District · Poás Canton # San Juan San Juan is a district of Costa Rica in Poás Canton, Alajuela Province. It had an estimated 5,564 people in 2021 on 16 km² (about 340 per km²). 10 named villages and localities are recorded here, and 22 mapped services such as hospitals, banks and schools. - 5,564 people (2021) - 16.4 km² - 22 mapped services - 1,282 m typical elevation ## How many people live in San Juan? San Juan had an estimated 5,564 people in 2021 — 16.1% of Poás Canton, 277th of 472 districts. There are 970 women for every 1,000 men (close to the Poás Canton figure of 971). Spread over 16 km², that is about 340 people per km², 183rd of 472 districts. 21.9% of people are children under 15 and 8.9% are 65 or older; the median age is about 33 years (it is 32 across Poás Canton). For every 100 people of working age (15–64) there are 45 children and older people. - 0–4 405 - 5–9 402 - 10–14 414 - 15–19 400 - 20–24 445 - 25–29 460 - 30–34 511 - 35–39 470 - 40–44 383 - 45–49 315 - 50–54 319 - 55–59 297 - 60–64 250 - 65–69 192 - 70–74 127 - 75+ 174 Source: Costa Rica National Statistics Office (NSO) via OCHA HDX, population 2021 (COD-PS, CC BY-IGO). ## Where is San Juan? San Juan lies in Poás Canton, Alajuela Province, Costa Rica. It borders 7 other districts: Sabana Redonda, San Isidro, San José, San Pedro, San Rafael, Sarapiquí and Toro Amarillo. By area it is the 319th largest of 492 districts in Costa Rica. It covers 22.0% of Poás Canton. The centre of San Juan is about 28 km in a straight line from San José, the capital. The centre point is at 10.1356° N, 84.2346° W. Source: Costa Rica National Statistics Office (NSO) via OCHA HDX, administrative boundaries (COD-AB, CC BY-IGO). ## Things to see in and around San Juan OpenStreetMap lists 3 named sights in San Juan: 1 viewpoint; 1 volcano; 1 waterfall. - Catarata don Luis · waterfall - Vísta del Cráter del Volcán Poás · viewpoint - Poás · volcano ### Nearby, outside San Juan - El Escondite de La Montaña · attraction, Sabana Redonda 2.3 km - Finca Sircof · attraction, San José 3.4 km - Doka Estate Costa Rica Gourmet Coffee · attraction, Sabanilla 4.8 km - Catarata El Paraíso · waterfall, Bolivar 5.3 km - Cascada Sabanilla · waterfall, San Isidro 5.8 km - Vísta de la Laguna Botos · viewpoint, Sabana Redonda 6.0 km - Tour del Café Tío José · attraction, San Roque 6.4 km - Parque de Diversiones Sabanilla · theme park, Sabanilla 6.8 km - Monumento a los 2 primeros muertos de la guerra de 1948 · monument, Sabanilla 7.2 km - Casa quemada · ruins, Sabanilla 8.0 km - Antiguo Mirador El Cerro · ruins, Sabanilla 8.1 km - Fábrica Potrerillos · ruins, San Isidro 9.0 km Source: © OpenStreetMap contributors (ODbL), Geofabrik extract — named settlements. Named attractions, museums, viewpoints, historic sites and natural features mapped in OpenStreetMap. Places of worship are not listed. ## Know before you go: San Juan - Time zone UTC−6, no daylight saving · America/Costa_Rica - Currency Colon (CRC) - Country calling code +506 - Languages Spanish, English - Plug types Type A, B · 120 V - Driving side Right - Postcode format 5 digits (#####) ### Nearest airports - Juan Santamaría International Airport (SJO) · San José (Alajuela) 16 km - Tobías Bolaños International Airport (SYQ) · San Jose 22 km ### Nearest railway station Hospital Alajuela (Alajuela), about 14 km from the centre. ### Daylight Days are longest in Jun (about 12.7 hours, sunrise around 05:15) and shortest in Dec (about 11.5 hours, sunrise around 05:45, sunset around 17:18). Source: GeoNames country and time-zone files (CC BY 4.0); Wikidata (CC0) — plug types, mains voltage, driving side; retrieved 2026-11-03; OurAirports (public domain). Airports with scheduled passenger flights; straight-line distances. Daylight is calculated for the 15th of each month in local standard time. Check entry and visa rules with official government sources before travelling. ## Villages and localities in San Juan Open gazetteers list 10 villages, towns and localities in San Juan. Settlements here lie between about 1,164 m and 2,315 m above sea level (median 1,282 m). - Altura - América - Colibri - Corazón de Jesús - El INVU - Guapinol - Mastate - San Juan Norte - San Juan Sur - Tablones Source: GeoNames (CC BY 4.0) — settlements, natural and historic features; © OpenStreetMap contributors (ODbL), Geofabrik extract — named settlements. ## Landscape and landmarks of San Juan Named natural and historic features inside San Juan, from the GeoNames gazetteer. ### Water 1 river or stream. - Quebrada Prendilas Source: GeoNames (CC BY 4.0) — settlements, natural and historic features. Places of worship are not listed. Elevations are from the GeoNames terrain model and are approximate. ## Weather in San Juan and the best time to visit Using the climate of Poás Canton, the warmest month is Apr (average 25 °C) and the coolest is Dec (22 °C). About 1,793 mm of rain falls in a year; the wettest month is Oct (301 mm) and the driest Feb (22 mm). The most comfortable months for a visit are December to April. - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec | Month | Average °C | Rain mm | | Jan | 23 | 38 | | Feb | 24 | 22 | | Mar | 25 | 29 | | Apr | 25 | 76 | | May | 24 | 220 | | Jun | 24 | 209 | | Jul | 23 | 184 | | Aug | 23 | 198 | | Sep | 23 | 256 | | Oct | 23 | 301 | | Nov | 22 | 188 | | Dec | 22 | 70 | Source: NASA POWER climatology, retrieved 2026-10-29. ## Nearest hospital, bank and fuel from San Juan | Need | Nearest mapped | Distance | | | Hospital | Consultorio Médico Dr. Luis Varela · San Rafael | 5.5 km | Map | | Bank | Grupo Mutual · San Pedro | 6.6 km | Map | | ATM | BCR · San Rafael | 5.4 km | Map | | Petrol pump | Gasolinera Volcán Poás · Sabanilla | 4.8 km | Map | | Hotel | Hotel Peña del Gallo · San Juan | 1.0 km | Map | | Mall | Plaza Parque Puriscal · San José | 7.1 km | Map | | School | Escuela San Juan Norte · San Juan | 1.9 km | Map | | College | Liceo San Rafael · San Juan | 5.2 km | Map | | Police station | Policía Turística de Alajuela · Sabanilla | 4.9 km | Map | Source: Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL). Straight-line distance from the centre of the division, within 40 km. ## Hospitals, banks and other services in San Juan Places mapped inside San Juan in open map data, by type. - Hotels 6 - Schools 2 - Colleges and universities 1 - Restaurants 12 - Police stations 1 Source: Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL). Coverage depends on what has been mapped; contact details are not shown. ## Other districts in Poás Canton - Carrillos - Sabana Redonda - San Pedro - San Rafael ## Quick answers - Where is San Juan? In Poás Canton, Alajuela Province, Costa Rica - What is the population of San Juan? 5,564 (2021 estimate) - What is the median age in San Juan? About 33 years (2021 estimate) - What is the population density of San Juan? About 340 people per km² - What borders San Juan? Sabana Redonda, San Isidro, San José, San Pedro, San Rafael, Sarapiquí and Toro Amarillo - What is there to see in San Juan? Catarata don Luis, Poás, Vísta del Cráter del Volcán Poás - What time zone is San Juan in? UTC−6 - What currency is used in San Juan? Colon (CRC) - What language is spoken in San Juan? Spanish, English (main languages nationally) - How many villages are in San Juan? 10 named settlements (GeoNames, OpenStreetMap) - What is the elevation of San Juan? Settlements lie between 1,164 m and 2,315 m - What is the best time to visit San Juan? December to April - Where is the nearest hospital to San Juan? Consultorio Médico Dr. Luis Varela, about 5.5 km from the centre - Where is the nearest bank to San Juan? Grupo Mutual, about 6.6 km from the centre - Where is the nearest ATM to San Juan? BCR, about 5.4 km from the centre - Where is the nearest petrol pump to San Juan? Gasolinera Volcán Poás, about 4.8 km from the centre - What is the P-code of San Juan? CR20802 (OCHA common operational dataset) At a glance - Type: District - Area: 16.4 km² - P-code: CR20802 - Canton: Poás Canton --- Canonical: https://wherepedia.org/costa-rica/alajuela/poas/san-juan/ · Updated 2026-11-03 · Data: national censuses and statistics offices (sources named in each section); © OpenStreetMap contributors (ODbL); Overture Maps; GeoNames; NASA POWER.