Where can I find a map of hydroelectric power plants in the United States?

The map on this page. It plots every one of the 1,394 operating hydroelectric power plants in the US that EIA-860M reports for 2026-07, at the coordinates EIA files for each plant. It is a US map: EIA-860M covers the fifty states and DC, so a North American map including Canada and Mexico is out of scope here.

How many hydroelectric power plants are there in the US?

1,394, totalling 80 GW of nameplate capacity across 3,903 generating units in 48 states. That is the EIA-860M count for 2026-07; Conventional hydroelectric. Pumped storage is counted separately.

Are hydel plants the same as hydroelectric plants?

"Hydel" is the usual word in South Asian English for a hydroelectric plant; this page uses the US term. Either way it means a plant generating from falling or flowing water, which is what EIA files as conventional hydroelectric. Pumped storage is counted separately here, because it consumes more energy than it produces.

Is there a hydroelectric power plant near me?

Pick your state from the list below to get the hydroelectric power plants in it, with the county each one sits in. The nearest plant to any address is whichever of those is closest — this site does not read your location.

What is the largest hydroelectric power plant in the USA?

Grand Coulee in Washington, at 7 GW of nameplate capacity. The full list on this page is sorted largest first.

Where does this data come from, and how current is it?

The US Energy Information Administration's form EIA-860M, the preliminary monthly electric generator inventory, for 2026-07. It is a survey of plants of 1 MW and above; anything smaller is not in it, and nothing on this page is estimated to fill that gap.

Hydroelectric Power Plants in the United States

Every operating hydroelectric power plant the US Energy Information Administration lists on form EIA-860M, plotted on one map of the United States and listed in full: 1,394 plants, 3,903 generating units, 80 GW of nameplate capacity across 48 states.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 1,394; 3,903 generating units
Nameplate capacity: 80 GW
States: 48
Grid operator: Mixed; no single ISO covers a majority

Map of hydroelectric power plants in the United States

Every one of the 1,394 plants is drawn at the coordinate EIA files for it.

Loading map…

Hydro · 1,394

List of hydroelectric power plants in the United States

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

hydroelectric power plants in the United States

Grand Coulee2 technologies	U S Bureau of Reclamation	Grant	6,809	33	1941	Operating
Chief JosephConventional Hydroelectric	USACE Northwestern Division	Douglas	2,456.2	27	1955	Operating
Robert Moses NiagaraConventional Hydroelectric	New York Power Authority	Niagara	2,429.1	13	1961	Operating
John DayConventional Hydroelectric	USACE Northwestern Division	Sherman	2,160	16	1968	Operating
The DallesConventional Hydroelectric	USACE Northwestern Division	Wasco	1,819.7	24	1957	Operating
Rocky ReachConventional Hydroelectric	PUD No 1 of Chelan County - (WA)	Chelan	1,349.2	11	1961	Operating
Glen Canyon DamConventional Hydroelectric	U S Bureau of Reclamation	Coconino	1,312	8	1964	Operating
WanapumConventional Hydroelectric	PUD No 2 of Grant County - (WA)	Grant	1,220	10	2011	Operating
BonnevilleConventional Hydroelectric	USACE Northwestern Division	Multnomah	1,162	20	1938	Operating
BoundaryConventional Hydroelectric	City of Seattle - (WA)	Pend Oreille	1,159.7	6	1967	Operating
Hoover Dam (NV)Conventional Hydroelectric	U S Bureau of Reclamation	Clark	1,039.4	9	1936	Operating
Hoover Dam (AZ)Conventional Hydroelectric	U S Bureau of Reclamation	Mohave	1,039.4	10	1936	Operating
McNaryConventional Hydroelectric	USACE Northwestern Division	Umatilla	990.5	14	1953	Operating
Priest RapidsConventional Hydroelectric	PUD No 2 of Grant County - (WA)	Grant	950	10	1959	Operating
Robert Moses Power DamConventional Hydroelectric	New York Power Authority	St Lawrence	912	16	1958	Operating
WellsConventional Hydroelectric	PUD No 1 of Douglas County - (WA)	Chelan	866.8	10	1967	Operating
Little GooseConventional Hydroelectric	USACE Northwestern Division	Columbia	810	6	1970	Operating
Lower MonumentalConventional Hydroelectric	USACE Northwestern Division	Walla Walla	810	6	1969	Operating
Lower GraniteConventional Hydroelectric	USACE Northwestern Division	Whitman	810	6	1975	Operating
OaheConventional Hydroelectric	USACE-Omaha	Hughes	786.1	7	1962	Operating
ShastaConventional Hydroelectric	U S Bureau of Reclamation	Shasta	714	7	1944	Operating
BrownleeConventional Hydroelectric	Idaho Power Co	Washington	675	5	1958	Operating
Wilson DamConventional Hydroelectric	Tennessee Valley Authority	Lauderdale	666.7	21	1925	Operating
Edward C Hyatt2 technologies	California Dept. of Water Resources	Butte	644.1	6	1968	Operating
Rock IslandConventional Hydroelectric	PUD No 1 of Chelan County - (WA)	Chelan	629.4	19	1931	Operating
Ice HarborConventional Hydroelectric	USACE Northwestern Division	Walla Walla	603	6	1962	Operating
GarrisonConventional Hydroelectric	USACE-Omaha	Mercer	583.4	5	1956	Operating
Smith Mountain2 technologies	Appalachian Power Co	Pittsylvania	547.5	5	1965	Operating
Big Bend DamConventional Hydroelectric	USACE-Omaha	Buffalo	538.3	8	1964	Operating
ConowingoConventional Hydroelectric	Constellation Power, Inc	Harford	530.8	11	1928	Operating
LibbyConventional Hydroelectric	USACE Northwestern Division	Lincoln	525	5	1975	Operating
Carters2 technologies	USCE-Mobile District	Murray	500	4	1975	Operating
Noxon RapidsConventional Hydroelectric	Avista Corp	Sanders	487.8	5	1959	Operating
DworshakConventional Hydroelectric	USACE Northwestern Division	Clearwater	465	3	1974	Operating
RossConventional Hydroelectric	City of Seattle - (WA)	Whatcom	450	4	1952	Operating
Hungry HorseConventional Hydroelectric	U S Bureau of Reclamation	Flathead	428	4	1952	Operating
Hartwell LakeConventional Hydroelectric	USCE-Savannah District	Hart	420	5	1962	Operating
Safe HarborConventional Hydroelectric	Safe Harbor	Lancaster	417.5	14	1931	Operating
Hells CanyonConventional Hydroelectric	Idaho Power Co	Wallowa	411.1	3	1967	Operating
Wheeler DamConventional Hydroelectric	Tennessee Valley Authority	Lawrence	404	11	1936	Operating
Round ButteConventional Hydroelectric	Portland General Electric Co	Jefferson	372.5	3	1964	Operating
J Strom ThurmondConventional Hydroelectric	USCE-Savannah District	McCormick	361.9	7	1953	Operating
Cowans FordConventional Hydroelectric	Duke Energy Carolinas, LLC	Lincoln	350	4	1963	Operating
Bull ShoalsConventional Hydroelectric	USCE-Little Rock District	Marion	340	8	1952	Operating
Fort RandallConventional Hydroelectric	USACE-Omaha	Charles Mix	320	8	1954	Operating
ColgateConventional Hydroelectric	Yuba County Water Agency - (CA)	Yuba	315	2	1969	Operating
MossyrockConventional Hydroelectric	City of Tacoma - (WA)	Lewis	300	2	1968	Operating
New MelonesConventional Hydroelectric	U S Bureau of Reclamation	Tuolumne	300	2	1979	Operating
John H KerrConventional Hydroelectric	USCE-Wilmington District	Mecklenburg	296.8	9	1952	Operating
YellowtailConventional Hydroelectric	U S Bureau of Reclamation	Big Horn	278.2	4	1966	Operating
Devil CanyonConventional Hydroelectric	California Dept. of Water Resources	San Bernardino	276.2	4	1972	Operating
Wolf CreekConventional Hydroelectric	USCE-Nashville District	Russell	270	6	1951	Operating
White Rock/Slab CreekConventional Hydroelectric	Sacramento Municipal Util Dist	El Dorado	268.7	3	1968	Operating
Cabinet GorgeConventional Hydroelectric	Avista Corp	Bonner	265.2	4	1952	Operating
Davis DamConventional Hydroelectric	U S Bureau of Reclamation	Mohave	254.8	5	1951	Operating
Fontana DamConventional Hydroelectric	Tennessee Valley Authority	Swain	254.7	3	1945	Operating
Collierville PowerhouseConventional Hydroelectric	Northern California Power Agny	Calaveras	253	2	1989	Operating
HoltwoodConventional Hydroelectric	BIF III Holtwood LLC	Lancaster	247.3	14	1910	Operating
Pickwick Landing DamConventional Hydroelectric	Tennessee Valley Authority	Hardin	240	6	1938	Operating
Swift 1Conventional Hydroelectric	PacifiCorp	Skamania	240	3	1958	Operating
Selis Ksanka QlispeConventional Hydroelectric	Energy Keepers Inc	Lake	227.8	3	1938	Operating
Walter Bouldin DamConventional Hydroelectric	Alabama Power Co	Elmore	225	3	1967	Operating
Kentucky DamConventional Hydroelectric	Tennessee Valley Authority	Marshall	218.6	5	1944	Operating
Martin DamConventional Hydroelectric	Alabama Power Co	Elmore	210.6	4	1927	Operating
Osage DamConventional Hydroelectric	Union Electric Co - (MO)	Miller	208	8	1931	Operating
Saluda LexingtonConventional Hydroelectric	Dominion Energy South Carolina, Inc	Lexington	207.3	5	1930	Operating
GorgeConventional Hydroelectric	City of Seattle - (WA)	Whatcom	207.3	4	1924	Operating
Table RockConventional Hydroelectric	USCE-Little Rock District	Taney	200	4	1959	Operating
FolsomConventional Hydroelectric	U S Bureau of Reclamation	Sacramento	198.6	3	1955	Operating
S C MooreConventional Hydroelectric	Great River Hydro, LLC	Grafton	195.4	5	1957	Operating
Sidney A Murray Jr HydroelectricConventional Hydroelectric	First National Bank-Commerce	Concordia	192	8	1990	Operating
Mammoth PoolConventional Hydroelectric	Southern California Edison Co	Madera	190	2	1960	Operating
Oxbow (OR)Conventional Hydroelectric	Idaho Power Co	Baker	190	4	1961	Operating
DiabloConventional Hydroelectric	City of Seattle - (WA)	Whatcom	182.4	4	1936	Operating
Lewis Smith DamConventional Hydroelectric	Alabama Power Co	Walker	181	2	1961	Operating
Dion R HolmConventional Hydroelectric	City & County of San Francisco - (CA)	Tuolumne	180.2	2	1960	Operating
Spring CreekConventional Hydroelectric	U S Bureau of Reclamation	Shasta	180	2	1964	Operating
Fort PeckConventional Hydroelectric	USACE-Omaha	McCone	179.7	5	1943	Operating
GastonConventional Hydroelectric	Virginia Electric & Power Co	Halifax	177.6	4	1963	Operating
Lay DamConventional Hydroelectric	Alabama Power Co	Chilton	177	6	1967	Operating
Palisades DamConventional Hydroelectric	U S Bureau of Reclamation	Bonneville	176.4	4	1957	Operating
Watts Bar HydroConventional Hydroelectric	Tennessee Valley Authority	Rhea	174.6	5	1942	Operating
Big Creek 3Conventional Hydroelectric	Southern California Edison Co	Fresno	174.5	5	1923	Operating
Morrow PointConventional Hydroelectric	U S Bureau of Reclamation	Montrose	173.2	2	1970	Operating
Bartletts FerryConventional Hydroelectric	Georgia Power Co	Lee	173	6	1926	Operating
Don PedroConventional Hydroelectric	Turlock Irrigation District	Tuolumne	170.8	4	1971	Operating
Mitchell DamConventional Hydroelectric	Alabama Power Co	Coosa	170	4	1949	Operating
James B BlackConventional Hydroelectric	Pacific Gas & Electric Co.	Shasta	168.6	2	1965	Operating
Walter F GeorgeConventional Hydroelectric	USCE-Mobile District	Clay	168	4	1963	Operating
ComerfordConventional Hydroelectric	Great River Hydro, LLC	Grafton	167.8	4	1930	Operating
Pine FlatConventional Hydroelectric	Kings River Conservation Dist	Fresno	165	3	1984	Operating
MayfieldConventional Hydroelectric	City of Tacoma - (WA)	Lewis	162	4	1963	Operating
JaybirdConventional Hydroelectric	Sacramento Municipal Util Dist	El Dorado	161.6	2	1961	Operating
DardanelleConventional Hydroelectric	USCE-Little Rock District	Pope	160.8	4	1965	Operating
ChickamaugaConventional Hydroelectric	Tennessee Valley Authority	Hamilton	159.6	4	1940	Operating
Great Lakes Hydro America - ME2 technologies	Great Lakes Hydro America LLC	Penobscot	158	33	1917	Operating
CaminoConventional Hydroelectric	Sacramento Municipal Util Dist	El Dorado	157.8	2	1963	Operating
KeoweeConventional Hydroelectric	Duke Energy Carolinas, LLC	Pickens	157.6	2	1971	Operating
CalderwoodConventional Hydroelectric	Brookfield Smoky Mountain Hydropower LP	Blount	156.6	3	1930	Operating
Center HillConventional Hydroelectric	USCE-Nashville District	DeKalb	156	3	1950	Operating

Largest hydroelectric power plants in the United States

1Grand CouleeGrant County, Washington6,809 MW
2Chief JosephDouglas County, Washington2,456.2 MW
3Robert Moses NiagaraNiagara County, New York2,429.1 MW
4John DaySherman County, Oregon2,160 MW
5The DallesWasco County, Oregon1,819.7 MW
6Rocky ReachChelan County, Washington1,349.2 MW
7Glen Canyon DamCoconino County, Arizona1,312 MW
8WanapumGrant County, Washington1,220 MW
9BonnevilleMultnomah County, Oregon1,162 MW
10BoundaryPend Oreille County, Washington1,159.7 MW

Hydroelectric power plants by state

Every state EIA-860M reports for this fuel. Each links to that state’s own map and list.

Hydroelectric Power Plants in the United States: FAQ

Where can I find a map of hydroelectric power plants in the United States?: The map on this page. It plots every one of the 1,394 operating hydroelectric power plants in the US that EIA-860M reports for 2026-07, at the coordinates EIA files for each plant. It is a US map: EIA-860M covers the fifty states and DC, so a North American map including Canada and Mexico is out of scope here.
How many hydroelectric power plants are there in the US?: 1,394, totalling 80 GW of nameplate capacity across 3,903 generating units in 48 states. That is the EIA-860M count for 2026-07; Conventional hydroelectric. Pumped storage is counted separately.
Are hydel plants the same as hydroelectric plants?: "Hydel" is the usual word in South Asian English for a hydroelectric plant; this page uses the US term. Either way it means a plant generating from falling or flowing water, which is what EIA files as conventional hydroelectric. Pumped storage is counted separately here, because it consumes more energy than it produces.
Is there a hydroelectric power plant near me?: Pick your state from the list below to get the hydroelectric power plants in it, with the county each one sits in. The nearest plant to any address is whichever of those is closest — this site does not read your location.
What is the largest hydroelectric power plant in the USA?: Grand Coulee in Washington, at 7 GW of nameplate capacity. The full list on this page is sorted largest first.
Where does this data come from, and how current is it?: The US Energy Information Administration's form EIA-860M, the preliminary monthly electric generator inventory, for 2026-07. It is a survey of plants of 1 MW and above; anything smaller is not in it, and nothing on this page is estimated to fill that gap.