Area 7

In this Area, the targets for going west are much lower than in previous Areas. The amount of time that it takes to double pioneers is also a lot higher than in previous Areas, but this is slightly compensated by the reduced targets. After a certain point, (If you finish most of the towns at maximum population) progress gets faster and faster until you finish the Area. (It's unbalanced in the opposite way as in late Area 3.)

This article contains a complete list of all business upgrade bonuses as well as milestones for upgrading all businesses of a town to a certain level.

This list is up-to-date for the current version of the game (v1.15.2) and was written by Ampelphase.

Area 7 is similar to area 6 in a few ways, but not super similar. The all profit pioneer upgrades are lower than in area 6, and are usually not very powerful until the late stages of this area. The beginning cash upgrades are also very similar to in area 6, but later on, there starts to be differences, but a pattern can still be found.

If you manage to reach 1 aw pioneers, progress accelerates at an extremely rapid rate, and you'll soon be able to go west with population maxed out as soon as you have everything built up. It stays this way until you finish the area, unless you've used the glitch to exceed maximum population. Even then, you will still be able to finish towns at maximum population until somewhere after you've purchased the 2nd to last cash upgrade for $23 dd. The last one costs $280 dq and you should not expect to get it, as progress quickly slows down after the $23 dd cash upgrade, and comes to a stop at the dn or do cash range, maybe dp if you don't hire stagecoach service pioneer outlaws and have used the patent card glitch.

Videos for each town

All-around bonus
This video shows the complete list of cash upgrades and also all pioneer upgrades that can be shown with maximum possible population.