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Postal Code 41001 - İzmit, Kocaeli Province

Primary Cityİzmit
Area of Postal Code 41001410.3 km²
Male Population20,831 (49.9%)
Female Population20,920 (50.1%)
Population change from 1975 to 2015 +1,319.7%
Population change from 2000 to 2015 +109.8%
Median Age31.3 years
Male Median Age31 years
Female Median Age31.6 years
Local TimeFriday 11:27 AM
Coordinates40.851984353197246° / 30.056900246959554°
Related Postal Codes410004101041030410404105041060

Map of Postal Code 41001

Interactive Map

Postal Code 41001 Population

Years 1975 to 2015
Population Density7.17 / km²20.3 / km²48.5 / km²101.8 / km²
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid

41001 Population change from 2000 to 2015

Increase of 109.8% from year 2000 to 2015
LocationChange since 1975Change since 1990Change since 2000
Postal Code 41001+1,319.7%+400.1%+109.8%
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid

Postal Code 41001 Median Age

Median Age: 31.3 years
LocationMedian AgeMedian Age (Female)Median Age (Male)
Postal Code 4100131.3 years31.6 years31 years
Kocaeli30 years30.1 years29.9 years
Turkey29.2 years29.8 years28.7 years
Sources: CIESIN (Center for International Earth Science Information Network)

Postal Code 41001 Population Tree

Population By Age and Gender
Under 51,5461,4422,989
85 Plus5096147
Sources: CIESIN (Center for International Earth Science Information Network)

Postal Code 41001 Population Density

Population Density: 101.8 / km²
LocationPopulationAreaPopulation Density
Postal Code 4100141,752410.3 km²101.8 / km²
Kocaeli1.5 million3,550.8 km²409.4 / km²
Turkey77.8 million780,782.9 km²99.6 / km²
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid

Postal Code 41001 Historical and Projected Population

Estimated Ancient Population until 2100
1. JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
2. CIESIN (Center for International Earth Science Information Network)
3. [Link] Klein Goldewijk, K., Beusen, A., Doelman, J., and Stehfest, E.: Anthropogenic land use estimates for the Holocene – HYDE 3.2, Earth Syst. Sci. Data, 9, 927–953,, 2017.


Business Distribution by neighborhood in 41001
 Tepecik Mahallesi: 13.3%
 Sanayi Mahallesi: 6.7%
 Karabaş Mahallesi: 6.7%
 Çayırköy Mah.: 6.7%
 Kemalpaşa Mahallesi: 6.7%
 Kadıköy Mahallesi: 6.7%
 Sanayi Mah. Çarşı Yapı Sitesi: 6.7%
 Kabaoğlu Mah: 6.7%
 Kabaoğlu Mahallesi: 6.7%
 Kabaoğlu Mh: 6.7%
 Körfez Mh.: 6.7%
 Merkez: 6.7%
 Merkez Mahallesi: 6.7%

Area Codes

Percentage Area Codes used by businesses in 41001
 Area Code 262: 58.3%
 Area Code 850: 20.8%
 Area Code 536: 8.3%
 Area Code 507: 4.2%
 Area Code 542: 4.2%
 Area Code 545: 4.2%


Business Distribution by Industry
 Restaurants: 17%
 Education: 13.3%
 Industry: 9.9%
 Hotels & Travel: 9.4%
 Sports & Activities: 9.1%
 Shopping: 8.3%
 Medical: 7.4%
 Other: 25.7%

Human Development Index (HDI)

Statistic composite index of life expectancy, education, and per capita income.
Sources: [Link] Kummu, M., Taka, M. & Guillaume, J. Gridded global datasets for Gross Domestic Product and Human Development Index over 1990–2015. Sci Data 5, 180004 (2018) doi:10.1038/sdata.2018.4

Postal Code 41001 CO2 Emissions

Carbon Dioxide (CO2) Emissions Per Capita in Tonnes Per Year
LocationCO2 EmissionsCO2 Emissions Per CapitaCO2 Emissions Intensity
Postal Code 41001276,236 t6.62 t673.2 t/km²
Kocaeli9,337,525 t6.42 t2,629 t/km²
Turkey435,645,811 t5.6 t558 t/km²
Sources: [Link] Moran, D., Kanemoto K; Jiborn, M., Wood, R., Többen, J., and Seto, K.C. (2018) Carbon footprints of 13,000 cities. Environmental Research Letters DOI: 10.1088/1748-9326/aac72a

Postal Code 41001 CO2 Emissions

2013 CO2 emissions (tonnes/year)276,236 t
2013 CO2 emissions (tonnes/year) per capita6.62 t
2013 CO2 emissions intensity (tonnes/km²/year)673.2 t/km²

Natural Hazards Risk

Relative risk out of 10
LandslideHigh (7)
FloodHigh (7)
EarthquakeHigh (8.4)
* Risk, particularly concerning flood or landslide, may not be for the entire area.

Recent Nearby Earthquakes

Magnitude 3.0 and greater
8/1/0712:03 PM3.911.1 km10,000 mwestern
4/2/004:37 PM3.415 km5,000 mwestern
3/6/002:27 AM3.13.8 km9,500 mwestern
12/12/999:07 AM3.213.9 km13,900 mwestern
11/11/996:49 AM3.314.8 km8,600 mwestern
10/17/993:39 AM3.312.2 km9,800 mwestern
10/3/9911:17 AM3.119.1 km9,700 mwestern
10/3/999:19 AM3.116 km13,100 mwestern
9/17/9912:50 PM4.317.7 km10,000 mwestern
9/13/994:55 AM5.915.9 km13,000 mwestern

Find historical earthquake occurrences near Postal Code 41001

Earliest Date  Latest Date 
 Magnitude 3.0 and greater   Magnitude 4.0 and greater   Magnitude 5.0 and greater 

Primary City

İzmit (Greek: Νικομήδεια, Nikomedeia), traditionally called in English Ismid, is a city in Turkey, the administrative center of the Kocaeli Province as well as the Metropolitan Municipality. It is located at the Gulf of İzmit in the Sea of Marmara, a..  ︎  İzmit Wikipedia Page


Percentage of businesses by city in 41001
 İzmit: 87.5%
 Gölcük: 4.2%
 Gebze: 4.2%
 Derince: 4.2%

About Our Data

The data on this page is estimated using a number of publicly available tools and resources. It is provided without warranty, and could contain inaccuracies. Use at your own risk. See here for more information.