Skip Header

State Legislative District Maps File Naming Convention

Component ID: #ti124908033

The file names for the State Legislative District Reference Maps are composed as follows:



<bdy_id> = 4 character alphanumeric code indicating boundary delineation cycle

  • 'DC10' indicates boundaries delineated as a result of the 2010 Census
  • 'PP14' indicates boundaries delineated for the 2014 election cycle
  • 'PP16' indicates boundaries delineated for the 2016 election cycle
  • 'PP18' indicated boundaries delineated for the 2018 election cycle

<type> = 4 character SLD type indicator

  • 'SLDU' indicates Upper Chamber
  • 'SLDL' indicates Lower Chamber

<ss> = 2 digit state code

<ddd> = 3 digit SLD code

<###> = map sheet number

  • '000' = Index sheet
  • '001' – '999' = Map sheets

Example file names:

DC10SLDL09001_001.pdf = Connecticut State House District 1, map sheet 1

DC10SLDU17055_000.pdf = Illinois State Senate District 5, index sheet

DC10SLDU17055_004.pdf = Illinois State Senate District 5, map sheet 4

NOTE:  For Puerto Rico only, when ‘SP’ is included as part of the filename (DC10SLDUSP and DC10SLDLSP), it indicates the Spanish version of the map.

  Is this page helpful?
Thumbs Up Image Yes    Thumbs Down Image No
Comments or suggestions?
No, thanks
255 characters remaining
Thank you for your feedback.
Comments or suggestions?
Back to Header