Val Swift, Hamilton County Surveyor’s Office

VOTER REGISTRATION & PRECINCT MAPPING:

WHAT DO WE HAVE TO DO?• MAINTAIN DATABASE OF REGISTERED

VOTERS (THE STATE MAINTAINS THE DATABASE)

• MAINTAIN VOTING PRECINCTS WITHIN SIZE LIMITS – BY NUMBER OF REGISTERED VOTERS, NOT POPULATION (THE COUNTY BREAKS DOWN THE NUMBERS TO REDISTRICT WHERE NECESSARY)

RULES? CONSIDERATIONS?CHALLENGES (PROBLEMS)?

• FOLLOW CENSUS BLOCK LINES• CORPORATE BOUNDARIES• CITY…. OR TOWN• “HOLY” ANNEXATIONS• LEGISLATIVE DISTRICT

BOUNDARIES• CITY/TOWN COUNCIL DISTRICTS

TOWN RULES

CITY RULES

HOLY SWISS CHEESE!

TECHNICOLOR ZIP CODES

Fishers: 5 zips

WHAT (DATA) WE HAD

• VOTER DATA

WHAT (DATA) WE DID NOT HAVE

• ADDRESS POINTS WITH WHICH TO MATCH THE VOTERS

SO…WHAT WE REALLY NEEDED WAS SOME

MORE…

NICE SHINY DATA

RELIABLE ADDRESS POINTS…

LOTS OF THEM.

DIAL 911?WELL…YES.

THE COUNTY’S 911 PROJECT INCLUDED ADDRESS POINTS FOR

APARTMENTS WHICH WAS THE DATA THAT THE PARCEL INFORMATION COULDN’T

PROVIDE

GEOCODING RESULTS• MATCHES: 153,417 94.9%• TIES: 4934 3.1%• UNMATCHED: 3229 2.0%• TOTAL: 161,580 100%

REALLY GOOD MATCHING

GREAT MATCHING

WEST…EAST…OOPS

DATA ENTRY ERRORS

ADDRESS SORTING ISSUES

911 ADDRESS TABLE:CHERRY HILL FARMS

VOTER REGISTRATION TABLE

911 ADDRESS TABLE

ANALYSIS: IT’LL WORK… IT’S (THE PROJECT) ALIVE!!

• THE NUMBERS DIDN’T COME OUT EVEN

• ADDRESS ERRORS IN VOTER DATABASE

• WHICH IS THE “CORRECT” ADDRESS• WHERE ARE SOME OF THE

“CONFLICTS” ORIGINATING

“REAL LIFE” APPLICATIONS

• REDISTRICTING (COUNTY POPULATION INCREASES MORE THAN 10,00/YR)

• ANNEXATIONS (AVERAGE 55 PER YEAR SINCE THE 2000 CENSUS)

ANNEXATIONS• 2001: 32• 2002: 45• 2003: 92• 2004: 58• 2005: 52• 2006: 52• 2007: 8 (THROUGH FEB)

ANNEXATIONS

KEY TASK: IDENTIFYING VOTERS IN NEWLY ANNEXED AREAS

• CITY/TOWN COUNCIL DISTRICT

• FOR REDISTRICTING

SOLUTIONS• REFINE THE GEOCODING

PROCESS• ESTABLISH WORKFLOWS• DETERMINE WHAT REPORTS ARE

NEEDED• TRAINING