Field dictionary

GEOID22005

Columns in Ascension Parish

Field	Type	Filled	Distinct	Example values
parcelnumb	OFTString	98%	50.0k	20044447, 20008143, 20021724
parcel_id	OFTString	52%	29.5k	20008143, 20021724, 20008118
pid	OFTString	52%	29.5k	20008143, 20021724, 20008118
map_no	OFTString	52%	29.5k	20008143, 20021724, 20008118
owner	OFTString	52%	26.9k	MILLER-DOYLE COMPANIES INC, AIME, BETSY L BLALOCK, DIMAIO, DONNA B
mail_addr1	OFTString	52%	27.2k	PO BOX 88 LIVINGSTON, LA 70754, JIMMY W AIME JR 19055 HWY 22 MAUREPAS, LA 70449, RICHARD L BUHLER JR 10431 MCCULLOUGH RD ZACHARY, LA 70791
situs	OFTString	51%	27.5k	TONY ST, TONY ST, TONY ST
legal	OFTString	52%	29.5k	100% INT IN: TRACT 448 BLIND RIVER CAMPSITES, 3RD FILING, 3.81 AC. TRACT 462 BLIND RIVER CAMPSITES, THRID FILING, TRACT 424 BLIND RIVER CAMPSITES, 3RD FILING (4.47 AC.)
mkttot	OFTString	52%	5.6k	3,700.00, 3,800.00, 4,100.00
assdval	OFTString	52%	5.4k	370.00, 380.00, 410.00
o_saledate	OFTString	46%	5.4k	6/6/2019, 8/3/2004, 3/22/2017
saleprice	OFTString	46%	4.1k	0, 15,500, 0
salebook	OFTString	46%	25.0k	971608, 583023, 919834

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.