19 attribute fields, profiled from the June 2023 vintage.
Columns in Lake County
| Field | Type | Filled | Distinct | Example values |
|---|---|---|---|---|
| objectid | OFTInteger | 50.0k | 208603, 208619, 208646 | |
| gis_parcel | OFTString | 50.0k | 45-26-01-100-002.000-037, 45-26-01-100-005.000-037, 45-26-01-100-003.000-037 | |
| tsc_parcel | OFTString | 50.0k | 45-26-01-100-002.000-037, 45-26-01-100-005.000-037, 45-26-01-100-003.000-037 | |
| tsc_owner1 | OFTString | 50.0k | State Of Indiana Department of Conservation, Dept Of Conservation Of State Of, State Of Ind Dept Natural Resources | |
| tsc_mailin | OFTString | 50.0k | 100 N Senate AVE Indianapolis IN 46204, 402 W Washington W267 Indianapolis IN 46204, 100 N Senate AVE Indianapolis IN 46204-2208 | |
| tsc_site_a | OFTString | 50.0k | 13000 W 245TH SCHNEIDER IN 46376, 13000 W 245TH ST SCHNEIDER IN 46376, 12905 W 245TH SCHNEIDER IN 46376 | |
| tsc_tax_co | OFTString | 48 | 037, 037, 037 | |
| tsc_tax_de | OFTString | 48 | West Creek Twp, West Creek Twp, West Creek Twp | |
| tsc_legal_ | OFTString | 50.0k | PT. SW. S.1 T.31 R.10 .20A '70 X 125 FT.', PT. SW. S.1 T.31 R.10 .50 A., N. W. COR. SW. S.1 T.31 R.10 .57A. | |
| tsc_net_ac | OFTReal | 7.0k | 0.2, 0.5, 0.57 | |
| tsc_sec_tw | OFTString | 661 | 1 31 10, 1 31 10, 1 31 10 | |
| tsc_proper | OFTString | 130 | Exempt State, Exempt State, Exempt State | |
| tsc_zoning | OFTString | 2 | 0, 0, 0 | |
| tsc_use_co | OFTString | 2 | 0, 0, 0 | |
| tsc_tif | OFTString | 83 | 038 Lowell Area, 038 Lowell Area, 038 Lowell Area | |
| tsc_deduct | OFTString | 501 | Homestead, Homestead-Suppl, Homestead, Mortgage, Homestead-Suppl, Homestead, Homestead-Suppl | |
| tsc_spas | OFTString | 14 | Clean Water Act Fee, Clean Water Act Fee, Clean Water Act Fee | |
| shape__are | OFTReal | 50.0k | 1387.046875, 16.40625, 14446.40625 | |
| shape__len | OFTReal | 50.0k | 157.081871244166, 16.2034098681289, 536.165870358922 |
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.