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Postal Code 81900 - Kaynaşlı, Düzce

Primary CityKaynaşlı
Area of Postal Code 819008.5 km²
Male Population3,194 (49.3%)
Female Population3,283 (50.7%)
Population change from 1975 to 2015 +58.1%
Population change from 2000 to 2015 -4.5%
Median Age31 years
Male Median Age31.2 years
Female Median Age30.8 years
NeighborhoodsKaraçalı Mahallesi, Kumluca Mahallesi, Merkez Mahallesi, Sarıyer Mahallesi, Şimşir Mahallesi
Local TimeSunday 8:14 AM
Coordinates40.772841668286155° / 31.3000130186577°
Related Postal Codes817008175081800819028195081952

Map of Postal Code 81900

Interactive Map

Postal Code 81900 Population

Years 1975 to 2015
Population Density484.0 / km²770.2 / km²801.4 / km²765.2 / km²
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid

81900 Population change from 2000 to 2015

Decrease of 4.5% from year 2000 to 2015
LocationChange since 1975Change since 1990Change since 2000
Postal Code 81900+58.1%-0.7%-4.5%
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid

Postal Code 81900 Median Age

Median Age: 31 years
LocationMedian AgeMedian Age (Female)Median Age (Male)
Postal Code 8190031 years30.8 years31.2 years
Düzce31.4 years31.6 years31.1 years
Turkey29.2 years29.8 years28.7 years
Sources: CIESIN (Center for International Earth Science Information Network)

Postal Code 81900 Population Tree

Population By Age and Gender
Under 5253259512
85 Plus152136
Sources: CIESIN (Center for International Earth Science Information Network)

Postal Code 81900 Population Density

Population Density: 765.2 / km²
LocationPopulationAreaPopulation Density
Postal Code 819006,4778.5 km²765.2 / km²
Düzce364,3082,483.6 km²146.7 / 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 81900 Historical Population

Estimated Ancient Population until 2015
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 81900
 Merkez Mahallesi: 43.1%
 Şimşir Mahallesi: 17.5%
 Karaçalı Mahallesi: 15%
 Sarıyer Mahallesi: 5.8%
 Other: 18.6%

Business Concentration in Postal Code 81900

81900 Business Heat Map


Business Distribution by Industry
 Restaurants: 20.6%
 Shopping: 12.7%
 Food: 11.4%
 Automotive: 8.9%
 Hotels & Travel: 6.5%
 Industry: 6.4%
 Professional Services: 6.3%
 Sports & Activities: 5.1%
 Other: 22.1%
Industry DescriptionNumber of EstablishmentsAverage Google RatingBusinesses per 1,000 residents
Car repair124.41.9
Gas stations63.60.9
Public administration114.21.7
Loan companies53.50.8
Grocery stores and supermarkets244.13.7
Buses and trains63.60.9
All membership organizations53.50.8
Other wholesale60.9
Turkish restaurants54.10.8
Public parks64.30.9

Business distribution by price for Postal Code 81900

 Moderate: 57.6%
 Inexpensive: 24.2%
 Expensive: 15.2%
 Very Expensive: 3%

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 81900 CO2 Emissions

Carbon Dioxide (CO2) Emissions Per Capita in Tonnes Per Year
LocationCO2 EmissionsCO2 Emissions Per CapitaCO2 Emissions Intensity
Postal Code 8190038,003 t5.87 t4,489 t/km²
Düzce2,104,101 t5.78 t847.2 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 81900 CO2 Emissions

2013 CO2 emissions (tonnes/year)38,003 t
2013 CO2 emissions (tonnes/year) per capita5.87 t
2013 CO2 emissions intensity (tonnes/km²/year)4,489 t/km²

Natural Hazards Risk

Relative risk out of 10
LandslideHigh (7)
EarthquakeHigh (9.4)
* Risk, particularly concerning flood or landslide, may not be for the entire area.

Recent Nearby Earthquakes

Magnitude 3.0 and greater
11/21/061:14 AM3.88.3 km5,300 mwestern
4/18/012:06 PM3.716.8 km8,000 mwestern
4/5/008:48 AM3.19.9 km12,000 mwestern
3/19/003:59 AM3.40.4 km7,200 mwestern
1/20/002:35 AM4.36 km10,000 mwestern
1/8/003:06 AM3.213.8 km8,500 mwestern
1/5/006:10 AM45.7 km10,000 mwestern
12/17/994:12 AM3.513.8 km18,000 mwestern
12/11/999:15 AM3.412.4 km3,800 mwestern
11/29/997:03 AM3.113.8 km5,200 mwestern

Find historical earthquake occurrences near Postal Code 81900

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

Primary City

Kaynaşlı is a town and a district of Düzce Province in the Black Sea region of Turkey. The mayor is Erol Bayraktar (AKP).  ︎  Kaynaşlı Wikipedia Page


Percentage of businesses by city in 81900
 Kaynaşlı: 77.2%
 Düzce: 22.3%
 Other: 0.6%

About Our Data

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