Kordonboyu Neighborhood, Kartal
The Kordonboyu neighborhood is located in Kartal district, made up of 732 buildings.
Where Is Kordonboyu?
The Kordonboyu neighborhood is adjacent to neighborhoods such as Maden, Nizam, Atalar. Within the neighborhood, the price per square meter shows a 2.2x difference between the most and least expensive areas; the median for Istanbul neighborhoods is 2.05x.
Among apartments of the same size, age, floor and room count, a 2.24x price difference was measured within this neighborhood. The Istanbul median is ×2.05 (the black line marks it). A wide gap means where you live within the neighborhood matters a lot; a narrow one means the neighborhood is homogeneous.
We cannot say where in the neighborhood the difference occurs. Source and methodology
Who Lives in the Kordonboyu Neighborhood?
13K people live in Kordonboyu, at a density of 6,759 people per km². That is 63% below the Istanbul average density. The median age is 41; the Istanbul neighborhood average is 36, which makes this a neighborhood 6 years older. The average household here has 2.5 people. The average length of schooling is 12 years, 2 years above the city average. 43% are university graduates, compared with 22% citywide.
Education level of neighborhood residents
The vertical line marks the average (median) of Istanbul's 745 neighborhoods; the value beside it is the neighborhood's difference from that average (percentage points for ratios, relative difference for durations).
Infrastructure and environment
Socioeconomic status
Indicators are compiled from TÜİK, BTK and İBB Open Data records. Source and methodology
Profile of Kordonboyu Neighborhood Residents
Resident satisfaction
Share who said "satisfied" or "very satisfied." The vertical line marks the Kartal district overall.
Hometowns
Asked directly of residents in the İBB household survey: the hometown of those born outside Istanbul who settled here.
Source: İBB Veriye Dayalı Yönetim Modeli hane halkı araştırması (50.391 hane). 57 households from this neighborhood responded.
What Is the Kordonboyu Neighborhood Like?
Kordonboyu is a neighborhood with an education level markedly above the Istanbul average; 43% of adults are university graduates. By household, very few households receive social assistance (0.6%). At the ballot box, the opposition bloc is ahead markedly (77%). The density of cafes, bars and similar venues ranks among the highest in the city; the public space is markedly secular.
Consumption character
Looking at the types of consumption venues in Kordonboyu, the neighborhood is far above the Istanbul average on the secular/conservative public space scale.
Ballot box · political leaning
In the second round of the 2023 presidential election, muhalefet bloğunun cumhurbaşkanı adayı received 76.5% of the vote at Kordonboyu's ballot boxes. In the 2024 local elections, CHP finished ahead in the district mayoral race with 71.2%. With this vote distribution, the neighborhood falls in the 91% band of Istanbul's spectrum from ruling bloc vote to opposition bloc vote.
The scale shows political bloc preference; cultural identity is not inferred from the vote. Source and methodology
Civic fabric · associations
49 associations are registered with an address in the neighborhood. Most are in the meslek ve dayanışma category (26 associations). The sharpest deviation from Istanbul's composition is in the kültür, sanat, turizm category: 10 points higher than citywide.
The vertical line is that category's citywide share.
Hometown associations
It shows which communities have organized here, not who lives here. Source and methodology
This is not a measure of belief or lifestyle. Source and methodology
Transportation in the Kordonboyu Neighborhood
Within Kordonboyu's boundaries, 40 different İETT bus lines pass through 53 bus stops. The neighborhood is served by Marmaray, with stations inside the neighborhood: Atalar, Başak, Kartal. Yunus station is also just outside the boundary, within walking distance. 100% of the neighborhood's population can reach a rail transit stop within walking distance.
Stops were counted within the neighborhood boundary; rail stations and ferry piers have a 400 meter buffer. Source and methodology
Building Stock
The neighborhood's building construction period and floor distribution. Construction period is the strongest factor determining earthquake risk.
Source: İBB Open Data (2017 Neighborhood-Level Building Counts). Construction after 2017 is not reflected in this count.
Earthquake Risk (İBB Possible Earthquake Scenario)
Projected values for this neighborhood in the expected major Marmara earthquake.
İBB olası deprem senaryosu (mahalle bazında)
Soil class
37% of Kordonboyu's soil is in the loose or soft class (Z3-Z4). Ground motion here is felt on average 26% stronger than on rock.
Source: İBB Microzonation, Soil Classification Map (per the Earthquake Code). 79% of the neighborhood is covered by the map; the shares are based on that portion. The map's positional accuracy was measured at 170 meters, so it does not resolve to a single parcel.
Find Out a Home's Value in Kordonboyu
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