# San Martin Department, Peru – Provinces, Population & Map

> Source: https://wherepedia.org/peru/san-martin/

Department · Peru 

# San Martin Department

San Martin Department is a department of Peru. It had an estimated **945,523 people** in 2024 on 51,005 km² (about 19 per km²). Its main town is Moyobamba. It is divided into 10 provinces. 1,325 named villages and localities are recorded here, and 2,841 mapped services such as hospitals, banks and schools.

- 945,523people (2024)
- 51,005km²
- 10provinces
- 2,841mapped services

## How many people live in San Martin Department?

San Martin Department had an estimated **945,523 people** in 2024 — 2.8% of Peru, 14th of 25 departments. There are 907 women for every 1,000 men (below the Peru figure of 1,017). Spread over 51,005 km², that is about **19 people per km²**, 16th of 25 departments.

28.8% of people are children under 15 and 6.7% are 65 or older; the median age is about 28 years (it is 32 across Peru). For every 100 people of working age (15–64) there are 55 children and older people.

0–4 ****92,759**

5–9 ****91,319**

10–14 ****88,610**

15–19 ****86,139**

20–24 ****74,326**

25–29 ****71,917**

30–34 ****67,796**

35–39 ****64,935**

40–44 ****61,884**

45–49 ****56,414**

50–54 ****47,518**

55–59 ****42,831**

60–64 ****36,108**

65–69 ****25,183**

70–74 ****16,717**

75–79 ****10,329**

80+ ****10,738**

Source: [Instituto Nacional de Estadística e Informática - INEI via OCHA HDX, population 2024 (COD-PS, CC BY-IGO)](https://data.humdata.org/dataset/cod-ps-per).

## Where is San Martin Department?

San Martin Department lies in [Peru](https://wherepedia.org/peru/). It borders 4 other departments: [Amazonas Department](https://wherepedia.org/peru/amazonas/), [Huanuco Department](https://wherepedia.org/peru/huanuco/), [La Libertad Department](https://wherepedia.org/peru/la-libertad/) and [Loreto Department](https://wherepedia.org/peru/loreto/). By area it is the 7th largest of 25 departments in Peru. It covers 4.0% of [Peru](https://wherepedia.org/peru/). The centre of San Martin Department is about 550 km in a straight line from Lima, the capital. The centre point is at 7.1011° S, 76.8675° W.

Source: [Instituto Geográfico Nacional - IGN via OCHA HDX, administrative boundaries (COD-AB, CC BY-IGO)](https://data.humdata.org/dataset/cod-ab-per).

## Things to see in and around San Martin Department

OpenStreetMap lists 184 named sights in San Martin Department: 82 attractions; 51 caves; 16 waterfalls; 11 nature reserves; 11 viewpoints; 4 memorials; 3 museums; 2 national parks; 1 zoo; 1 hot spring; 1 volcano; 1 monument.

- Centro de Interpretación · museum
- Museo Chanka · museum
- Museo de Ayahusca · museum
- CASCADA DE ZAPATOSUA · waterfall
- Cascada · waterfall
- Cascada Chirapillo · waterfall
- Cascada Quinti Yacu · waterfall
- Cascada Sunipy Kausani (Toroyacu) · waterfall
- Cascada Timon · waterfall
- Cascada de Chiriyacu · waterfall
- Cascada de Paucaryacu · waterfall
- Catarata de Huacamaillo · waterfall
- Catarata de Tununtunumba · waterfall
- Chaquashca Waterfall · waterfall
- Lahuarpia · waterfall
- Pacha · waterfall
- Pishurayacu Waterfall · waterfall
- Pucayacu · waterfall
- Pucayakillo Waterfall · waterfall
- Cordillera Azul National Park · national park
- Río Abiseo National Park · national park
- Alto Mayo Protection Forest · nature reserve
- Ampinakuna Sacha Conservation Concession · nature reserve
- Concesión para Conservación Valle del Biavo · nature reserve
- Cordillera Escalera Regional Conservation Area · nature reserve
- Los Bosques de Pailayco Conservation Concession · nature reserve
- Ojos de Agua Conservation Concession · nature reserve
- Sacha Runa Conservation Concession · nature reserve
- Sangapillal Conservation Concession · nature reserve
- Tingana · nature reserve

…and 154 more.

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: San Martin Department

- Time zoneUTC−5, no daylight saving · America/Lima
- CurrencySol (PEN)
- Country calling code+51
- LanguagesSpanish, Quechua, Aymara
- Plug typesType A, B, C · 220 V
- Driving sideRight
- Postcode format5 digits (#####)

### Nearest airports

- Cadete FAP Guillermo Del Castillo Paredes Airport (TPP) · Tarapoto86 km
- Chachapoyas Airport (CHH) · Chachapoyas148 km

### Daylight

Days are longest in Dec (about 12.5 hours, sunrise around 05:46) and shortest in Jun (about 11.7 hours, sunrise around 06:16, sunset around 17:58).

Month Sunrise Sunset Daylight 

Jan 06:01 18:30 12.5 h 

Feb 06:11 18:31 12.3 h 

Mar 06:12 18:21 12.2 h 

Apr 06:09 18:06 12.0 h 

May 06:09 17:57 11.8 h 

Jun 06:16 17:58 11.7 h 

Jul 06:20 18:05 11.7 h 

Aug 06:16 18:08 11.9 h 

Sep 06:01 18:04 12.1 h 

Oct 05:45 18:00 12.3 h 

Nov 05:39 18:05 12.4 h 

Dec 05:46 18:18 12.5 h 

Source: [GeoNames country and time-zone files (CC BY 4.0)](https://www.geonames.org/); [Wikidata (CC0) — plug types, mains voltage, driving side; retrieved 2026-11-02](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.

## Provinces of San Martin Department

Province Area km² Districts Services 

[Bellavista Province](https://wherepedia.org/peru/san-martin/bellavista/) 8,054 6 176 

[El Dorado Province](https://wherepedia.org/peru/san-martin/el-dorado/) 1,293 5 122 

[Huallaga Province](https://wherepedia.org/peru/san-martin/huallaga/) 2,416 6 83 

[Lamas Province](https://wherepedia.org/peru/san-martin/lamas/) 4,742 11 289 

[Mariscal Caceres Province](https://wherepedia.org/peru/san-martin/mariscal-caceres/) 14,252 5 195 

[Moyobamba Province](https://wherepedia.org/peru/san-martin/moyobamba/) 3,920 6 479 

[Picota Province](https://wherepedia.org/peru/san-martin/picota/) 2,108 10 98 

[Rioja Province](https://wherepedia.org/peru/san-martin/rioja/) 2,650 9 253 

[San Martin Province](https://wherepedia.org/peru/san-martin/san-martin/) 5,541 14 895 

[Tocache Province](https://wherepedia.org/peru/san-martin/tocache/) 6,028 5 251 

Source: [Instituto Geográfico Nacional - IGN via OCHA HDX, administrative boundaries (COD-AB, CC BY-IGO)](https://data.humdata.org/dataset/cod-ab-per); [GeoNames (CC BY 4.0) — settlements, natural and historic features](https://www.geonames.org/); [Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL)](https://overturemaps.org/).

## Largest towns in San Martin Department

- Moyobamba50,073
- Juanjuí37,715
- Tocache29,029
- Rioja25,057
- La Banda24,932
- Uchiza17,742
- Bellavista15,231
- Saposoa14,894
- Tabalosos14,744
- Lamas13,693
- Soritor10,858
- Sisa9,477
- Chazuta8,029
- Tabaloslos7,282
- Jepelacio7,150

Source: [GeoNames (CC BY 4.0) — settlements, natural and historic features](https://www.geonames.org/).

Populations as recorded in GeoNames, which may be older than the estimates above.

## Landscape and landmarks of San Martin Department

Named natural and historic features inside San Martin Department, from the GeoNames gazetteer.

### Water

242 rivers and streams; 15 lakes.

- Agua Blanca
- Brazo del Río Huallaga
- Cachiyacu
- Challuaza
- Cucaracha
- Laguna Chúcara
- Laguna Colorada
- Laguna El Gato
- Laguna Escondida
- Laguna Honda
- Laguna Huayabamba
- Laguna Jacinto
- Laguna La Mona
- Laguna Las Momias
- Laguna Matacocha
- Laguna Rieuricocha
- Laguna San Pedro
- Laguna Sauce
- Laguna Ushnomita
- Laguna Verde
- Quebrada Aguanorarca
- Quebrada Aguasclaras
- Quebrada Ahuashiyacu
- Quebrada Algarrobo

…and 233 more.

### Coast and islands

2 islands.

- Isla Congompe
- Santa Ana

### Hills and mountains

73 mountains; 1 hill; 1 mountain pass.

- Cerro Alto Nariz · 4,333 m
- Cerro Chucaras · 4,309 m
- Cerro Antarpus · 4,265 m
- Cerro Cinco Peñas · 4,250 m
- Cerro Peña Blanca · 4,250 m
- Cerro Colorado · 4,242 m
- Cerro Alto de Pacho · 4,232 m
- Cerro Huarhuarcasho · 4,197 m
- Cerro Tayango · 4,188 m
- Cerro Alpamachay · 4,175 m
- Cerro Loma de Coche · 4,171 m
- Cerro Alto Negro · 4,167 m
- Cerros Huilcachan · 4,167 m
- Cerro La Muñanca · 4,162 m
- Cerro Mojón · 4,153 m
- Cerro Danzana Pampa · 4,141 m
- Cerro Porvenir · 4,135 m
- Cerro Sumanga · 4,125 m
- Cerro Pagrapagra · 4,096 m
- Cerro Peña Grande · 4,096 m
- Cerro Alto del Toro · 4,087 m
- Cerro Cahuacocha · 4,027 m
- Cerro Tronco Podrido · 3,998 m
- Cerro Ventanilla · 3,908 m

…and 51 more.

### Forests and nature

2 parks; 1 nature reserve.

- Alto Mayo Protection Forest
- Parque Nacional Cordillera Azul
- Rio Abiseo National Park

### Getting around

11 bridges; 8 airports; 1 port.

- Huallaga Airport
- Juan Simons Vela Airport
- Juanjuí Airport
- Moyobamba Airport
- Puente Ahuashiyacu
- Puente Colombia
- Puente Huaynabe
- Puente Indoche
- Puente Naranjillo
- Puente Negro
- Puente Picota
- Puente Porongo
- Puente Pucayacu
- Puente Romero
- Puente Uchiza
- Puerto Los Angeles
- Saposoa Airport
- Tarapoto
- Tocache Airstrip
- Uchiza Airport

Source: [GeoNames (CC BY 4.0) — settlements, natural and historic features](https://www.geonames.org/).

Places of worship are not listed. Elevations are from the GeoNames terrain model and are approximate.

## Weather in San Martin Department and the best time to visit

In San Martin Department, the warmest month is Sep (average 25 °C) and the coolest is Jun (23 °C). About 793 mm of rain falls in a year; the wettest month is Apr (94 mm) and the driest Aug (28 mm). The most comfortable months for a visit are **January to December**.

- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec

Month Average °C Rain mm 

Jan 24 69 

Feb 24 81 

Mar 23 90 

Apr 23 94 

May 23 68 

Jun 23 46 

Jul 23 38 

Aug 24 28 

Sep 25 47 

Oct 25 74 

Nov 24 88 

Dec 24 71 

Source: [NASA POWER climatology, retrieved 2026-10-29](https://power.larc.nasa.gov/).

## Hospitals, banks and other services in San Martin Department

Places mapped inside San Martin Department in open map data, by type — each number opens the full list with locations.

- Hospitals59
- Banks43
- ATMs6
- Petrol pumps67
- Hotels331
- Shopping malls22
- Schools1,576
- Colleges and universities39
- Cinemas6
- Pharmacies38
- Restaurants591
- Police stations18
- Dental clinics45

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.

## Quick answers

- Where is San Martin Department?In Peru
- What is the population of San Martin Department?945,523 (2024 estimate)
- What is the median age in San Martin Department?About 28 years (2024 estimate)
- What is the population density of San Martin Department?About 19 people per km²
- What borders San Martin Department?Amazonas Department, Huanuco Department, La Libertad Department and Loreto Department
- What is there to see in San Martin Department?Achiras, Aguas Calientes, Ahuashiyacu Viewpoint, Alta Pirka
- What time zone is San Martin Department in?UTC−5
- What currency is used in San Martin Department?Sol (PEN)
- What language is spoken in San Martin Department?Spanish, Quechua, Aymara (main languages nationally)
- What is the largest town in San Martin Department?Moyobamba
- What is the highest point in San Martin Department?Cerro Alto Nariz (4,333 m, GeoNames elevation model)
- What is the best time to visit San Martin Department?January to December
- How many hospitals are in San Martin Department?59 mapped
- How many banks are in San Martin Department?43 mapped
- How many ATMs are in San Martin Department?6 mapped
- How many petrol pumps are in San Martin Department?67 mapped
- What is the P-code of San Martin Department?PE22 (OCHA common operational dataset)