Cities:Skylines has a four-tier education hierarchy, and all citizens and jobs have a rating upon it. Assuming other conditions are met, educated citizens will have their homes upgraded to higher building levels, and will be able to get better, higher paid jobs in your commercial, office and industrial zones, helping those zones to level up also. The four levels of education are uneducated, educated, well-educated and highly-educated. An overview of the state of education in your city can be viewed by clicking the education interface.
When the first citizens move in to your fledgling city they will be uneducated and fit for only the most menial of jobs. Luckily a little investment in the education infrastructure of your city will produce you a populace of well-read intellectuals which has many benefits.
This table does not include education buildings from the Campus expansion.
|Community School||Little Hamlet||12,000||240||0||0||160||320||8×4||An alternative to Elementary School.Student capacity: 250|
European Elementary School
|Little Hamlet||10,000||160||0||0||240||480||6×44x3||-||Student capacity: 300|
|Faculty||Big Town||24,000||640||0||0||320||320||3×5||A small University.Student Capacity: 800|
|Hadron Collider||Megalopolis||800,000||9,600||0||100||640||1,440||14×11||-||MonumentProvides all education the for city.|
European High School
|Tiny Town||24,000||560||0||0||640||1,440||6×59×10||-||Student capacity: 1,000|
|Institute of Creative Arts||Tiny Town||30,000||720||0||0||240||640||10×6||An alternative to the High School.A prestigious school specializing in creative arts.Student capacity: 800|
|Modern Technology Institute||Big Town||90,000||2,400||0||0||480||1,200||12x13||An alternative to the University. Teaches in the ways of technology.Student capacity: 4,000|
|Public Library||Tiny Town||22,000||400||0||0||320||640||10×8||-||Libraries give a small bonus to education within building radius.Small chance for visitors to gain an education level.Requirement for "Academic Library" Level 5 Unique Building.Visitor capacity: 100|
|-||Student capacity: 4,500|
Your citizens will have the best chance of a good education if the city-wide educational capacity at each level is kept at or above the numbers of eligible students. The Hadron Collider monument makes all education buildings unnecessary, as it single-handedly provides more education than your entire city could ever need (1 million capacity at all levels). Note that this will make Campus universities function poorly, as they will not be able to get the students required to level up.
The community school, Institute of Creative Arts, and the Modern Technology institute (Green Cities DLC) all support fewer students, but a larger area, so they are more suited for less densely populated areas.
Students will travel to and from their places of education. It is therefore important to have good transport connections to these buildings.
Budget and policies
The Education Boost policy will encourage citizens to prioritize education over employment. At a cost, this will raise the average education level your citizens achieve.
The Educational Blimps policy places educational posters on the sides of blimps, which boosts education slightly with no extra cost to the city.
The For-Profit Education policy reduces educational upkeep costs by 50% in exchange for all students having to pay tuition to attend school. Reduces citizen happiness.
The School's Out policy results in only a small portion of the eligible citizens going to study in the university.
Student ages and education levels
Citizens attend the correct school type at the correct age, to gain education levels. This means that teens who have not attended elementary school are not eligible for high school and young adults/adults who have not attended high school are not eligible for university. Teens can not gain elementary education in high school and young adults/adults can not gain elementary and/or high school education in university. 
The lowest level is Uneducated.
Elementary schools provide education for uneducated children. Graduates obtain Educated level.
High Schools provide education for educated teenagers. Graduates obtain Well Educated level.
Universities provide education for well educated young adults. Graduates obtain Highly Educated level.
Public Libraries are a city service that provides both entertainment for its neighborhood and a small chance for children, teens, young adults and adults to be educated further. When a young adult or adult enters the Public Library, there is a chance that they'll gain an education level when they leave. The chance is quite small so the Public Library is not able to cover the entire education needs of a city, or even a fledgling town for that matter. And the chance gets smaller the higher in education level is in question.
What they lack in education power they will make up for with entertainment.
Five Public Libraries are required as a one of the prerequisites to build the Academic Library level 5 Unique Building.
|Available only with the Campus DLC enabled.|
Every job in the city will be assigned an education level, and business will complain (and eventually move out) if they cannot source workers with sufficient education. Higher level buildings will require more educated workers. Cims will take jobs below their education level if nothing else is available. Inspecting a commercial, industrial or office building will show the educational requirements of the building's jobs and to what extent they are filled.
Players can choose to deliberately under-provide educational services in order to ensure an adequate supply of workers to fill low and medium-skilled occupation/job sectors.
Educated citizens generate less garbage than uneducated ones.
The School of Environmental Studies, a Unique Faculty building for the Liberal Arts College, decreases city-wide garbage accumulation.