term-admin-column.php

<?php
// Display County (Custom Taxonomy) in States (Custom Taxonomy) - Add New Taxonomy Admin Column
add_filter( 'manage_edit-states_columns', 'wpdocs_add_new_states_columns', 10 );
function wpdocs_add_new_states_columns( $columns ) {
    $columns['county'] = __( 'County' );
    return $columns;
}

add_action( 'manage_states_custom_column', 'wpdocs_show_states_meta_info_in_columns', 10, 3 );
function wpdocs_show_states_meta_info_in_columns( $string, $columns, $term_id ) {
    switch ( $columns ) {
        case 'county' :
            $t_id = esc_html( get_term_meta( $term_id, 'select_county_states', true ) );
            echo get_term( $t_id )->name;
        break;
    }
}