# Konstancin-Jeziorna

> city in Masovian Voivodeship, Poland

**Wikidata**: [Q985687](https://www.wikidata.org/wiki/Q985687)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Konstancin-Jeziorna)  
**Source**: https://4ort.xyz/entity/konstancin-jeziorna

## Summary
Konstancin-Jeziorna is a city located in the Masovian Voivodeship of Poland, situated within the continent of Europe. Established in 1410, it serves as the capital of Gmina Konstancin-Jeziorna and covers an area of 17.74 square kilometers. As of the 2021 Polish census, the city has a population of 17,157 residents.

## Key Facts
*   **Location:** Europe; Masovian Voivodeship, Poland.
*   **Coordinates:** 52.0938° N, 21.11761° E (primary); 52.0833° N, 21.1166° E (secondary).
*   **Area:** 17.74 square kilometres.
*   **Inception:** 1410.
*   **Population:** 17,157 (as of March 31, 2021, per Polish census).
*   **Population (Historical):** 23,694 (recorded in 2006).
*   **Demographics (2021):** 7,993 male residents; 9,164 female residents.
*   **Timezone:** Central European Time (UTC+01:00) standard; Central European Summer Time (UTC+02:00) daylight saving.
*   **Postal Code:** 05-520.
*   **License Plate Code:** WPI.
*   **Official Website:** http://www.konstancinjeziorna.pl
*   **Awards:** Work Flag Order, 1st class.
*   **Administrative Status:** City (instance of); Capital of Gmina Konstancin-Jeziorna.

## FAQs
**What are the demographic details of Konstancin-Jeziorna?**
According to the Polish census of March 31, 2021, the city has a population of 17,157 people. The population is divided into 7,993 males and 9,164 females.

**Where is Konstancin-Jeziorna located administratively?**
The city is located in the Masovian Voivodeship in Poland and serves as the capital of Gmina Konstancin-Jeziorna. It is distinct from the gmina itself administratively but is located within it.

**What international relationships does the city maintain?**
Konstancin-Jeziorna is twinned with three administrative bodies: Denzlingen, Saint-Germain-en-Laye, and Kremenets.

**What are the city's geographic and time specifications?**
The city spans 17.74 square kilometers and utilizes the postal code 05-520. It operates on Central European Time (UTC+1) during standard time and Central European Summer Time (UTC+2) during daylight saving time.

## Why It Matters
Konstancin-Jeziorna serves as a significant local administrative hub as the capital of Gmina Konstancin-Jeziorna. With a history dating back to 1410, it represents a long-standing human settlement in the Masovian region. Its recognition with the Work Flag Order, 1st class highlights its notable status within Poland. The city maintains a robust international profile through its sister city relationships with Denzlingen (Germany), Saint-Germain-en-Laye (France), and Kremenets (Ukraine), fostering cross-cultural and administrative exchange.

## Notable For
*   **Long History:** The settlement dates back to 1410.
*   **International Twinning:** Maintains official relationships with Denzlingen, Saint-Germain-en-Laye, and Kremenets.
*   **Administrative Role:** Functions as the capital of Gmina Konstancin-Jeziorna.
*   **Recognition:** Recipient of the Work Flag Order, 1st class.
*   **Digital Presence:** Covered by Wikipedia in over 30 languages, including unique versions in Azerbaijani, Belarusian, and Silesian.

## Body

### Geography and Location
Konstancin-Jeziorna is situated in central Europe within the Masovian Voivodeship of Poland. The city's geographic coordinates are recorded as 52.0938° N, 21.11761° E, with an alternative coordinate set of 52.0833° N, 21.1166° E also referenced. The city covers a total area of 17.74 square kilometers. It is located within the administrative region of Gmina Konstancin-Jeziorna, of which it serves as the capital, although it is administratively distinct from the gmina entity itself.

### Demographics
The population of Konstancin-Jeziorna has seen variation over the early 21st century. Records from 2006 indicate a population of 23,694. However, the most recent data from the Polish census conducted on March 31, 2021, lists the population at 17,157. This census data breaks down the population into 7,993 males and 9,164 females. The city is classified as an "instance of" a city, defined as a large human settlement.

### Governance and Administration
The city operates under the standard time zone of Central European Time (UTC+01:00) and observes Central European Summer Time (UTC+02:00) during daylight saving periods. The local administrative structure is identified by the TERC municipality code 1418024 and the SIMC place ID 0920634. Vehicle registration in the city utilizes the licence plate code WPI. For postal services, the city uses the code 05-520.

### Symbols and Imagery
The city has distinct visual symbols, including a flag and a coat of arms. The flag is accessible via the file path `POL_Konstancin-Jeziorna_flag.svg`, and the coat of arms via `POL_Konstancin-Jeziorna_COA.svg`. An image of Park Zdrojowy im. Hrabiego Witolda Skórzewskiego is also associated with the city's visual representation.

### International and Cultural Relations
Konstancin-Jeziorna maintains active "town twinning" relationships with three specific administrative bodies:
*   **Denzlingen**
*   **Saint-Germain-en-Laye**
*   **Kremenets**

The city's cultural presence is cataloged globally through its "Topic's Main Category" on Wikimedia Commons and various library authority IDs.

### Knowledge Graph Identifiers
The city is indexed in numerous international databases and knowledge graphs, reflecting its global traceability:
*   **Wikidata:** Sitelink count of 33.
*   **GND ID:** 4489386-3.
*   **VIAF ID:** 125535687.
*   **Geonames ID:** 768216.
*   **Freebase ID:** /m/0287mxz.
*   **Library of Congress Authority ID:** n84050743.
*   **MusicBrainz Area ID:** 4157d323-69f8-4e8f-a83f-b5906baf6ad8.
*   **Other IDs:** Yale LUX ID, Who's on First ID, OpenWeatherMap City ID, and GADM ID POL.7.19.2_1.

### Wikipedia Presence
The entity is represented on Wikipedia across 31 language editions, including English, Polish, Russian, German, and French, as well as less common languages like Silesian (szl) and Volapük (vo). It maintains specific categories for maps, births, burials, and notable people associated with the location.

## References

1. archINFORM
2. Virtual International Authority File
3. [Source](https://www.worlddata.info/europe/poland/timezones.php)
4. Freebase Data Dumps. 2013
5. MusicBrainz
6. [Source](https://bdl.stat.gov.pl/api/v1/data/localities/by-unit/071413018024-0920634?var-id=1639616&format=jsonapi)
7. [Source](https://bdl.stat.gov.pl/api/v1/data/localities/by-unit/071413018024-0920634?var-id=1639618&format=jsonapi)
8. [Source](https://bdl.stat.gov.pl/api/v1/data/localities/by-unit/071413018024-0920634?var-id=1639617&format=jsonapi)
9. GeoNames
10. System for IDs and names of places
11. [archINFORM](https://www.archinform.net/service/wd_aiort.php)
12. National Library of Israel Names and Subjects Authority File