GET /collections/monitoring-locations/items

usgs.gov:usgs-water-data-api

Summary: Query monitoring locations
Operation ID: getMonitoringLocations
Auth: unknown
Description

Returns monitoring location features. Use to find monitoring sites by location, state, county, HUC, site type, etc.

Parameters (15)

agency_code (string, query, optional)

Filter by agency code

bbox (array, query, optional)

Bounding box for spatial filtering (minLon,minLat,maxLon,maxLat)

county_code (string, query, optional)

Filter by county code

county_name (string, query, optional)

Filter by county name

cursor (string, query, optional)

Cursor for pagination (from previous response)

f (string, query, optional, default: json)

Output format

Constraints: {'enum': ['json', 'html', 'jsonld', 'csv']}

hydrologic_unit_code (string, query, optional)

Filter by hydrologic unit code (HUC)

limit (integer, query, optional, default: 100)

Maximum number of items to return

Constraints: {'minimum': 1, 'maximum': 10000}

monitoring_location_name (string, query, optional)

Filter by monitoring location name

monitoring_location_number (string, query, optional)

Filter by monitoring location number (site number)

offset (integer, query, optional, default: 0)

Offset for pagination

Constraints: {'minimum': 0}

site_type (string, query, optional)

Filter by site type

site_type_code (string, query, optional)

Filter by site type code

state_code (string, query, optional)

Filter by state code (FIPS code)

state_name (string, query, optional)

Filter by state name

Examples (1)

TitleTypeURLAction
Query monitoring locations probe-gate https://api.waterdata.usgs.gov/ogcapi/v0/collections/monitoring-locations/items

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-03-23 10:48:48.500332 200 899ms
2026-03-20T03:18:55.041858 200 839ms

Response Changes

WhenOldNew
2026-03-23 10:48:48.500332 127123dd9f40 142e6b17b6e9