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Data Used in Redistricting

Census Data

 

Election Data

Election and voter registration information are provided by the Colorado Secretary of State and disaggregated by legislative staff. "Disaggregated" refers to the allocation of precinct-level data to individual census blocks within the precinct. Disaggregation is done by formula and provides an estimate of block-level election returns and voter registrations, not actual data.

 

Precinct Changes from 2008 to 2010

Disaggregation Formula

Column Heading Description

Public Access to Data

 

PLANS

House and Senate   Congressional

Commission Preliminary Plans

Commission Final Plans

 

Redistricting Preliminary Plans

Redistricting Final Plans

House and senate map image   Map of congressional lines

 


Public Access to Redistricting Database

1. The redistricting database made available by the Legislative Council pursuant to sections 8 and 9 of House Bill 10-1210 is open to the public in the manner specified in this policy. The database consists of three parts:

(a) The map of Colorado provided by the U.S. Census Bureau, known as TIGER 2010;

(b) Population information provided by the U.S. Census Bureau and conforming to section 2-2-901, C.R.S.; and

(c) Election and voter registration information provided by the Colorado Secretary of State and disaggregated by legislative staff. "Disaggregated" refers to the allocation of precinct-level data to individual census blocks within the precinct. Disaggregation is done by formula and provides an estimate of block-level election returns and voter registrations, not actual data.

This database is being used by the General Assembly for congressional redistricting and by the Colorado Reapportionment Commission for state House and Senate redistricting.

2. This information is accessible on the Internet as follows:

(a) The map may be accessed from the Census Bureau web site at http://www.census.gov.

(b) The population information may be accessed from the Census Bureau web site at http://www.census.gov.


Important Note: In order to use this electronic information, you will need your own mapping software. The General Assembly, under license agreements with its software provider, can not furnish you with mapping software.


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