
| last_edi_1 | OFTDate | 161 | 2023-06-23, 2023-06-23, 2023-06-23 |
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.