Water Resources of St. Landry Parish, Louisiana

Fact Sheet 2021-3026
Prepared in cooperation with the Louisiana Department of Transportation and Development
By:  and 



Information concerning the availability, use, and quality of water in St. Landry Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about 116.75 million gallons per day (Mgal/d) of water were withdrawn in St. Landry Parish: about 98.13 Mgal/d from groundwater sources and 18.62 Mgal/d from surface-water sources. Withdrawals for agricultural use, composed of general irrigation, rice irrigation, aquaculture, and livestock uses, accounted for about 90 percent (105.31 Mgal/d) of the total water withdrawn. Other categories of use included public supply, which accounted for about 8 percent of the total water withdrawn (9.77 Mgal/d), industry which accounted for about 1 percent (1.03 Mgal/d), and rural domestic which accounted for about 1 percent (0.65 Mgal/d). Water-use data collected at 5-year intervals from 1960 to 2010 and again in 2014 indicated that water withdrawals peaked in 1965 at 194.57 Mgal/d due to a large reported surface-water withdrawal of 144.00 Mgal/d for power generation that was not reported for other years.

Suggested Citation

Lindaman, M.A.., and White, V.E., 2021, Water resources of St. Landry Parish, Louisiana: U.S. Geological Survey Fact Sheet 2021–3026, 6 p., https://doi.org/10.3133/fs20213026.

ISSN: 2327-6932 (online)

ISSN: 2327-6916 (print)

Study Area

Table of Contents

  • Introduction
  • Groundwater Resources
  • Surface-Water Resources
  • References Cited
Publication type Report
Publication Subtype USGS Numbered Series
Title Water resources of St. Landry Parish, Louisiana
Series title Fact Sheet
Series number 2021-3026
DOI 10.3133/fs20213026
Year Published 2021
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Lower Mississippi-Gulf Water Science Center
Description Report: 6 p.; Data Release
Country United States
State Louisiana
County St. Landry Parish
Online Only (Y/N) N
Google Analytic Metrics Metrics page
Additional publication details