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Township, Range and Section

The grid that shows the township, range and section information for Los Angeles County taken from the PLSS.

The Public Land Survey System (PLSS) typically divides land into 6-mile-square townships, which is the level of information included in the National Atlas. Townships are subdivided into 36 one-mile- square sections. A section is an area normally one mile square, containing 640 acres(2.6 km²). Sections can be further subdivided into quarter sections, quarter-quarter sections, or irregular government lots. Normally, a permanent monument, or marker, is placed at each section corner. Source: U.S. Department of the Interior / Bureau of Land Management / Public Land Survey System; last update: 2007.

PLSS Illustration:

section_township_range.gif data_portal_uploads-township_range_section

Illustrated by The National Atlas of the United States of America® of the United States Department of the Interior

Data can be downloaded here:

Download Shapefile (.zip)

Using GIS Data on this site

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GIS data available on this website is provided AS IS - please read the GIS Data Portal Terms of Use

Data Field Descriptions
  • SECTION - Section number; example "27" (less than 36)
  • MERIDIAN - Name of the baseline and meridian; example "SBB&M"
  • TOWNSHIP - Township; example "08N" (includes ordinal direction; N or S)
  • RANGE - Range; example "13W" (includes ordinal direction; E or W)
  • TOWN_RAN - Both Township and Range; example "08N 13W"
  • SECTIONTEX - Section text; example "SEC 27"
  • TRTEXT - Township and Rangle text; example "T08N R13W"


GIS Source Information
Database Name: eGIS_Basemaps_Grids
Feature Dataset Name (if applicable):
Reference Date: 2007
Accuracy: Parcel
Update Frequency: As Needed
Access Constraints:None

Contact Information
Nick Franchino
GIS Manager
County of Los Angeles
Regional Planning Department
320 W. Temple St.
Mailstop Room 1383
Los Angeles, CA 90012

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