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Lake Pontchartrain Water Level Today

Daily level, changes and history for Lake Pontchartrain, on the estuary (connected to the Gulf through the Rigolets and Chef Menteur Pass) in Louisiana.

Updated · Source: USGS 301200090072400 Provisional

Water level Provisional

0.97ft

msl · 9:00 AM CST, Nov 9, 2026

  • −0.03 ftin 24 h−1.40 ft in 7 days−1.19 ft in 30 days
024024
  • 1 yr ago

Is Lake Pontchartrain full?

Lake Pontchartrain is a brackish estuary open to the Gulf of Mexico, so its level moves with tides, wind and river inflow and there is no full pool. The page compares the level with past years. It is 0.52 ft higher than a year ago (0.45 ft on Nov 9, 2025).

Lake Pontchartrain level history

View data table
DateLevel (ft)
Nov 9, 20260.97
Nov 8, 20260.87
Nov 7, 20261.02
Nov 6, 20261.10
Nov 5, 20261.28
Nov 4, 20261.64
Nov 3, 20262.20
Nov 2, 20262.37
Nov 1, 20261.89
Oct 31, 20261.59
Oct 30, 20261.29
Oct 29, 20261.18
Oct 28, 20261.18
Oct 27, 20261.35
Oct 26, 20261.36
Oct 25, 20261.40
Oct 24, 20261.11
Oct 23, 20260.88
Oct 22, 20260.84
Oct 21, 20260.96
Oct 20, 20261.08
Oct 19, 20261.18
Oct 18, 20261.04
Oct 17, 20260.56
Oct 16, 20260.82
Oct 15, 20260.61
Oct 14, 20260.63
Oct 13, 20260.66
Oct 12, 20260.79
Oct 11, 20261.41
Oct 10, 20262.16
  • Lake Pontchartrain level
Source: USGS · Daily averages since 2016

Lake Pontchartrain on Nov 9 in past years

Lake Pontchartrain water level on Nov 9 in past years
YearLevel (ft)vs today
2026today0.97—
20250.45−0.52
20242.12+1.15
20230.73−0.24
20220.95−0.02
20210.34−0.63
20201.62+0.65
20190.75−0.22
20180.64−0.33
20170.30−0.67
20162.17+1.20

Today’s level is the highest for this date since 2024.

Lake facts

Highest since 2016
5.29 ftAug 30, 2021
Lowest since 2016
−1.76 ftFeb 1, 2026
Data since
May 5, 2016
River
estuary (connected to the Gulf through the Rigolets and Chef Menteur Pass)
Gauge location
30.1996, −90.1228

Records cover May 5, 2016 to today (daily averages).

Lake Pontchartrain map and depth

  • Level gauge
Shoreline © OpenStreetMap contributors · Open the full map
Surface area
about 407,750 acresmeasured on the OpenStreetMap outline

The outline shows the mapped shoreline, not today’s water line: when the lake is low, the water stands back from it.

Quick answers

Is Lake Pontchartrain rising or falling?
It is falling: −1.40 ft in the last 7 days and −0.03 ft in 24 hours, to 0.97 ft on 9:00 AM CST, Nov 9, 2026 (US Geological Survey).
What is the highest level in our data?
Lake Pontchartrain reached 5.29 ft on Aug 30, 2021. The lowest was −1.76 ft on Feb 1, 2026 (USGS data since 2016; older records are not in this data set).
How much has Lake Pontchartrain changed in the last year?
In the last 12 months it ranged from −1.76 ft (Feb 1, 2026) to 2.46 ft (Oct 9, 2026), a swing of 4.22 ft.
How often is this page updated?
This page is updated several times a day with the latest reading from US Geological Survey. The last reading is from 9:00 AM CST, Nov 9, 2026.

Where this data comes from

Reservoir gauge 301200090072400 of the US Geological Survey (waterdata.usgs.gov). Recent readings are provisional and may be revised. Weather from the National Weather Service.

Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.