# Tres Ríos District, La Unión Canton, Cartago Province

> Source: https://wherepedia.org/costa-rica/cartago/la-union/tres-rios/

District · La Unión Canton 

# Tres Ríos

Tres Ríos is a district of Costa Rica in La Unión Canton, Cartago Province. It had an estimated **9,316 people** in 2021 on 2 km² (about 4,086 per km²). 6 named villages and localities are recorded here, and 83 mapped services such as hospitals, banks and schools.

- 9,316people (2021)
- 2.3km²
- 83mapped services
- 1,332 mtypical elevation

## How many people live in Tres Ríos?

Tres Ríos had an estimated **9,316 people** in 2021 — 8.2% of La Unión Canton, 184th of 472 districts. There are 1,007 women for every 1,000 men (above the La Unión Canton figure of 993). Spread over 2 km², that is about **4,086 people per km²**, 62nd of 472 districts.

15.2% of people are children under 15 and 9.7% are 65 or older; the median age is about 38 years (it is 34 across La Unión Canton). For every 100 people of working age (15–64) there are 33 children and older people.

0–4 ****445**

5–9 ****501**

10–14 ****467**

15–19 ****437**

20–24 ****581**

25–29 ****625**

30–34 ****992**

35–39 ****1,018**

40–44 ****864**

45–49 ****722**

50–54 ****666**

55–59 ****617**

60–64 ****480**

65–69 ****352**

70–74 ****214**

75+ ****335**

Source: [Costa Rica National Statistics Office (NSO) via OCHA HDX, population 2021 (COD-PS, CC BY-IGO)](https://data.humdata.org/dataset/cod-ps-cri).

## Where is Tres Ríos?

Tres Ríos lies in [La Unión Canton](https://wherepedia.org/costa-rica/cartago/la-union/), [Cartago Province](https://wherepedia.org/costa-rica/cartago/), [Costa Rica](https://wherepedia.org/costa-rica/). It borders 5 other districts: [Concepción](https://wherepedia.org/costa-rica/cartago/la-union/concepcion/), [Dulce Nombre](https://wherepedia.org/costa-rica/cartago/la-union/dulce-nombre/), [San Diego](https://wherepedia.org/costa-rica/cartago/la-union/san-diego/), [San Juan](https://wherepedia.org/costa-rica/cartago/la-union/san-juan/) and [San Rafael](https://wherepedia.org/costa-rica/cartago/la-union/san-rafael/). By area it is the 464th largest of 492 districts in Costa Rica. It covers 5.2% of [La Unión Canton](https://wherepedia.org/costa-rica/cartago/la-union/). The centre of Tres Ríos is about 11 km in a straight line from San José, the capital. The centre point is at 9.9069° N, 83.9892° W.

Source: [Costa Rica National Statistics Office (NSO) via OCHA HDX, administrative boundaries (COD-AB, CC BY-IGO)](https://data.humdata.org/dataset/cod-ab-cri).

## Things to see in and around Tres Ríos

OpenStreetMap lists 2 named sights in Tres Ríos: 2 galleries.

- Casa de la Cultura · gallery
- Casa de la Juventud · gallery

### Nearby, outside Tres Ríos

- Reserva Natural Protegida · nature reserve, Concepción2.8 km
- Casa Real Platino · gallery, Sánchez2.8 km
- Arte Blanco · gallery, Sánchez2.8 km
- Corredor Biológico Río María Aguilar · nature reserve, Concepción2.9 km
- Momnumento Las Fuentes del Padre Carazo · memorial, San Rafael3.3 km
- Mapa de Costa Rica · monument, Mata de Plátano5.4 km
- Casa Patrimonio Nacional · monument, Mata de Plátano5.5 km
- Muñeco del Herrero de San Antonio · monument, San Antonio6.4 km
- Parque de San Antonio · attraction, San Antonio6.4 km
- Mirador de Rancho Redondo · viewpoint, Rancho Redondo7.0 km
- Reserva Nacional Río Reventado · nature reserve, San Nicolás7.2 km
- Museo de Insectos · museum, Mercedes7.3 km

Source: [© OpenStreetMap contributors (ODbL), Geofabrik extract — named settlements](https://www.openstreetmap.org/copyright).

Named attractions, museums, viewpoints, historic sites and natural features mapped in OpenStreetMap. Places of worship are not listed.

## Know before you go: Tres Ríos

- Time zoneUTC−6, no daylight saving · America/Costa_Rica
- CurrencyColon (CRC)
- Country calling code+506
- LanguagesSpanish, English
- Plug typesType A, B · 120 V
- Driving sideRight
- Postcode format5 digits (#####)

### Nearest airports

- Tobías Bolaños International Airport (SYQ) · San Jose17 km
- Juan Santamaría International Airport (SJO) · San José (Alajuela)26 km

### Nearest railway station

Tres Ríos (Tres Ríos), about 0.5 km from the centre.

### Daylight

Days are longest in Jun (about 12.7 hours, sunrise around 05:15) and shortest in Dec (about 11.6 hours, sunrise around 05:44, sunset around 17:17).

Source: [GeoNames country and time-zone files (CC BY 4.0)](https://www.geonames.org/); [Wikidata (CC0) — plug types, mains voltage, driving side; retrieved 2026-11-03](https://www.wikidata.org/); [OurAirports (public domain)](https://ourairports.com/data/).

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 Tres Ríos

Open gazetteers list **6 villages, towns and localities** in Tres Ríos. The largest with a recorded population: Tres Ríos (10,430).

- El Invu
- Florencia
- La Antigua
- La Torre
- Rivera del Río
- Tres Ríos

Source: [GeoNames (CC BY 4.0) — settlements, natural and historic features](https://www.geonames.org/); [© OpenStreetMap contributors (ODbL), Geofabrik extract — named settlements](https://www.openstreetmap.org/copyright).

## Weather in Tres Ríos 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](https://power.larc.nasa.gov/).

## Nearest hospital, bank and fuel from Tres Ríos

Need Nearest mapped Distance 

Hospital Consultorio Médico La Carpintera · Tres Ríos 0.3 km [Map](https://www.openstreetmap.org/?mlat=9.90661&mlon=-83.98615#map=17/9.90661/-83.98615) 

Bank Banco Popular · Tres Ríos 0.3 km [Map](https://www.openstreetmap.org/?mlat=9.90707&mlon=-83.98627#map=17/9.90707/-83.98627) 

ATM BAC Credomatic · Curridabat 4.6 km [Map](https://www.openstreetmap.org/?mlat=9.92417&mlon=-84.02769#map=17/9.92417/-84.02769) 

Petrol pump ATM Promerica Servicentro Tinoco · Tres Ríos 0.2 km [Map](https://www.openstreetmap.org/?mlat=9.90586&mlon=-83.98809#map=17/9.90586/-83.98809) 

Hotel Hotel Hayyt · Sánchez 3.1 km [Map](https://www.openstreetmap.org/?mlat=9.91048&mlon=-84.01730#map=17/9.91048/-84.01730) 

Mall Centro Comercial Tres Ríos · Tres Ríos 0.1 km [Map](https://www.openstreetmap.org/?mlat=9.90577&mlon=-83.98844#map=17/9.90577/-83.98844) 

School Bee Happy Day Care · Tres Ríos 0.3 km [Map](https://www.openstreetmap.org/?mlat=9.90664&mlon=-83.99166#map=17/9.90664/-83.99166) 

College Escuela Social Juan XXIII - Centro de Eventos (Antiguo Seminario Menor) · San Rafael 2.7 km [Map](https://www.openstreetmap.org/?mlat=9.91902&mlon=-83.96835#map=17/9.91902/-83.96835) 

Police station Delegación Cantonal de Policía de La Unión · Tres Ríos 0.1 km [Map](https://www.openstreetmap.org/?mlat=9.90676&mlon=-83.98826#map=17/9.90676/-83.98826) 

Source: [Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL)](https://overturemaps.org/).

Straight-line distance from the centre of the division, within 40 km.

## Hospitals, banks and other services in Tres Ríos

Places mapped inside Tres Ríos in open map data, by type.

- Hospitals1
- Banks7
- Petrol pumps4
- Shopping malls8
- Schools8
- Pharmacies5
- Restaurants45
- Police stations2
- Dental clinics3

Source: [Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL)](https://overturemaps.org/).

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 Juan
- San Rafael
- San Ramón

## Quick answers

- Where is Tres Ríos?In La Unión Canton, Cartago Province, Costa Rica
- What is the population of Tres Ríos?9,316 (2021 estimate)
- What is the median age in Tres Ríos?About 38 years (2021 estimate)
- What is the population density of Tres Ríos?About 4,086 people per km²
- What borders Tres Ríos?Concepción, Dulce Nombre, San Diego, San Juan and San Rafael
- What is there to see in Tres Ríos?Casa de la Cultura, Casa de la Juventud
- What time zone is Tres Ríos in?UTC−6
- What currency is used in Tres Ríos?Colon (CRC)
- What language is spoken in Tres Ríos?Spanish, English (main languages nationally)
- How many villages are in Tres Ríos?6 named settlements (GeoNames, OpenStreetMap)
- What is the best time to visit Tres Ríos?January to April
- Where is the nearest hospital to Tres Ríos?Consultorio Médico La Carpintera, about 0.3 km from the centre
- Where is the nearest bank to Tres Ríos?Banco Popular, about 0.3 km from the centre
- Where is the nearest ATM to Tres Ríos?BAC Credomatic, about 4.6 km from the centre
- Where is the nearest petrol pump to Tres Ríos?ATM Promerica Servicentro Tinoco, about 0.2 km from the centre
- How many hospitals are in Tres Ríos?1 mapped
- How many banks are in Tres Ríos?7 mapped
- How many petrol pumps are in Tres Ríos?4 mapped
- What is the P-code of Tres Ríos?CR30301 (OCHA common operational dataset)