A Count is a character who controls at least one County. It is the second title rank available and the lowest rank that is playable. On the map, the territory of a County will encompass multiple Baronies and cannot be altered. On the map, each County will have a Culture and Faith.
Control
Control represents the power a landed Count has over its County and ranges from 0 to 100. It is decreased during sieges and when Baronies are forcefully seized. Control increases at a rate of 0.1 per month and can be increased faster with the Marshal Task Increase Control in County. Every point of Control below 100 reduces a County's Taxes by -1% and Levies by -0.5%. Thus, monitoring the realm's Control is one way of ensuring a good supply of Taxes and Levies. In addition, keeping high Control in the player character's own Domain counties should be a priority, before increasing the Control of vassal counties.
Counties with 100 Control provide additional Levies and Taxes if the title holder has the Absolute Control perk.
Development
Development is the measurement of technological advancement and general infrastructure in a County and ranges from 0 to 100. Development increases very slowly across the duration of the game and radiates outwards from high-Development Counties to those nearby. It can also be increased via a Steward's Increase Development task, but it is still a fairly slow process.
Each point of Development increases the County's Supply limit by +150. If the County is ruled by a Feudal or Clan Ruler, each point of Development also provides +0.5% Taxes and Levies.
Based on its Culture, each County will have a development cap after which Development growth will slow down. The cap starts at 10 Development, but each Era has an Innovation that will raise it.
Counties under Tribal government are not affected by Development.
Popular Opinion
Popular Opinion represents the sentiment of the populace towards the County's Ruler. It is decreased by -10 when the Ruler belongs to a different Culture Group and by a varying amount if the Ruler adheres to a different Faith, encouraging the use of Vassals of the local Culture Group and Faith. If Popular Opinion is negative, Populist or Peasant Factions can form in the County.
Corruption
Corruption includes various negative modifiers that can appear for 10 years in a County if Control falls below 35% or the title holder is in Debt for more than 3 months. They can also be added for 5 years by the Collect Taxes councilor action if the Steward has low skill. A county can have up to 3 Corruption modifiers at the same time.