How many senator per each state?

There are 2 senators for each state in the US Senate, a total of 100.

But "state senators" are in the state legislatures, and the number varies by state, from as few as 20 to as many as 67. This is usually because (like the state house of representatives) the districts are determined by population. Some can change sizes. Nebraska has a unicameral legislature, with no separate senate.

Alabama - 35

Alaska - 20 (fewest of any state)

Arizona - 30

Arkansas - 35

California - 40

Colorado - 35

Connecticut - 36

Delaware - 21

Florida - 40

Georgia - 56

Hawaii - 25

Idaho - 35

Illinois - 59

Indiana - 50

Iowa - 50

Kansas - 49

Kentucky - 38

Louisiana - 39

Maine - 35

Maryland - 47

Massachusetts - 40

Michigan - 38

Minnesota - 67 (most of any state)

Mississippi - 52

Missouri - 34

Montana - 50

Nebraska - * No separate senate - 49 state representatives

Nevada - 21

New Hampshire - 24

New Jersey - 40

New Mexico - 42

New York - 63

North Carolina - 50

North Dakota - 47

Ohio - 33

Oklahoma - 48

Oregon - 30

Pennsylvania - 50

Rhode Island - 38

South Carolina - 46

South Dakota - 35

Tennessee - 33

Texas - 31

Utah - 29

Vermont - 30

Virginia - 40

Washington - 49

West Virginia - 17

Wisconsin - 33

Wyoming - 30