Google Chart With ASP.NET Core can't get it to work

Question

public JsonResult PopulationChart()
{
    using (SqlConnection con = new SqlConnection("Data Source=.....;Initial Catalog=....;User ID=....;Password=.....;"))
    {
        //await con.OpenAsync();
        con.Open();
        SqlTransaction transaction;
        transaction = con.BeginTransaction();

        using (SqlCommand cmd = new SqlCommand("GenLocationData", con, transaction))
        {
            try
            {
                cmd.CommandType = CommandType.StoredProcedure;
                //cmd.Parameters.AddWithValue("@UN", username);
                //cmd.Parameters.AddWithValue("@PW", password);

                //await cmd.ExecuteNonQueryAsync();
                cmd.ExecuteNonQuery();
                transaction.Commit();



                var populationList = _smscontext.LocationDatas.OrderBy(xx => xx.Location).ToList();

                return Json(populationList);
                //return RedirectToAction("Index", "UserHome");
            }
            catch (Exception ex)
            {
                transaction.Rollback();
                ModelState.AddModelError("", ex.Message);
                var populationList = _smscontext.LocationDatas.OrderBy(xx => xx.Location).ToList();
                return Json(populationList);
            }
        }
    }

}

<div id="chart_div"></div>
<script type="text/javascript">
//google.charts.load('current', {
// packages: ['corechart']
//});
google.charts.load('current', { packages: ['corechart', 'bar'] });
google.charts.setOnLoadCallback(LoadData);
function LoadData()
{
$.ajax({
url: '@Url.Action("PopulationChart","SMS")',
dataType: "json",
type: "GET",
error: function (xhr, status, error)
{
var err = eval("(" + xhr.responseText + ")");
toastr.error(err.message);
},
success: function (data)
{
PopulationChart(data);
return false;
}
});
return false;
}

function PopulationChart(data) {
var tdata = new google.visualization.DataTable(data);
tdata.addColumn('string', 'Location');
tdata.addColumn('number', 'Count');
for (var i = 0; i < data.length; i++) {
//tdata.data.addRow([data[i].Location, data[i].Count]);
var xxx = data[i].Location;
tdata.addRow([data[i].Location, 1]);
}
var options = {
'title': 'How Much Pizza I Ate Last Night',
//'width': 500,
//'height': 300
//is3D: true
};
var chart = new google.visualization.BarChart(document.getElementById('chart_div'));
chart.draw(tdata, options);
return false;
}
</script>

My problem is google charts can't seem to display the data[i].Location contents. Any help would be very appreciated.