38 attribute fields, profiled from the August 2021 vintage.
Columns in Winnebago County
| Field | Type | Filled | Distinct | Example values |
|---|---|---|---|---|
| objectid | OFTInteger | 50.0k | 174677067, 174691200, 174695727 | |
| primarypin | OFTString | 50.0k | 15-31-100-007, 15-30-300-001, 15-31-100-011 | |
| pin | OFTString | 50.0k | 1531100007, 1530300001, 1531100011 | |
| dashpin | OFTString | 50.0k | 15-31-100-007, 15-30-300-001, 15-31-100-011 | |
| altparceln | OFTString | 50.0k | 247 254A, 246 502, 247 256A | |
| parcelyear | OFTInteger | 1 | 2021, 2021, 2021 | |
| lophousenu | OFTString | 14.4k | 81XX, 8073, 8195 | |
| lophousenb | OFTString | 157 | S, S, S | |
| lopprefixd | OFTString | 38 | S, S, W | |
| lopstreetn | OFTString | 5.5k | KISHWAUKEE, KISHWAUKEE, KISWAUKEE | |
| lopstreets | OFTString | 79 | RD, RD, RD | |
| loppostdir | OFTString | 21 | 1B, DR, ST | |
| lopcommuni | OFTString | 20 | STILLMAN VLY, CHERRY VALLEY, ROCKFORD | |
| legaldesc | OFTString | 50.0k | E3/4 NE1/4 NE1/4 SEC: 31 TWP: 043 RANGE: 001 ACRES: 30.00, SHERIDAN GROVE SUB PT NW1/4 SE1/4 SEC 25-43-1 LOT 29, S1/2 SW1/4 NE1/4 SEC: 31 TWP: 043 RANGE: 001 ACRES: 20.00 | |
| townshipna | OFTString | 14 | ROCKFORD, ROCKFORD, ROCKFORD | |
| ownerlastn | OFTString | 29.5k | RHODA FEECE FARMS LP, WARNER, KISHWAUKEE COMMUNITY PRESBYTERIAN CHURCH | |
| ownerfirst | OFTString | 50.0k | BRENT W & MARK J, VAN D & BEVERLY, MICHAEL G MEGAN K & KEVIN M | |
| ownermiddl | OFTString | 68 | M, H, D | |
| ownersuffi | OFTString | 61 | TRUSTEE, TRUSTEES, TRUSTEES | |
| owneraddre | OFTString | 50.0k | 1700 HUBBARD DR, 4682 STILLMAN RD, 8195 KISHWAUKEE RD | |
| owneradd_1 | OFTString | 1.4k | 5721 CONDON ROAD, 5721 CONDON ROAD, 60 AIRPORT DR | |
| ownercity | OFTString | 1.3k | BATAVIA, STILLMAN VLY, STILLMAN VALLEY | |
| ownerstate | OFTString | 56 | IL, IL, IL | |
| ownerzip | OFTString | 2.4k | 60510, 61084, 61084 | |
| taxpayerla | OFTString | 28.7k | RHODA FEECE FARMS LP, WARNER, RHODA FEECE FARMS LP | |
| taxpayerfi | OFTString | 50.0k | BRENT W & MARK J, VAN D & BEVERLY, MICHAEL G MEGAN K & KEVIN M | |
| taxpayermi | OFTString | 65 | R, M, H | |
| taxpayersu | OFTString | 56 | TRUSTEE, TRUSTEES, TRUSTEES | |
| taxpayerad | OFTString | 50.0k | 1700 HUBBARD DR, 4682 STILLMAN RD, 1700 HUBBARD DR | |
| taxpayer_1 | OFTString | 1.3k | 5721 CONDON ROAD, 5721 CONDON ROAD, 60 AIRPORT DR | |
| taxpayerci | OFTString | 1.3k | BATAVIA, STILLMAN VLY, BATAVIA | |
| taxpayerst | OFTString | 53 | IL, IL, IL | |
| taxpayerzi | OFTString | 2.4k | 60510, 61084, 60510 | |
| optout | OFTString | 1 | Y, Y, Y | |
| globalid | OFTString | 50.0k | {C4435135-10EC-4731-902C-CEF21E01823B}, {6757BCC6-E1FB-4702-B6C8-A0E99BA3D252}, {4D9C80C9-E8B0-48BA-B768-7BCA4C4BAC7F} | |
| ownerlastc | OFTString | 3.2k | 05/27/2020, 08/27/2002, 05/27/2020 | |
| area | OFTReal | 50.0k | 1232717.201954, 2945204.01095, 616041.8646 | |
| len | OFTReal | 50.0k | 4733.321127, 7678.471814, 3639.139969 |
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.