Accurate GIS is more important than EVER IGIC Conference Thursday, May 10, 2018 Charline Avey as LUCA Carol Rogers as The Census Lady

How does the census count people? It’s all about the address

Census 2020 starts now Geography is KEY to the successful conduct of the Census Local Update of Census Addresses begins NOW

63.5% 31,956 Census - number of addresses 3,104,701 Ungeocoded addresses in file 51,980 Geocoded with IDSI2018_03 Composite 31,956 Matched w Spatial Join 20ft to IDSIAddressPoints 1,971,361 Percent match with IndianaMap 63.5%

Census Geocoder Analyze addresses against Master Address File and TigerLine files One line Address Parsed Address Batch Addresses Provides standardization for up to 10,000 address in batch mode. Minimum requirements for processing Record id, full address, city,state,zipcode(not needed) Very fast Output helpful for making sure Census has your points and centerlines

Export File data LINE_NUMBER INPUT_ADDRESS MATCH_INDICATOR – Match, No_Match INTERPOLATED_LONGITUDE_INTERPOLATED_LATITUDE MATCH_TYPE – Exact, Not Exact TIGER_OUTPUT_ADDRESS STATE TIGERLINE_ID TIGERLINE_SIDE BLOCK COUNTY TRACT

Can Identify Addresses that don’t have a street centerline Identify streets names that do not match Identify streets that don’t have address ranges Assign Latitude/Longitude to addresses. (They are along centerlines)

Assign Latitude/Longitude to addresses Assign Latitude/Longitude to addresses. (They are along centerlines) These are Matched but Not Exact placement

MAF – Most Valuable DPVCONFIRM- Yes, No, D=Missing unit CERTIFIED-C ERROR List of methods used to change address LEFTOVER ADDRTYPE-R=Residential,C=Commercial,M=Mix Real Property Data Parcel Table: property class codes: 500 series, some 400 Dwelling Table: Occupancy Code Census Dropbox folder "AddrP_Chk201802.gdb“ GeoCR Census Geocoder export matched to IDSI2018_03. Addresspoints GeoMAF MAF Geocoder export matched to IDSI2018_03. Addresspoints

Questions?