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River

Los Angeles River

77 km from source to mouth · United States.

United StatesUnited StatesFlows into Pacific Ocean

Follow the riverMonth by month

SourceMouthLos AngelesGlendale
The river and every tributary in its basin, drawn from RiverATLAS (CC BY 4.0).

In numbers

Length

77km

Average flow

6.0m³/s

Basin

2,142km²

Drop

242m

from 242 m to 0 m

Country

1

The journey

From source to mouth

77 km of river and 38 stops on the way: 19 towns and cities on its banks, dams, bridges and the tributaries that feed it.

242 m0 m
Sourceat 242 m0 km
Reseda65,000 people7 km
Studio City34,034 people21 km
Universal City105,000 people25 km
Glendale201,020 people33 km
Silver Lake Reservoir0.3 km²36 km
Los Angeles3,820,914 people45 km
Boyle Heights92,785 people46 km
Rio Hondotributary61 km
Paramount55,412 people62 km
Pacific Oceanat 0 m77 km
020406077 km
  1. 0 kmSourceat 242 m
  2. 1 kmCanoga Park60,578 people
  3. 4 kmWinnetka47,000 people
  4. 7 kmReseda65,000 people
  5. 11 kmEncino44,581 people
  6. 16 kmSherman Oaks52,677 people
  7. 21 kmStudio City34,034 people
  8. 25 kmUniversal City105,000 people
  9. 27 kmTujunga Washtributary
  10. 30 kmRiverside-Zoo Drive Bridge
  11. 33 kmGlendale201,020 people
  12. 34 kmLa Kretz Bridge
  13. 34 kmVerdugo Washtributary
  14. 36 kmGlendale-Hyperion Bridge
  15. 36 kmSilver Lake Reservoir0.3 km²
  16. 36 kmAtwater Village15,455 people
  17. 37 kmFletcher Drive Bridge
  18. 41 kmArroyo Secotributary
  19. 42 kmNorth Broadway Bridge
  20. 42 kmNorth Spring Street Bridge
  21. 42 kmNorth Main Street Bridge
  22. 44 kmCesar Chavez Avenue Viaduct
  23. 45 kmFirst Street Viaduct
  24. 45 kmLos Angeles3,820,914 people
  25. 45 kmFourth Street Viaduct
  26. 46 kmSixth Street Viaduct
  27. 46 kmSeventh Street Viaduct
  28. 46 kmBoyle Heights92,785 people
  29. 47 kmOlympic Boulevard Viaduct
  30. 48 kmWashington Boulevard Bridge
  31. 53 kmMaywood27,888 people
  32. 53 kmCommerce13,081 people
  33. 54 kmBell36,205 people
  34. 56 kmBell Gardens43,106 people
  35. 57 kmCudahy24,311 people
  36. 61 kmRio Hondotributary
  37. 62 kmParamount55,412 people
  38. 63 kmEast Rancho Dominguez15,135 people
  39. 77 kmLong Beach474,140 people
  40. 77 kmPacific Oceanat 0 m

Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.

River in California, United States

At the mouth it carries 6.0 m³/s on average: an Olympic pool every 417 seconds. It drops from 242 m to 0 m, 3.1 m per kilometre on average. Its basin covers 2,142 km², about the size of KM. 4.4 million people live in it. Highest water: February; lowest: from July to October. Its dams hold back little of its water (5.7% of a year's flow).

Read more on Wikipedia

Where to start

  • Los AngelesLargest city on its banks · 3,820,914 people
  • Jack Northrop Field Hawthorne Municipal Airport (HHR)Nearest airport with scheduled flights, 17 km from the cityCar hire at LAX airport (Los Angeles)Discover Cars · Affiliate link
  • On the water17 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • Kayak and canoe4 put-ins and rapids mapped (OpenStreetMap)
  • From April to AugustThe best months to visit

Los Angeles River, month by month

Highest water: February

Lowest water: from July to October. Best months to visit: from April to August.

35
13°83 mmJan
41
14°82 mmFeb
35
15°67 mmMar
17
16°26 mmApr
5.8
18°6 mmMay
1.8
20°1 mmJun
1.2
23°0 mmJul
1.2
23°4 mmAug
1.5
22°8 mmSep
1.8
20°8 mmOct
10
16°42 mmNov
19
14°52 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 1.2 m³/s in the lowest month to 41 m³/s in the highest. An estimate: the monthly flow is modelled from the lowest and highest months of WaterGAP (RiverATLAS, 1971–2000) and the rain and snow along the river (WorldClim). Dams change the real rhythm. The chip is the average air temperature; below it, the month's rain.

Plan the trip

Plan the trip: boat trips, a bed by the river, a car

Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.

The basin

Los Angeles River: the basin in numbers

2,031 km² of land send their water to this river. This is what lives on it.

Lightly regulatedReservoirs can hold 5.7% of a year's flow.
  • 4.4millionpeople live in the basin
  • 2,169/km²people per km²
  • 458maverage altitude of the basin
  • 450mmof rain a year (basin average)
  • 16.5°Caverage air temperature
  • 6%protected areas
  • 0.1%covered by lakes
  • 0.0km³held in reservoirs

What covers the basin

  • 33% Forest
  • 1% Cropland
  • 69% Towns and cities

RiverATLAS (HydroATLAS v1.0, CC BY 4.0): land cover, people, protected areas, glaciers and dams over the whole basin upstream of the mouth.

Along the river

Los Angeles River: what you find on the way

  • 13DamsSepulveda Dam, outlet gates, spillway and 10 more
  • 3Weirs
  • 2Waterfalls
  • 4Rapids
  • 8Boat rampsLaunch Ramp and 7 more
  • 5Ferry piersCatalina Express Long Beach Downtown Landing, Catalina Express, Queen Mary and 2 more
  • 2MarinasLong Beach Shoreline Marina, Rainbow Harbor
  • 2Boat rentals

From OpenStreetMap, within 1.4 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Los Angeles River in our other atlases

What our sister atlases know about the waterfalls on this river, the lakes it flows through, the beaches at its mouth, the mountains where it rises and the islands off its mouth.

  • 1lake on its wayLakeyas
  • 12beaches at the mouth and on the banksCoastya
  • 11mountains at the sourcePeakyas
  • 5islands off the mouthIslandyas

Lakes and reservoirs (1)

Lakes it flows through, by Lakeyas

  1. Silver Lake Reservoirkm 420.3km²

Lakeyas is coming soonOpen Lakeyas ↗

Beaches (12)

At the mouth (25 km) and on the banks, by Coastya

  1. Alamitos Bay Beach6.2 km away20.6°C
  2. Torrance County Beach19 km away20.2°C
  3. Long2.1 km away20.6°C
  4. Rat Beach19 km away20.2°C
  5. Surfside Beach11 km away20.6°C
  6. Upper Beach17 km away20.5°C
  7. Huntington City Beach22 km away20.7°C
  8. Cabrillo Beach9.7 km away20.5°C

4 more on CoastyaOpen Coastya ↗

Mountains at the source (11)

Within 15 km of the source, by Peakyas

  1. Rocky Peak11 km away828m
  2. Saddle Peak14 km away855m
  3. Mission Point14 km away · prominence 56 m845m
  4. Chatsworth Peak7.7 km away705m
  5. Eagle Rock10 km away596m
  6. Oat Mountain15 km away · prominence 593 m
  7. Calabasas Peak10 km away
  8. Garden of the Gods8.8 km away

3 more on PeakyasOpen Peakyas ↗

Islands off the mouth (5)

Within 30 km of the mouth, by Islandyas

  1. Terminal Island4.7 km away12km²
  2. Pirate's Lair on Tom Sawyer Island26 km away
  3. Deadman's Island7.5 km away
  4. Island Grissom1.5 km away
  5. Island White3.7 km away

Islandyas is coming soonOpen Islandyas ↗

From space

The source and the mouth, seen from orbit

Los Angeles River: satellite view of the source
The source14 km across
Los Angeles River: satellite view of the mouth
The mouth10 km across

Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), CC BY 4.0. The glowing line is the river as drawn by RiverATLAS.

Tributaries

Where it flows, and what flows into it

Tributaries (11)

Also: Rio Hondo, Tujunga Wash, Arroyo Seco, Compton Creek, Pacoima Wash, Bull Creek, Verdugo Wash, Aliso Creek, Arroyo Calabasas, Bell Creek, Browns Canyon Wash

Where these numbers come from

Name, length, placesWikidata (Q542965) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth given by Wikidata
FlowWaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0
Climate along the riverWorldClim (RiverATLAS), 1970–2000 · CC BY 4.0
Towns, bridges, damsWikidata · CC0; GeoNames · CC BY 4.0
Along the river© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Our other atlasesLakeyas, Coastya, Peakyas, Islandyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; HydroLAKES · CC BY 4.0; NOAA OISST

Every source and licence is on the data sources page.

The family

Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?

Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit
lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit
mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit
waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Coming soonVisit
islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.Coming soonVisit
riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.You are here
canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit