46 attribute fields, profiled from the October 2022 vintage.
Columns in Union County
| Field | Type | Filled | Distinct | Example values |
|---|---|---|---|---|
| PARCEL_ID | OFTString | 12.5k | 03-10-386-007, 03-10-389-008, 02-01-100-004 | |
| SITUS | OFTString | 8.0k | 106 E PINE ST, 45 E PINE ST, 50 HWY 145 S | |
| ADDR_NUMBE | OFTString | 1.7k | 106, 45, 50 | |
| STREET_PRE | OFTString | 21 | E, E, HWY | |
| STREET_NAM | OFTString | 797 | PINE, PINE, 145 | |
| STREET_SUF | OFTString | 4 | S, S, S | |
| STREET_TYP | OFTString | 32 | St, St, St | |
| SITUS_CITY | OFTString | 12 | ALTO PASS, ALTO PASS, JONESBORO | |
| SITUS_ZIP | OFTString | 12 | 62905, 62905, 62952 | |
| ADDR_SEC_U | OFTString | 4 | APT 1, # 55, APT 6 | |
| OWNER | OFTString | 7.7k | STONE BRIAN, CHAPMAN JOHN R, USA | |
| LAND_USE_C | OFTString | 14 | 0040, 0040, 0090 | |
| LAND_US_01 | OFTString | 3 | Residential, Residential, Commercial | |
| LAND_COVER | OFTString | 11.9k | {"22": 396}, {"22": 404}, {"21": 14, "22": 2, "41": 293, "43": 36, "81": 25} | |
| CROP_COVER | OFTString | 10.0k | {"122": 0.15}, {"122": 0.15}, {"5": 0.1, "121": 0.77, "141": 16.73, "176": 0.19} | |
| MUNI_ID | OFTInteger64 | 20 | 1928429, 1928429, 1928429 | |
| SCHOOL_DIS | OFTInteger64 | 8 | 1710570, 1710570, 1710570 | |
| ACREAGE | OFTReal | 2 | 0.0, 0.0, 0.0 | |
| ACREAGE_AD | OFTReal | 9.1k | 0.146568686580612, 0.150747069810058, 232.328110676959 | |
| MKT_VAL_LA | OFTReal | 1.2k | 743.0, 3462.0, 0.0 | |
| MKT_VAL_BL | OFTReal | 4.1k | 0.0, 18347.0, 0.0 | |
| ZIP_CODE | OFTString | 13 | 62920, 62905, 62905 | |
| LEGAL_DESC | OFTString | 11.6k | LOT 6 BLK 10 ORIGINAL PLAT OF ALTO PASS. MH PT 14-311, S1 T11 R3W PT SW NW., S2 T11 R3W SW NE PT SE NE | |
| PLSS_SECTI | OFTString | 36 | 10, 10, 01 | |
| PLSS_TOWNS | OFTString | 4 | 11S, 11S, 11S | |
| PLSS_RANGE | OFTString | 5 | 2W, 2W, 3W | |
| MAIL_ADDRE | OFTString | 7.4k | 735 HUNTER RD, 45 E PINE ST, FOREST SERVICE | |
| MAIL_AD_01 | OFTString | 1.4k | 50 HWY 145 S, 50 HWY 145 S, 125 N ELM ST | |
| MAIL_AD_02 | OFTString | 508 | GLENVIEW IL 60025, ALTO PASS IL 62905, HARRISBURG IL 62946 | |
| OWNER_OCCU | OFTString | 3 | F, T, T | |
| USPS_RESID | OFTString | 3 | T, T, ? | |
| CENSUS_TRA | OFTInteger64 | 5 | 950200, 950200, 950200 | |
| CENSUS_BLK | OFTInteger | 4 | 1, 1, 2 | |
| CENSUS_BLO | OFTInteger | 536 | 1016, 1021, 2002 | |
| AREA_METER | OFTReal | 12.8k | 593.131344666794, 610.040345635782, 71966.1078852776 | |
| FLD_ZONE | OFTString | 5 | {A}, {A}, {A} | |
| ZONE_SUBTY | OFTString | 4 | {NULL}, {NULL}, {NULL} | |
| PLACE_GNIS | OFTInteger64 | 8 | 2397948, 2397948, 2397948 | |
| ALT_ID_1 | OFTString | 12.4k | 14-00-10-935, 14-00-10-957-A, 10-01-06-635-B | |
| ELEVATION | OFTString | 12.8k | ||
| ROBUST_ID | OFTString | 12.8k | AABDHWd9SJTKWMcK, AABDHTV_NhW5zccH, AABDHd_EXw7Shymn | |
| CALC_ACREA | OFTReal | 12.8k | 0.146568686580611, 0.150747069810058, 17.7835449195309 | |
| COUNTY_NAM | OFTString | 1 | Union, Union, Union | |
| COUNTY_FIP | OFTInteger64 | 1 | 17181, 17181, 17181 | |
| STATE_ABBR | OFTString | 1 | IL, IL, IL | |
| CTY_ROW_ID | OFTInteger64 | 12.8k | 5512, 5490, 3372 |
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.