Population density: definition, measurement, factors, and uses Population density Population density measures how many people occupy a unit of land. This article explains how it is calculated, common types, factors that shape it, practical uses, and limitations…
Porrentruy District (Canton of Jura, Switzerland) Porrentruy District Administrative district in the canton of Jura, northwestern Switzerland; French-speaking, seat Porrentruy, composed of 36 municipalities and known for regional history and Jura lan…
Portugal: geography, history, culture and modern significance Portugal Concise encyclopedia entry on Portugal: location, physical features, historical development, colonial legacy, politics, economy, society and tourism, with pointers to major cultura…
Position (spatial concept) Position Position denotes where something is located in space or within an ordered system, described relative to a reference frame or by coordinates used in geography, mathematics, physics,…
United States Postal Abbreviations for States (USPS two‑letter codes) Postal abbreviations for states of the United States Overview, history, usage, and a complete list of the two‑letter United States Postal Service abbreviations for all 50 states, with notes on format and related codes.
Postal codes in Armenia: format, history and practical use Postal codes in Armenia A concise guide to Armenia's four-digit postal code system, the 2006 shift from six digits, addressing examples, and practical notes for sorting, mail and logistics.
Postal codes in France: system, format, uses and special cases Postal codes in France Overview of France's five-digit postal code system, its structure, relationship to départements and arrondissements, common uses, historical notes and notable exceptions.
Postal codes in Switzerland Overview of Switzerland's four-digit postal code system (PLZ/NPA): structure, brief history, typical uses, special cases, and practical examples for addresses.
Postal codes in Switzerland and Liechtenstein Overview of the 4‑digit postal code system shared by Switzerland and Liechtenstein: format, organization, history, uses, and practical notes for addressing and mail services.
Postal codes in the United Kingdom (postcodes) Postal codes in the United Kingdom Overview of UK postcodes: their structure, history, practical uses, special cases and limitations, with example breakdown and links to official resources.
Potomac River Major river of the eastern United States that flows roughly 665 km from headwaters in West Virginia and Virginia to the Chesapeake Bay, forming borders and passing Washington, D.C.
Požega-Slavonia County Požega-Slavonia County in eastern Croatia, centered on the town of Požega; known for the Požega Valley, viticulture, rolling hills and Papuk Nature Park; a region of agriculture, h…
Prague-West District Prague-West (okres Praha-západ) is a district in the Central Bohemian Region of the Czech Republic, occupying the western commuter belt of Prague with mixed rural landscape, towns,…
Prairie County, Montana Prairie County is a sparsely populated rural county in eastern Montana. The county seat is Terry and the 2010 U.S. Census recorded 1,179 residents. Agriculture and ranching shape l…
Praslin Quarter (Saint Lucia) Praslin Quarter Praslin Quarter is an administrative district on the eastern side of Saint Lucia, centered on the village of Praslin. It is largely rural, with coastal communities, local agricultu…
Pratapgarh district, Uttar Pradesh Pratapgarh is a district in the Indian state of Uttar Pradesh with its administrative headquarters at the town of Pratapgarh. It lies on the fertile Gangetic plains and has an agri…
Préchacq-Navarrenx: commune in Pyrénées-Atlantiques, southwestern France Préchacq-Navarrenx Préchacq-Navarrenx is a small rural commune in Pyrénées-Atlantiques, in the historic Béarn area of Nouvelle-Aquitaine, southwestern France. Agriculture and local heritage shape com…
Presidency Division (West Bengal) Presidency division An administrative division in the Indian state of West Bengal centered on Kolkata, comprising five districts with strong historical, economic and cultural ties to the Bengal Presid…
Presidente Hayes Department, Paraguay Presidente Hayes Department Administrative department in western Paraguay, part of the Gran Chaco; capital Villa Hayes. Named for US President Rutherford B. Hayes after a post-war arbitration; ISO code PY-15.
Prey Veng Province, Cambodia Prey Veng province Prey Veng is a largely rural province in southeastern Cambodia on the east bank of the Mekong River, known for rice agriculture, riverine landscapes and a provincial capital that s…
Prignitz (district) — northwestern Brandenburg, Germany Prignitz Prignitz is a rural district in northwestern Brandenburg, Germany. Formed in 1993 from earlier districts, it comprises agricultural plains, river corridors, small towns and areas o…
Prime Meridian: The zero‑degree line of longitude and its role in navigation Prime Meridian The Prime Meridian is the imaginary zero‑degree longitude line that passes through Greenwich; it defines east/west coordinates and historically set the basis for GMT and global tim…
Primorje-Gorski Kotar County A coastal and mountainous Croatian county centered on the port city of Rijeka, including the Bay of Kvarner, several Adriatic islands and the forested highlands of Gorski kotar.
Princess Elizabeth Land Sector of Antarctica claimed by Australia, lying between longitudes 73°E and 87°43′E; includes coastal sectors, interior ice sheet and several research stations used for scientific…
Pripyat (river) A lowland river of Eastern Europe that crosses Ukraine and Belarus into the Dnieper, known for its extensive marshes, ecological importance, and contamination from the Chernobyl ac…
Provence: geography, history, culture and economy of southeastern France Provence Provence is a historic region of southeastern France known for its Mediterranean climate, varied landscapes, Roman heritage, Provençal culture, lavender and olive agriculture, and…
Provence-Alpes-Côte d'Azur (PACA): geography, culture and administration Provence-Alpes-Côte d'Azur Provence-Alpes-Côte d'Azur (PACA) is a diverse region in southeastern France known for its Mediterranean coast, Alpine mountains, Provençal culture, major ports and the Riviera's t…
Province of A Coruña A Coruña is the northwestern, Atlantic-facing province of Galicia in Spain, noted for its rugged coastline, historic ports, Galician culture, and the pilgrimage city of Santiago de…
Province of Agrigento (Sicily, Italy) Province of Agrigento Italian province on Sicily's southern coast, known for ancient Greek ruins (Valley of the Temples), Mediterranean landscape, agriculture and tourism; capital city Agrigento.
Province of Alessandria Administrative province in southeastern Piedmont, Italy, with plains and Monferrato hills, known for historic towns (Alessandria, Casale Monferrato, Novi Ligure), wines such as Gav…
Province of Almería Southeastern province of Andalusia, Spain, known for arid landscapes, Mediterranean coast, greenhouse agriculture, film history and protected natural parks around Cabo de Gata.
Province of Avellino (Campania, Italy) Province of Avellino Italian province in Campania known for its mountainous landscape, historic towns, DOCG wines (Taurasi, Fiano), chestnuts and leather crafts; capital city Avellino.
Province of Ávila — geography, history, culture and notable features Province of Ávila Overview of Ávila Province in Castile and León, Spain: geography, climate, history, economy, culture, landmarks and practical notes for visitors and students of regional studies.
Province of Badajoz Badajoz is Spain's largest province by area, in Extremadura on the Portuguese border. Known for Roman Mérida, agriculture, and diverse landscapes from river valleys to plains.
Province of Bergamo Italian province in Lombardy centered on the city of Bergamo, known for its historic hilltop center, alpine landscapes, industrial economy and cultural heritage.
Province of Brescia (Lombardy, Italy) Province of Brescia Province in eastern Lombardy centered on the city of Brescia. Diverse landscapes from Alpine valleys to Lake Garda, with rich history, industry, agriculture and notable cultural si…
Province of Burgos Province in northern Spain, part of Castile and León. Known for the city of Burgos, medieval heritage, the Atapuerca sites, Ribera del Duero wine, varied landscapes and historic do…
Province of Cáceres Western Spanish province forming northern Extremadura. Capital Cáceres; notable for medieval heritage, natural parks (Monfragüe), rural dehesa landscapes, and historic towns like T…
Province of Cádiz (Andalusia, Spain) Province of Cádiz Cádiz is a coastal province in southwestern Andalusia, Spain, known for ancient Cádiz city, Jerez sherry, Tarifa windsports, strategic ports and a mix of Atlantic coastline, cultur…
Province of Cagliari A former Italian province in southern Sardinia centered on the port city of Cagliari; noted for its Mediterranean coast, agricultural plain, long history and role as regional trans…
Province of Castellón (Castelló) Province of Castellón Province in the northern Valencian Community of eastern Spain, bordering the Mediterranean. Known for ceramics, citrus orchards, mountain ranges and coastal tourism on the Costa de…
Province of Catanzaro, Italy Province of Catanzaro An overview of the Province of Catanzaro in Calabria: geography, history, economy, culture and notable places, with practical links to regional and national context.
Province of Como (Lombardy, Italy) Province of Como Northern Italian province centred on the city of Como on Lake Como, known for lakeside towns, Alpine foothills, historic silk production, cross‑border links with Switzerland and a…
Province of Córdoba, Spain Province of Córdoba (Spain) Córdoba is a province in southern Spain known for its historic capital, varied landscapes across the Guadalquivir valley and mountain ranges, and cultural landmarks from Roman and…
Province of Cosenza Administrative province in northern Calabria, southern Italy, noted for its mountains, coastal stretches, historic towns, national parks and a mix of agricultural and touristic eco…
Province of Cremona An overview of the Province of Cremona in southern Lombardy, Italy: geography, history, culture, economy, and its international reputation for violin making and gastronomy.
Province of Crotone Italian province on Calabria's Ionian coast centered on the city of Crotone; known for ancient Greek heritage, seaside landscapes, agriculture, and marine protected areas.
Province of Cuenca, Castilla‑La Mancha, Spain Province of Cuenca Cuenca is an eastern province of Castilla‑La Mancha in central Spain. It combines a sparsely populated highland interior, deep river gorges and a UNESCO‑listed historic capital cit…
