Cant grow cities up to six

[temu]

Its mi first game, and always mi cities grow six and them fall into disorders and never increase.

What im doing wrong.
Im in replublic now.

thanks

[Harovan]

Three things you can do:

1) Connect or trade for some luxuries.
2) Increase your luxury slider (F1 upper right) until the number of happy citizens in every city at least matches the number of unhappy citizens.
3) Make one or more citizens entertainers. (Worst method, you should do this only in exceptions)

In other government forms, which allow martial law (such as Despotism and Monarchy) you can, up to a limit, also increase the number of garrison units. Under Republic, however, this does not work.

[Torkkeli]

Also cities that are not next to river or inland water need to have Aquaducts to grow past size 6.

[Addled Platypus]

graineries always a must
aquaducts always a must
a couple workers produced helps in keeping pop due to unhappiness because of pop

I do a rolling delay so I dont have to do a whole bunch at once
Because then there is the support of all the improvements going in..

then the workers start roading to bring in more trade/gold to help offset the expense

how many total cities ?