69 attribute fields, profiled from the September 2020 vintage.
Columns in Rock Island County
| Field | Type | Filled | Distinct | Example values |
|---|---|---|---|---|
| objectid_1 | OFTInteger | 50.0k | 64854, 64863, 64864 | |
| objectid | OFTInteger | 50.0k | 65882, 65891, 65892 | |
| rico_parce | OFTString | 50.0k | 181-R-5, 18GIS-X-18, 18GIS-X-19 | |
| shape_leng | OFTReal | 50.0k | 12101.730422, 19704.557748, 2984.972565 | |
| twp_prcl | OFTString | 50.0k | 181-R-5, 18GIS-X-18, 18GIS-X-19 | |
| new_pin | OFTString | 50.0k | 1927300001, 1927500002, 1934500002 | |
| name | OFTString | 48.1k | WALTER MARINE ENT INC, FEDERAL, FEDERAL | |
| fname | OFTString | 28.1k | MARINE ENT INC, RICHARD P, WILLIAM H/MONA L | |
| lname | OFTString | 14.8k | WALTER, FEDERAL, FEDERAL | |
| prp_addr | OFTString | 50.0k | 18010 350TH ST W, 34020 176TH AVE W, 18720 350 ST W | |
| prp_ctyst | OFTString | 22 | NEW BOSTON IL, NEW BOSTON IL, NEW BOSTON IL | |
| prp_zip | OFTString | 23 | 00000, 00000, 00000 | |
| bill_adr | OFTString | 43.5k | 200 BENTON ST, 1640 58TH ST, 28316 120TH AVE W | |
| bill_ctyst | OFTString | 1.0k | VALLEY PARK MO, NEW BOSTON IL, ILLINOIS CITY IL | |
| bill_zip | OFTString | 1.3k | 63088, 00000, 00000 | |
| zonecde5 | OFTString | 54 | AG1?, AG1?, AG1? | |
| propcls | OFTString | 15 | Q, F, F | |
| asm_acre | OFTReal | 4.9k | 74.9, 0.0, 0.0 | |
| gisacre | OFTReal | 50.0k | 74.92119, 267.837429, 6.221981 | |
| twp_code | OFTString | 134 | 1801, 1802, 1802 | |
| prv_cd | OFTString | 47 | 01, 00, 00 | |
| origin | OFTString | 4 | A, G, G | |
| twp | OFTString | 18 | 18, 18, 18 | |
| parcel | OFTString | 27.7k | 1-R-5, GIS-X-18, GIS-X-19 | |
| txpyr | OFTString | 33.3k | 0010105, 0000000, 0000000 | |
| tif_city | OFTString | 11 | 00, 00, 00 | |
| tif_dist | OFTString | 14 | 00, 00, 00 | |
| res_land | OFTReal | 13.4k | 50983.0, 0.0, 0.0 | |
| frm_land | OFTReal | 3.9k | 0.0, 0.0, 0.0 | |
| res_bldg | OFTReal | 34.2k | 0.0, 0.0, 0.0 | |
| frm_bldg | OFTReal | 967 | 0.0, 0.0, 0.0 | |
| exm_flag | OFTString | 2 | N, N, N | |
| frm_flag | OFTString | 2 | N, Y, Y | |
| orig_cur | OFTReal | 41.4k | 50983.0, 0.0, 0.0 | |
| orig_prv | OFTReal | 40.9k | 50983.0, 0.0, 0.0 | |
| estmkt | OFTString | 38.8k | 152964, 187447, 146166 | |
| slsyr1 | OFTReal | 53 | 0.0, 0.0, 0.0 | |
| slsamt1 | OFTReal | 4.5k | 0.0, 0.0, 0.0 | |
| own_flg | OFTString | 3 | N, N, N | |
| lgl_desc | OFTString | 50.0k | SUPVR ASST MAP LOT 300 SHT 51, SUPVR ASST MAP LOT 101 SHEET 53, SUPVR ASST MAP LOT 102 SHEET 53 | |
| cyrbuilt | OFTString | 181 | 1950, 1940, 1980 | |
| jurisd | OFTString | 16 | ROCK ISLAND COUNTY, ROCK ISLAND COUNTY, ROCK ISLAND COUNTY | |
| twp_code_1 | OFTString | 134 | 1801, 1802, 1802 | |
| cntwp | OFTString | 18 | 18, 18, 18 | |
| cntaxcde | OFTString | 46 | 01, 02, 02 | |
| ctwpnam | OFTString | 18 | DRURY TWP., DRURY TWP., DRURY TWP. | |
| rb_twpnm | OFTString | 16 | R&B - DRURY, R&B - DRURY, R&B - DRURY | |
| rb_munnm | OFTString | 15 | R&B - MUN.RYNLD, R&B - MUN.RYNLD, R&B - MUN.RYNLD | |
| mun_name | OFTString | 15 | MUN. REYNOLDS, MUN. REYNOLDS, MUN. REYNOLDS | |
| sch_nam1 | OFTString | 10 | SCHOOL-300 RKR, SCHOOL-404 MER, SCHOOL-404 MER | |
| sch_nam2 | OFTString | 5 | SCHOOL-37 E.MOL, SCHOOL-37 E.MOL, SCHOOL-37 E.MOL | |
| fpd_nam | OFTString | 17 | BUF PRAIRIE FPD, BUF PRAIRIE FPD, BUF PRAIRIE FPD | |
| air_nam | OFTString | 1 | METRO AIR AUTH., METRO AIR AUTH., METRO AIR AUTH. | |
| lib_nam | OFTString | 10 | LIBRARY-SHRRARD, LIBRARY-MILN-BH, LIBRARY-MILN-BH | |
| sant_nam | OFTString | 1 | SANI.DIST.COYCT, SANI.DIST.COYCT, SANI.DIST.COYCT | |
| ambl_nam | OFTString | 1 | ILLINI HOSPITAL, ILLINI HOSPITAL, ILLINI HOSPITAL | |
| cemt_nam | OFTString | 2 | CEMETERY-S.MOL., CEMETERY-S.MOL., CEMETERY-S.MOL. | |
| trans_nam | OFTString | 1 | METRO-TRANSIT, METRO-TRANSIT, METRO-TRANSIT | |
| rivr_nam | OFTString | 1 | RIVER CONS.DIST, RIVER CONS.DIST, RIVER CONS.DIST | |
| flood_nam | OFTString | 2 | FLOOD P.ZUMA,CC, FLOOD P.ZUMA,CC, FLOOD P.ZUMA,CC | |
| spec_nm1 | OFTString | 8 | MULTI-TWP.BP-DR, MULTI-TWP.BP-DR, MULTI-TWP.BP-DR | |
| spec_nm2 | OFTString | 2 | BH-RURAL MTAD, BH-RURAL MTAD, BH-RURAL MTAD | |
| pinnum | OFTString | 50.0k | 1935100001, 1935100003, 1935200002 | |
| modlnam | OFTString | 68 | 1.0 Story, 2.0 Story, 1.0 Story | |
| yrbuilt | OFTString | 181 | 1950, 1940, 1980 | |
| garsqft | OFTReal | 1.2k | 0.0, 0.0, 0.0 | |
| totsqft | OFTReal | 4.5k | 0.0, 0.0, 0.0 | |
| shape__are | OFTReal | 50.0k | 3263567.054443, 11666998.416504, 271029.471436 | |
| shape__len | OFTReal | 50.0k | 12101.730422, 19704.557749, 2984.972565 |
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.