# Nyandarua County, Kenya – Constituencies, Population & Map

> Source: https://wherepedia.org/kenya/nyandarua/

County · Kenya 

# Nyandarua County

Nyandarua County is a county of Kenya. It had an estimated **638,269 people** in 2019 on 3,267 km² (about 195 per km²). Its main town is Ol Kalou. It is divided into 5 constituencies. 128 named villages and localities are recorded here, and 203 mapped services such as hospitals, banks and schools.

- 638,269people (2019)
- 3,267km²
- 5constituencies
- 203mapped services

## How many people live in Nyandarua County?

Nyandarua County had an estimated **638,269 people** in 2019 — 1.3% of Kenya, 33rd of 47 counties. There are 1,026 women for every 1,000 men (close to the Kenya figure of 1,020). Spread over 3,267 km², that is about **195 people per km²**, 26th of 47 counties.

35.7% of people are children under 15 and 5.6% are 65 or older; the median age is about 22 years (it is 20 across Kenya). For every 100 people of working age (15–64) there are 70 children and older people.

0–4 ****69,988**

5–9 ****74,903**

10–14 ****82,873**

15–19 ****75,568**

20–24 ****48,463**

25–29 ****38,926**

30–34 ****42,031**

35–39 ****39,224**

40–44 ****35,094**

45–49 ****32,229**

50–54 ****26,734**

55–59 ****22,256**

60–64 ****14,052**

65–69 ****11,319**

70–74 ****9,678**

75–79 ****6,714**

80–84 ****4,020**

85–89 ****2,269**

90–94 ****1,091**

95+ ****565**

Source: [Kenya National Bureau of Statistics via OCHA HDX, population 2019 (COD-PS, CC BY-IGO)](https://data.humdata.org/dataset/cod-ps-ken).

## Where is Nyandarua County?

Nyandarua County lies in [Kenya](https://wherepedia.org/kenya/). It borders 5 other counties: [Kiambu County](https://wherepedia.org/kenya/kiambu/), [Laikipia County](https://wherepedia.org/kenya/laikipia/), [Murang'a County](https://wherepedia.org/kenya/murang-a/), [Nakuru County](https://wherepedia.org/kenya/nakuru/) and [Nyeri County](https://wherepedia.org/kenya/nyeri/). By area it is the 27th largest of 47 counties in Kenya. It covers 0.6% of [Kenya](https://wherepedia.org/kenya/). The centre of Nyandarua County is about 106 km in a straight line from Nairobi, the capital. The centre point is at 0.3891° S, 36.4974° E.

Source: [IEBC via OCHA HDX, administrative boundaries (COD-AB, CC BY-IGO)](https://data.humdata.org/dataset/cod-ab-ken).

## Things to see in and around Nyandarua County

OpenStreetMap lists 10 named sights in Nyandarua County: 5 attractions; 3 viewpoints; 1 volcano; 1 nature reserve.

- Aberdares Forest Reserve · nature reserve
- First picnic spot · viewpoint
- Ridge saddle · viewpoint
- Second picnic spot · viewpoint
- Bamboo Gate 2933M · attraction
- Equator Sign · attraction
- Njabini Forest Station Entrance Gate · attraction
- Shamata Gate · attraction
- Starting point elephant hill 2802m · attraction
- Mount Kipipiri · volcano

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: Nyandarua County

- Time zoneUTC+3, no daylight saving · Africa/Nairobi
- CurrencyShilling (KES)
- Country calling code+254
- LanguagesEnglish, Swahili
- Plug typesType G · 240 V
- Driving sideLeft
- Postcode format5 digits (#####)

### Nearest airports

- Nanyuki Civil Airport (NYK) · Gathiuru71 km
- Nairobi Wilson Airport (WIL) · Nairobi110 km

### Nearest railway station

Ol Kalou (Ol Kalou), about 19 km from the centre.

### Daylight

Days are longest in Dec (about 12.1 hours, sunrise around 06:24) and shortest in Jun (about 12.1 hours, sunrise around 06:31, sunset around 18:36).

Month Sunrise Sunset Daylight 

Jan 06:38 18:46 12.1 h 

Feb 06:44 18:52 12.1 h 

Mar 06:40 18:47 12.1 h 

Apr 06:31 18:37 12.1 h 

May 06:27 18:33 12.1 h 

Jun 06:31 18:36 12.1 h 

Jul 06:36 18:42 12.1 h 

Aug 06:35 18:41 12.1 h 

Sep 06:26 18:32 12.1 h 

Oct 06:16 18:23 12.1 h 

Nov 06:14 18:22 12.1 h 

Dec 06:24 18:33 12.1 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.

## Constituencies of Nyandarua County

Constituency Area km² Localities Services 

[Kinangop](https://wherepedia.org/kenya/nyandarua/kinangop/) 539 30 49 

[Kipipiri](https://wherepedia.org/kenya/nyandarua/kipipiri/) 941 36 41 

[Ndaragwa](https://wherepedia.org/kenya/nyandarua/ndaragwa/) 874 20 40 

[Ol Jorok](https://wherepedia.org/kenya/nyandarua/ol-jorok/) 625 36 38 

[Ol Kalou](https://wherepedia.org/kenya/nyandarua/ol-kalou/) 287 10 35 

Source: [IEBC via OCHA HDX, administrative boundaries (COD-AB, CC BY-IGO)](https://data.humdata.org/dataset/cod-ab-ken); [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/).

## Villages and localities in Nyandarua County

Open gazetteers list **128 villages, towns and localities** in Nyandarua County. The largest with a recorded population: Upper Gilgil (60,711), Ol Kalou (47,795), Mairo Inya (30,527), Ol Kalau South Settlement (13,234), Engineer (5,324) and Ndunyu Njeru (4,354). Settlements here lie between about 1,964 m and 2,856 m above sea level (median 2,493 m).

- Bongo
- Brynglas
- Captain
- Charagita
- Dondori
- Dundori
- Engineer
- Excelsior
- Gatarwa
- Gathundia
- Gatondo
- Geta
- Gichaka
- Githima
- Githioro
- Githioro Settlement
- Gwakungu
- Heni Village
- Hill Side
- Howbury Lower
- Ikamira
- Ildarakwa
- Juakali
- Kabati
- Kaburini A
- Kaburini B
- Kaheho
- Kahuru
- Kambaa
- Kangui
- Kanyagia Settlement
- Kanyanya
- Karagoini Settlement
- Karai Settlement
- Karati Settlement
- Karima
- Kasuku
- Kendurumu
- Kinga
- Kipata
- Kipipiri
- Kipipiri Settlement
- Kiriko
- Kitiri Settlement
- Kitogo
- Kona Mbaya
- Kwaharaka
- Leshau
- Lesirko Settlement
- Magomano
- Magumu
- Mahindu
- Mai Maharo
- Mai Mahoro
- Mairo Inya
- Malewa
- Malewa Settlement
- Matindiri Settlement
- Mawingo
- Mawingo Settlement
- Melangini Settlement
- Miharati
- Mirangine
- Mkungi Settlement
- Mugumo
- Mukeo
- Mukuru
- Munyeki
- Muruaki Settlement
- Mutamaiyu
- Mutarakwa
- Nandarasi
- Nandarasi Settlement
- Ndaragwa
- Ndaragwa Settlement
- Ndiara
- Ndunyu Njeru
- Ndururi
- Nenepa
- Ngano
- Ngorika Settlement
- Njabini
- Njoya
- North Kinangop
- Nyairoko Settlement
- Nyaituga
- Nyamdundo
- Nyandarua
- Ol Aragwai
- Ol Aragwai Settlement
- Ol Joro Orok
- Ol Joro Orok West Settlement
- Ol Kalau South Settlement
- Ol Kalou
- Ol Kalou Settlement
- Ol Mogogo
- Ol Morogi
- Ol Orongoti Settlement
- Oleolondo
- Oraimutia Settlement
- Orper
- Passenga Settlement
- Pesi Settlement
- Police Line
- Rudisha
- Rurie
- Rutara
- Rwanyambo
- Sabugo
- Sabugo Settlement
- Sasumua
- Shamata Settlement
- Silanga Settlement
- Silibwet Settlement
- Simbara Settlement
- South Kinangop
- South Kinangop Settlement
- Tulaga
- Tumaini
- Turasha
- Turasha Ridge Settlement
- Upper Gilgil
- Upper Gilgil Settlement
- Wanjohi
- Wanjohi Settlement
- Weru Settlement
- Windmill
- Wishipon

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).

## Landscape and landmarks of Nyandarua County

Named natural and historic features inside Nyandarua County, from the GeoNames gazetteer.

### Water

82 rivers and streams; 1 reservoir or tank; 1 lake.

- Chitehi
- Chitohi
- Dundori
- Engare Kenja
- Engare Mugutyu
- Engare Syana
- Equator
- Gathanji
- Gathathi
- Gathiriga
- Gatoroini
- Gilgil
- Githai
- Githima
- Kachoria
- Kachororia
- Kachuruga
- Kaheho
- Kahuru
- Kaimbaga
- Kalini
- Kandara
- Kangoyo
- Kanyagia

…and 60 more.

### Hills and mountains

13 hills; 9 mountains; 1 peak.

- Oldoinyo Lesatima · 3,891 m
- Table Mountain · 3,825 m
- Rurimueria Hill · 3,581 m
- Muir’s Massif · 3,529 m
- The Twins · 3,393 m
- Kipipiri · 3,339 m
- The Knoll · 3,308 m
- Feys Peak · 3,290 m
- Chebuswa · 3,118 m
- Bamboo Hill · 3,109 m
- Beacon Hill · 2,980 m
- Kanjwiri Hill · 2,948 m
- Sentry Hill · 2,936 m
- Simbara · 2,818 m
- Sisiun Hill · 2,741 m
- Sebugo · 2,662 m
- Kijabe · 2,634 m
- Simbara Hill · 2,569 m
- Shamata · 2,512 m
- Manyata · 2,465 m
- Tandamara · 2,461 m
- Oloronyo · 2,412 m
- Ndaragwa Hill · 2,251 m

### Forests and nature

3 forests.

- Kipipiri Forest
- Leshau Forest
- Ol Bolossat Forest

### History

1 fort.

- Fort Jericho

### Estates

9 estates.

- Aberdare Estates
- Majichemka
- Oleoponda Estate
- Plains Estate
- Sabugo Estate
- Simbara Estates
- Subego Estate
- Tevrede Estate
- Tumaini Estate

### Getting around

3 bridges; 2 railway stations; 1 airfield.

- Deighton Downs Airstrip
- Jaffa Bridge
- Ol Kalau Station
- Oleolondo
- Portmans Bridge
- Simba Bridge

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 Nyandarua County and the best time to visit

In Nyandarua County, the warmest month is Mar (average 17 °C) and the coolest is Jul (14 °C). About 1,233 mm of rain falls in a year; the wettest month is Apr (206 mm) and the driest Feb (39 mm). The most comfortable months for a visit are **December to March and June to October**.

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

Month Average °C Rain mm 

Jan 16 54 

Feb 17 39 

Mar 17 105 

Apr 16 206 

May 15 149 

Jun 15 82 

Jul 14 68 

Aug 14 89 

Sep 15 85 

Oct 16 115 

Nov 16 146 

Dec 16 95 

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

## Hospitals, banks and other services in Nyandarua County

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

- Hospitals9
- Banks6
- Petrol pumps19
- Hotels19
- Shopping malls3
- Schools131
- Colleges and universities3
- Restaurants8
- Police stations5

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 Nyandarua County?In Kenya
- What is the population of Nyandarua County?638,269 (2019 estimate)
- What is the median age in Nyandarua County?About 22 years (2019 estimate)
- What is the population density of Nyandarua County?About 195 people per km²
- What borders Nyandarua County?Kiambu County, Laikipia County, Murang'a County, Nakuru County and Nyeri County
- What is there to see in Nyandarua County?Aberdares Forest Reserve, Bamboo Gate 2933M, Equator Sign, First picnic spot
- What time zone is Nyandarua County in?UTC+3
- What currency is used in Nyandarua County?Shilling (KES)
- What language is spoken in Nyandarua County?English, Swahili (main languages nationally)
- How many villages are in Nyandarua County?128 named settlements (GeoNames, OpenStreetMap)
- What is the elevation of Nyandarua County?Settlements lie between 1,964 m and 2,856 m
- How many reservoirs and tanks are in Nyandarua County?1 named in GeoNames
- What is the highest point in Nyandarua County?Oldoinyo Lesatima (3,891 m, GeoNames elevation model)
- What is the best time to visit Nyandarua County?December to March and June to October
- How many hospitals are in Nyandarua County?9 mapped
- How many banks are in Nyandarua County?6 mapped
- How many petrol pumps are in Nyandarua County?19 mapped
- What is the P-code of Nyandarua County?KE018 (OCHA common operational dataset)