Resolved: How to judge by the value of useState updated in useEffect from dispatch and payload in Redux

const [ multipleList, setMultipleList ] = useState<selectAddressList[]>([])
const selAddressList = useSelectAddressList();

// ★１
useEffect(() => {
 const setNewSelAddrList = () => {
  if (selAddressList && selAddressList.length > 0){
   const newList = [...selAddressList]
  
   // It has been confirmed that the updated address list is stored here.
　 setMultipleList(newList);
　}
 }
 setNewSelAddrList();
}, [selAddressList])

// Combo Box Change Event
const onChangeAddr3 = async(rowData:string) => {

 // rowData contains a zip code.
 if (rowData != ''){

  // Get a list of addresses from a zip code
  await dispatch(fetchAsyncSelectedAddressList(rowData.toString()))        // ★２
　    
  // ★I want to be judged by the number of updated address listings.★
  if (multipleList.length == 0){
   ＸＸＸＸＸＸＸ
  }

 }
};

export function useSelectAddressList():selectAddressList[] {
  return useSelector((state:RootState) => state.selectAddressList.list);
}

export const fetchAsyncSelectedAddressList = createAsyncThunk<selectAddressList[], string>(
  "address/list",
  async (zipNo : string) => {
    const res = await axios.get<selectAddressList[]>(`${url}xxxx/xxx`,{
      params: {
        zipNo: zipNo,
      } as searchParams
    });
    return res.data;
  }
);

<StyleFrom>
 <NativeSelect
  required
  disabled = {disableAddress}
  value = { add3Value }
  onChange = {e => onChangeAddr3(e.target.value as string)}
 >
  <option key={0} value=''>{''}</option>
  {
   addr3List?
   addr3List.map((row) => {
    return (
     <option key={row.zipNo}
             value={String(row.zipNo)}>
      {row.addrC}
     </option>
    )
   })
  : <option key={-1} value={0}>{'Failed'}</option>}
 </NativeSelect>
</StyleFrom>

await dispatch(fetchAsyncSelectedAddressList(rowData.toString())).then((res) => {
 // get count of list
 const newList = res.payload as selectAddressList[]

 if (newList.length == 0){
  // case 0 count of list
  alert(`no data`);
  return;
 }
 else { alert(newList.length) }
})