List Items Count in a Particular SharePoint Web Application

Below code snippets explain how to get List items count in a particular sharepoint web application using powershell script:

cls
Add-PSSnapin Microsoft.SharePoint.Powershell

$SPWebApp = Get-SPWebApplication("http://moss13:1111/")

$i=0
foreach ($SPSite in $SPWebApp.Sites)
{
    Write-Host "Going thru Site Collection" $SPSite.Title
    foreach ($SPWeb in $SPSite.AllWebs)
    {
        Write-Host "Going thru Web" $SPWeb.Title
        foreach ($SPList in $SPWeb.Lists)
        {
        Write-Host "Going thru List" $SPList.Title "which has" $SPList.ItemCount "item(s)"
        foreach ($SPListItem in $SPList.Items)
        {
            Write-Host "Going thru Item" $SPListItem.Name
            $i=$i+1
            }
        }
        $SPWeb.dispose()
    }
    $SPSite.dispose()
}
Write-Host "Total item count" $i