Population (1 January) — Kocaeli (NUTS-3 TR421)
AnnualNot seasonally adjustedCode TR-421.POP.A.NSA
Population (1 January) — Kocaeli (NUTS-3 TR421) was 2,130,006 persons in 2025, up 1.3% from 2024.
That is the highest reading since the series began in 2001.
Over the past ten years it has ranged from 1,722,795 persons (2015) to 2,130,006 persons (2025), averaging 1,947,182 persons.
Showing the full history (downsampled for display). Open the interactive chart to zoom and switch transforms.
Recent data
| Period | Value |
|---|---|
| 2025 | 2,130,006 persons |
| 2024 | 2,102,907 persons |
| 2023 | 2,079,072 persons |
| 2022 | 2,033,441 persons |
| 2021 | 1,997,258 persons |
| 2020 | 1,953,035 persons |
| 2019 | 1,906,391 persons |
| 2018 | 1,883,270 persons |
| 2017 | 1,830,772 persons |
| 2016 | 1,780,055 persons |
| 2015 | 1,722,795 persons |
| 2014 | 1,676,202 persons |
| 2013 | 1,634,691 persons |
| 2012 | 1,601,720 persons |
| 2011 | 1,560,138 persons |
| 2010 | 1,522,408 persons |
| 2009 | 1,490,358 persons |
| 2008 | 1,437,926 persons |
| 2007 | 1,403,154 persons |
| 2006 | 1,368,547 persons |
| 2005 | 1,334,747 persons |
| 2004 | 1,301,853 persons |
| 2003 | 1,270,134 persons |
| 2002 | 1,238,554 persons |
Last 24 observations. The full history (25 observations) is available through the API.
One guessable code, agency-direct, updated on release. Free tier available.
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
"https://makrognosis.robomacro.com/v1/series/TR-421.POP.A.NSA"
# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/TR-421.POP.A.NSA",
headers={"X-API-Key": KEY})
obs = r.json()["observations"]About this series
| Latest observation | 2025 |
|---|---|
| First observation | 2001 |
| Observations | 25 |
| Frequency | Annual |
| Units | persons |
| Adjustment | Not seasonally adjusted |
| 10-year high | 2,130,006 persons (2025) |
| 10-year low | 1,722,795 persons (2015) |
| 10-year average | 1,947,182 persons |
| Source agency | Eurostat (Statistical Office of the European Union) |
| Makrognosis code | TR-421.POP.A.NSA |
This series is a labelled reference series (an official figure republished by an aggregator) rather than a first print from the agency itself.
Other Turkey indicators
National figure
FAQ
- Where does this data come from?
- It is collected directly from Eurostat (Statistical Office of the European Union) and is available through the Makrognosis API under the code TR-421.POP.A.NSA.
Last updated 2026-07-12. Source: Eurostat (Statistical Office of the European Union). Original title: “Population (1 January) — Kocaeli (NUTS-3 TR421)”.