Name: County Precinct Archive 2015

Display Field: COUNTYPRECINCT

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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>A 2015 archive of county precincts for Jefferson County, Colorado. Data was captured on Wednesday, December 30, 2015.</SPAN></P><P><SPAN>County precinct boundaries and the 10-digit code names were updated during work performed by the Elections Office in the spring of 2015. Source data is the BasePoly feature class in the County's AddressStreetPolitical (ASP) database, maintained by IT Services. Therefore, note work performed by IT Services to improve the geometry of the County's road centerline network will alter precinct geometry slightly whenever a street centerline segment is also a precinct line.</SPAN></P><P><SPAN>The county precinct number is a ten-digit code conforming to a specified format:</SPAN></P><P><SPAN>DIGIT 1: FEDERAL HOUSE (CONGRESSIONAL) DISTRICT</SPAN></P><P><SPAN>DIGITS 2-3: STATE SENATE DISTRICT </SPAN></P><P><SPAN>DIGITS 4-5: STATE HOUSE DISTRICT</SPAN></P><P><SPAN>DIGITS 6-7: COUNTY CODE ("30")</SPAN></P><P><SPAN>DIGITS 8-10: UNIQUE PRECINCT IDENTIFIER (PER COLUMNS 1-7)</SPAN></P><P><SPAN>As an example, precinct 7222030005 is the 5th unique precinct serving the combination of Jefferson County (30) and the 7th Congressional district, 22nd State Senate district, and 20th State House district.</SPAN></P><P><SPAN>County precinct data, along with all core jurisdictional data pertinent to elections, is maintained in the AddressStreetPolitical (ASP) production database by IT Services via the ASP Tools. </SPAN></P><P><SPAN>Again, source data is the BasePoly feature class, a subset of all BaseLine geometry which closes upon itself to form polygonal data to which jurisdictional attributes are attached. BasePoly is an atomic-level polygonal feature class coincident with BaseLine features due to topology rules in place in the ASP database. By atomic, we mean each polygon feature carries the core political data (county precinct {with federal house, state house and state senate districts embedded within}, city code {municipal status}, city ward, city precinct, commissioner district, regional transportation district {RTD}, traffic impact fee area {TIFA}, south jeffco local improvement district) used by the Elections Office in the determination of ballot styles. </SPAN></P><P><SPAN>Whenever editing to BaseLine geometry occurs or whenever BasePoly atttribution is edited, BasePoly is dissolved for each core political component (column) by the ASP DERIVATIVE processing. In this case, CountyPrecinct results from a dissolve of basePoly's COUNTYPRECINCT column. All derivatives, like CountyPrecinct, are then re-freshed in SDEWHP by the ASP To Warehouse (ASP2WH) processing.</SPAN></P><P><SPAN>County precinct is a core component of the data utilized by IT Services, via the SCORE Split and SCORE Comparative processes, to help the Elections Office maintain County data in the State of Colorado Registration and Elections (SCORE) system.</SPAN></P><P><SPAN>Data is in State Plane Grid Coordinates, Colorado Central Zone, NAD83 (US feet). </SPAN></P></DIV></DIV></DIV>

Service Item Id: 264730ceb3fa4857b7df9caf08748df3

Copyright Text: Credit Jefferson County IT Services (GIS Services) and the Clerk and Recorder's Elections Office in any use of this data.

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