mysql – print total records in bd

I have a question and I hope you can help me with my query, it turns out that I'm doing a management Panel and I have to print in a dashboard widget the total number of users that have registered and I get it but I am interested in showing the sum of the records that go from the day , not the total that there is in the database, how would this do? I hope you can support me

PS: In the Bd there is the column Created_At in which the date and time in which a new user is registered is inserted.

The controler "DashboardController":

    User :: count (),
        ];


        return view ('admin.dashboard', $ data);
    }
}

and print the variable as:

{{$ usersCount}}