# Opoczno

> town in Poland

**Wikidata**: [Q994271](https://www.wikidata.org/wiki/Q994271)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Opoczno)  
**Source**: https://4ort.xyz/entity/opoczno

## Summary
Opoczno is a town in Poland, located within the continent of Europe at coordinates 51.383°N 20.283°E. Serving as the capital of both Opoczno County and Gmina Opoczno, the town covers an area of 25 square kilometers and sits at an elevation of 190 meters above sea level. Founded in 1400, Opoczno has a population of approximately 19,246 residents as of 2023.

## Key Facts
- **Country:** Poland
- **Foundation Date:** 1400
- **Population:** 19,246 (2023); 19,738 (2021 Census)
- **Area:** 25 square kilometres
- **Elevation:** 190 metres above sea level
- **Coordinates:** 51.383333333333 latitude, 20.283333333333 longitude
- **Time Zone:** Central European Time (UTC+01:00) and Central European Summer Time (UTC+02:00)
- **Capital Of:** Opoczno County, Gmina Opoczno
- **Postal Code:** 26-300
- **Licence Plate Code:** EOP
- **Local Dialing Code:** 44
- **UN/LOCODE:** PLOPZ
- **Official Website:** http://www.opoczno.pl
- **Instance Of:** Town, City

## FAQs
**What is the population of Opoczno?**
As of January 1, 2023, the population of Opoczno is 19,246 according to demographic balance data. The 2021 Polish Census recorded a population of 19,738, consisting of 9,480 males and 10,258 females.

**Where is Opoczno located geographically and administratively?**
Geographically, Opoczno is situated in Europe at 51.383°N latitude and 20.283°E longitude. Administratively, it serves as the capital of both Opoczno County and Gmina Opoczno in Poland.

**What are the sister cities of Opoczno?**
Opoczno is twinned with four administrative bodies: Bytča, Jarocin, Zviahel, and Sloviansk.

**What bibliographic sources describe Opoczno?**
The town is described by several historical and encyclopedic sources, including the *New Encyclopedic Dictionary*, *Encyclopaedia Hebraica* (Volume 2, pages 48-49), and *Meyers Konversations-Lexikon* (4th edition, 1885–1890).

## Why It Matters
Opoczno serves as a significant local administrative hub, functioning as the seat of power for both the Opoczno County and the Gmina Opoczno. Its long history, dating back to its inception in 1400, marks it as a enduring settlement in the region. The town maintains an international profile through active sister-city partnerships with municipalities in Slovakia, Poland, and Ukraine (Bytča, Jarocin, Zviahel, and Sloviansk), fostering cross-border cultural and administrative exchange. Furthermore, it is a recognized entity in global knowledge systems, indexed by major libraries and databases such as the Library of Congress, VIAF, and GeoNames.

## Notable For
- Holding a distinct administrative role as the capital of both a county (Opoczno County) and a gmina (Gmina Opoczno).
- A history spanning over six centuries, with an inception date of 1400.
- International cooperation through town twinning with four cities, including Sloviansk and Zviahel in Ukraine.
- Inclusion in the United Nations Code for Trade and Transport Locations (UN/LOCODE) with the code PLOPZ.
- Being the subject of entries in prestigious historical encyclopedias like *Meyers Konversations-Lexikon* and *Encyclopaedia Hebraica*.

## Body

### Geography and Demographics
Opoczno is located in Europe within the borders of Poland. Its precise coordinates are 51.383333333333 latitude and 20.283333333333 longitude. The town covers a total surface area of 25 square kilometres and is situated at an elevation of 190 metres above sea level.

The town's population has fluctuated slightly over the early 21st century. Historical data shows a population of 22,613 in 2005 and 22,583 in 2011. By 2016, the population was recorded at 21,780. The most recent figures from the 2021 Polish Census indicate a population of 19,738, broken down into 9,480 males and 10,258 females. As of January 1, 2023, the population stands at 19,246 based on demographic balance methodology.

### Administration and Infrastructure
Established in 1400, Opoczno functions as an urban center classified as both a town and a city. It is the administrative capital for the surrounding region, specifically designated as the capital of Opoczno County and Gmina Opoczno. The town has been located within Gmina Opoczno since 1919; prior to that, from 1837 to 1919, it was situated in a region identified administratively as Q21843736.

Key administrative identifiers for Opoczno include:
- **TERC Municipality Code:** 1007044
- **SIMC Place ID:** 0967943
- **Licence Plate Code:** EOP
- **Local Dialing Code:** 44
- **Postal Code:** 26-300

The town operates under the Central European Time zone (UTC+01:00) during standard time and Central European Summer Time (UTC+02:00) during daylight saving time.

### International Relations
Opoczno maintains active partnerships with several international towns through its twinning program. These sister cities include:
- **Bytča**
- **Jarocin**
- **Zviahel**
- **Sloviansk**

### External Identifiers and Media
Opoczno is indexed in numerous international databases and library systems, reflecting its global recognition. These identifiers include:
- ** VIAF ID:** 139614260
- **GND ID:** 4434125-8
- **Library of Congress Authority ID:** n85033997
- **GeoNames ID:** 763111
- **MusicBrainz Area ID:** 9f929736-58a4-41f7-b349-657ae62f57a3
- **Freebase ID:** /m/0228st

The town possesses official heraldic and civic symbols, including a coat of arms and a flag. It also hosts a museum digital place ID (27983). Wikipedia articles about Opoczno exist in over 40 languages, including English, German, French, Russian, and Hebrew. Civic categories exist for maps of the town, births occurring in Opoczno, and people from Opoczno.

## References

1. [Source](https://www.opoczno.pl/miasto-i-gmina/miasta-partnerskie.html)
2. Virtual International Authority File
3. [Source](https://www.worlddata.info/europe/poland/timezones.php)
4. Freebase Data Dumps. 2013
5. Czech National Authority Database
6. MusicBrainz
7. [Source](https://bdl.stat.gov.pl/api/v1/data/localities/by-unit/051011707044-0967943?var-id=1639616&format=jsonapi)
8. [Source](http://pop-stat.mashke.org/poland-cities.htm)
9. [Source](https://bdl.stat.gov.pl/api/v1/data/localities/by-unit/051011707044-0967943?var-id=1639618&format=jsonapi)
10. [Source](https://bdl.stat.gov.pl/api/v1/data/localities/by-unit/051011707044-0967943?var-id=1639617&format=jsonapi)
11. GeoNames
12. [Source](https://service.unece.org/trade/locode/pl.htm)
13. Quora