Water Data for the Nation

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Scheduled Maintenance Notice
USGS will be performing maintenance on the time series data processing system beginning at 09:00 EDT on September 10, 2026. During this period, delivery of the latest time series data will be delayed. The maintenance is expected to finish within 2 hours, after which all backlogged time series data will be processed and delivered to WDFN web portals and APIs.

Browse monitoring locations within Willacy County, Texas

1218801Laguna Madre ES Line 188 Site 01 - USGS-263613097220100
1218802Laguna Madre ES Line 188 Site 02 - USGS-263532097242800
1218803Laguna Madre ES Line 188 Site 03 - USGS-263516097252300
1219401Laguna Madre ES Line 194 Site 01 - USGS-263354097163300
1219402Laguna Madre ES Line 194 Site 02 - USGS-263344097200500
1219403Laguna Madre ES Line 194 Site 03 - USGS-263331097242100
1219404Laguna Madre ES Line 194 Site 04 - USGS-263323097253400
1220301Laguna Madre ES Line 203 Site 01 - USGS-263115097213100
1220302Laguna Madre ES Line 203 Site 02 - USGS-263037097232800
1290290Laguna Madre ES Line 902 Site 90 - USGS-263415097144000
Arroyo Colorado nr mouth nr Arroyo City, TX - USGS-08470990
City of Lyford - USGS-948489245000300
City of Lyford AS - USGS-948489245000349
City of Raymondville - USGS-948489245000100
City of Raymondville AG - USGS-948489245000199
E Main Drain at Hwy 77 nr Yturria, TX - USGS-08212985
E Main Drain nr San Perlita, TX - USGS-08212990
Hidalgo-Willach Drain at Hwy 1420 nr Willamar, TX - USGS-262619097365001
Hidalgo-Willacy County Drain nr Lyford, TX - USGS-262324097450701
IT S1080029C Main Branch NE Canal nr Lasara TX - USGS-262702097541297
IT S2450001A Raymondville Res nr Raymondville TX - USGS-262930097471199
IT S2450003A TR nr Lyford TX - USGS-262440097473899
IT S2450006A Sebastian Res nr Sebastian TX - USGS-262025097474399
La Sal Vieja (E) nr Hargill, TX - USGS-263128097523501
La Sal Vieja (W) nr Hargill, TX - USGS-263211097550301
Laguna Madre ES nr Chubby Island - USGS-262926097234101
Laguna Madre at N edge Laguna Atascosa NWR, TX - USGS-262449097212101
N Floodway at Hwy 1420, Santa Monica, TX - USGS-08470225
Port Mansfield PUD - USGS-948489245000400
Port Mansfield PUD AG - USGS-948489245000499
Rudman Tract (73abcd-85) nr Hwy 106 nr Hargill, TX - USGS-263153097575501
Rudman Tract nr Hwy 186 nr Hargill, TX - USGS-263156097572001
Sebastian MUD - USGS-948489245000600
Unm Pond at Lyford, TX - USGS-262435097471401
Unm Resaca at Hwy 497 nr Port Mansfield, TX - USGS-08213000

Important

This list uses USGS Water Data OGC APIs. View the Swagger documentation for this API