Well I think that might assume too much. Remember it's a plug and play city. A city of 10,000 with a rural population of 100k is 'reaching' by too much. That would have a large influence of the army/militia numbers and I'm not really for that.
One thing to note is that this is NOT a typical medieval city.
Mor's End started as a trading post near a caravan resting point. The only other inhabitants in the area were the dwarves of Kul Moren... and a few tribal Argali sheep herdsman.
The area was frought with danger... raiders of all sorts tried to prey on the smaller caravans. Caravans still used this route because it provided an easy crossing of the Mor River. Here the Mor was somewhat lazy and narrow. Further down stream as other tributaries joined, it became wide and somewhat dangerous... but I digress...
The trading post became a village. They were self sufficient... the started to grow their own crops, they fished from the lake, they traded for sheep with the herdsman, etc.
50 years... and Mor's End is boom town. The sapphire rush is on... and people from all over the known lands are coming to strike it rich with sapphires. These first 50 years are very turbulent. Raiding humanoids attack several times throughout the year... but greed for sapphires has taken hold... and people still come in droves. Around this time, the dwarves of Kul Moren take a vested interest in the boomtown and help build up the defenses. The local herdsman have suddenly been elevated to landed gentry. They can barely keep up with the demand for their flock. City Pop: 1000... Rural Pop: 1000
100 years... Mor's End is still booming... Water Silk is discovered. Clay deposits are uncovered. Magical properties of sapphires are discovered. People continue moving to the city and Enheim in general. Independent villages are formed around Lake Enoria... and inland. The town develops farm land just to the north. Local Herdsman are now fully landed gentry... they control a lot of the surrounding land... they also develop a taste for the finer things coming their way via caravan. As the population grows, the humanoid threat is lessened. The humanoids aren't strong enough or organized enough to attack with any regularity. Mercenaries and adventurers from far and wide make their way to the city. City Pop: 2000... Rural Pop: 3000
150 years... Mor's End is really cooking now... Water Silk is a hot commodity. Artisans come for the excellent clay. The sapphires are renowned far and wide. Lake Kelp is found to be tasty and nutritious. Guilds start forming. Caravans are coming full steam. Humanoids turn away from attacking the burgeoning town... they instead resort to attacking the new caravans and villages. Despite the humanoid threat... people still come in droves, especially for the "free" land available in Enheim. A few nobles from other kingdoms come simply to buy out some of the local squatters. Some sell, and move into the city... others hold out and become farmers, fishermen... or landed gentry. City Pop: 3500... Rural Pop: 6000
200 years... Mor's End is still going strong.... Although guilds had been around, they had no real power... Now is the time they start really gaining in strength. Realizing that their livelihood is being threatened by humanoid raiders. Mor's End offers protection to the local caravan routes and villagers... independent villages and landed gentry pay a tax for protection. Due to the protection from the city... humanoid attacks lessen, but don't ever go away. A very wealthy class starts developing within the city. Tasty sweet pickles are found in the Soggy Bottom Swamp. underground warrens are found on the north side of city. Current Government structure begins to form. City Pop: 5000... Rural Pop: 12,000
320 years(current day)... Mor's End is still growing... It is a rich city-state with many natural resources. The current head of state is Lady Kelvin (not sure how she came into power)... The population growth has steadied in the city... but Enheim is still seeing strong population growth. There are several independent villages in Enheim. There are also a lot of land owned by local nobles (descendents of the herdsman) and foreign nobles (that bought the land from local squatters). City Pop: 10,000... Rural Pop: 30,000
I'm at work right now... so I'm sorry if the above appears like a jumble...