District · La Unión Canton
# San Juan

San Juan is a district of Costa Rica in La Unión Canton, Cartago Province. It had an estimated 15,634 people in 2021 on 4 km² (about 3,958 per km²). 10 named villages and localities are recorded here, and 67 mapped services such as hospitals, banks and schools.
- 15,634 people (2021)
- 4.0 km²
- 67 mapped services
- 1,291 m typical elevation

## How many people live in San Juan?

San Juan had an estimated 15,634 people in 2021 — 13.8% of La Unión Canton, 107th of 472 districts. There are 996 women for every 1,000 men (close to the La Unión Canton figure of 993). Spread over 4 km², that is about 3,958 people per km², 63rd of 472 districts.

18.9% of people are children under 15 and 9.5% are 65 or older; the median age is about 35 years (it is 34 across La Unión Canton). For every 100 people of working age (15–64) there are 40 children and older people.
- 0–4 910
- 5–9 1,053
- 10–14 989
- 15–19 982
- 20–24 1,097
- 25–29 1,168
- 30–34 1,485
- 35–39 1,433
- 40–44 1,213
- 45–49 1,040
- 50–54 1,009
- 55–59 978
- 60–64 793
- 65–69 595
- 70–74 381
- 75+ 508

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 La Unión Canton, Cartago Province, Costa Rica. It borders 6 other districts: Concepción, Río Azul, San Diego, Sánchez, Tirrases and Tres Ríos. By area it is the 429th largest of 492 districts in Costa Rica. It covers 8.9% of La Unión Canton. The centre of San Juan is about 9.2 km in a straight line from San José, the capital. The centre point is at 9.9103° N, 84.0044° 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

### Nearby, outside San Juan
- Casa Real Platino · gallery, Sánchez 1.1 km
- Arte Blanco · gallery, Sánchez 1.1 km
- Casa de la Juventud · gallery, Tres Ríos 1.7 km
- Casa de la Cultura · gallery, Tres Ríos 1.8 km
- Reserva Natural Protegida · nature reserve, Concepción 3.3 km
- Corredor Biológico Río María Aguilar · nature reserve, Concepción 3.5 km
- Mapa de Costa Rica · monument, Mata de Plátano 4.8 km
- Muñeco del Herrero de San Antonio · monument, San Antonio 4.8 km
- Parque de San Antonio · attraction, San Antonio 4.9 km
- Momnumento Las Fuentes del Padre Carazo · memorial, San Rafael 4.9 km
- Museo de Insectos · museum, Mercedes 5.7 km
- Casa Patrimonio Nacional · monument, Mata de Plátano 5.7 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
- Tobías Bolaños International Airport (SYQ) · San Jose 16 km
- Juan Santamaría International Airport (SJO) · San José (Alajuela) 24 km

### Nearest railway station

Tres Ríos (Tres Ríos), about 1.9 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 05:44, sunset around 17:17).

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 1,264 m and 1,315 m above sea level (median 1,291 m).
- Araucaria
- Araucarias
- Danza del Sol
- Herrán
- Llano Verde
- Loma Verde
- San Juan
- San Juan Viejo
- Santa Lucía
- Villas de Ayarco

Source: GeoNames (CC BY 4.0) — settlements, natural and historic features; © OpenStreetMap contributors (ODbL), Geofabrik extract — named settlements.

## Weather in San Juan and the best time to visit

Using the climate of La Unión Canton, the warmest month is May (average 21 °C) and the coolest is Jan (19 °C). About 2,266 mm of rain falls in a year; the wettest month is Oct (285 mm) and the driest Feb (70 mm). The most comfortable months for a visit are January to April.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
| Month | Average °C | Rain mm |
| Jan | 19 | 119 |
| Feb | 19 | 70 |
| Mar | 20 | 76 |
| Apr | 21 | 117 |
| May | 21 | 243 |
| Jun | 21 | 239 |
| Jul | 20 | 253 |
| Aug | 21 | 214 |
| Sep | 21 | 231 |
| Oct | 20 | 285 |
| Nov | 20 | 258 |
| Dec | 20 | 162 |

Source: NASA POWER climatology, retrieved 2026-10-29.

## Nearest hospital, bank and fuel from San Juan
| Need | Nearest mapped | Distance | |
| Hospital | Medicentro Salud Integral · San Diego | 0.8 km | Map |
| Bank | BNCR · San Juan | 0.2 km | Map |
| ATM | BAC Credomatic · Curridabat | 3.0 km | Map |
| Petrol pump | Servicentro De Ayarco · San Juan | 1.3 km | Map |
| Hotel | Hotel Hayyt · Sánchez | 1.4 km | Map |
| Mall | Plaza Musical · San Juan | 0.3 km | Map |
| School | Sistema Educativo Saint Clare · San Juan | 0.5 km | Map |
| College | Universidad Juan Pablo II · Sánchez | 1.7 km | Map |
| Police station | Delegación San Juan · San Diego | 0.6 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.
- Banks 3
- Petrol pumps 2
- Shopping malls 11
- Schools 7
- Pharmacies 4
- Restaurants 32
- Police stations 1
- Dental clinics 7

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 La Unión Canton
- Concepción
- Dulce Nombre
- Río Azul
- San Diego
- San Rafael
- San Ramón
- Tres Ríos

## Quick answers
- Where is San Juan? In La Unión Canton, Cartago Province, Costa Rica
- What is the population of San Juan? 15,634 (2021 estimate)
- What is the median age in San Juan? About 35 years (2021 estimate)
- What is the population density of San Juan? About 3,958 people per km²
- What borders San Juan? Concepción, Río Azul, San Diego, Sánchez, Tirrases and Tres Ríos
- What is there to see in San Juan? Casa Real Platino, Arte Blanco, Casa de la Juventud, Casa de la Cultura
- 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 1,264 m and 1,315 m
- What is the best time to visit San Juan? January to April
- Where is the nearest hospital to San Juan? Medicentro Salud Integral, about 0.8 km from the centre
- Where is the nearest bank to San Juan? BNCR, about 0.2 km from the centre
- Where is the nearest ATM to San Juan? BAC Credomatic, about 3.0 km from the centre
- Where is the nearest petrol pump to San Juan? Servicentro De Ayarco, about 1.3 km from the centre
- How many banks are in San Juan? 3 mapped
- How many petrol pumps are in San Juan? 2 mapped
- What is the P-code of San Juan? CR30303 (OCHA common operational dataset)

At a glance
- Type: District
- Area: 3.95 km²
- P-code: CR30303
- Canton: La Unión Canton

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Canonical: https://wherepedia.org/costa-rica/cartago/la-union/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.