Nairobi City County's 17 constituencies, the neighbourhoods inside them and 45 landmarks. Tap a constituency or a pin, search for a place, or switch layers to see population, age, gender and wealth across the city, and what rent looks like neighbourhood by neighbourhood.
Nairobi had 4,396,828 people at the 2019 census, on 705 km². The constituency figures are estimates, rounded hard on purpose — here is why.
| Constituency | People (est.) | Area | People per km² (est.) | Relative wealth |
|---|---|---|---|---|
| Mathare | 220,000 | 2.9 km² | 70,000 | 16 of 17 |
| Embakasi North | 240,000 | 5.4 km² | 40,000 | 17 of 17 |
| Kamukunji | 310,000 | 8.8 km² | 40,000 | 15 of 17 |
| Embakasi Central | 240,000 | 8.2 km² | 30,000 | 5 of 17 |
| Embakasi West | 260,000 | 9.8 km² | 30,000 | 13 of 17 |
| Ruaraka | 230,000 | 7.2 km² | 30,000 | 3 of 17 |
| Kibra | 230,000 | 12.3 km² | 20,000 | 7 of 17 |
| Makadara | 240,000 | 12.0 km² | 20,000 | 11 of 17 |
| Dagoretti North | 290,000 | 29.4 km² | 10,000 | 1 of 17 |
| Embakasi South | 230,000 | 17.5 km² | 10,000 | 14 of 17 |
| Starehe | 210,000 | 16.8 km² | 10,000 | 4 of 17 |
| Dagoretti South | 210,000 | 24.4 km² | 9,000 | 2 of 17 |
| Roysambu | 240,000 | 48.1 km² | 5,000 | 12 of 17 |
| Embakasi East | 370,000 | 85.8 km² | 4,000 | 9 of 17 |
| Westlands | 260,000 | 72.7 km² | 4,000 | 8 of 17 |
| Kasarani | 300,000 | 136.3 km² | 2,000 | 6 of 17 |
| Lang'ata | 330,000 | 209.8 km² | 2,000 | 10 of 17 |
The 2019 Kenya Population and Housing Census reports Nairobi by its 11 administrative sub-counties. These are the real counts. Sub-counties are drawn on different lines from constituencies, so the two tables do not line up, even where the names match.
| Sub-county | People | Per km² | Women | Under 15 | 20 to 34 | 65 and over |
|---|---|---|---|---|---|---|
| Embakasi | 988,746 | 13,360 | 50.2% | 30.8% | 40.6% | 0.6% |
| Kasarani | 780,619 | 9,110 | 51.2% | 31.0% | 38.9% | 0.9% |
| Njiru | 626,451 | 4,790 | 50.9% | 33.4% | 34.4% | 1.0% |
| Dagoretti | 434,177 | 14,910 | 49.9% | 31.3% | 37.1% | 1.2% |
| Westlands | 308,839 | 3,170 | 50.2% | 25.3% | 32.8% | 4.0% |
| Kamukunji | 268,269 | 26,460 | 49.1% | 32.0% | 36.8% | 1.4% |
| Starehe | 210,411 | 10,540 | 48.1% | 25.5% | 40.0% | 1.7% |
| Mathare | 206,550 | 70,020 | 48.4% | 31.3% | 37.5% | 1.0% |
| Lang'ata | 197,472 | 900 | 51.0% | 25.9% | 33.8% | 2.9% |
| Makadara | 189,526 | 14,800 | 49.2% | 27.7% | 37.2% | 1.7% |
| Kibra | 185,768 | 14,650 | 49.3% | 31.0% | 33.1% | 1.4% |
Totals exclude the small number of people recorded as intersex, which is why they sum to 4,396,828 rather than the headline 4,397,073.
An indicative band for each neighbourhood, from our reading of 2026 rental listings. It is a judgement, not a measured index, and rents vary a great deal within any one area. Neighbourhoods we cannot place with confidence are left out rather than guessed.
| Band | What it means | Neighbourhoods |
|---|---|---|
| Top end | Mostly houses and large apartments, KES 150,000 a month and up | Karen, Gigiri, Runda, Muthaiga |
| Upper | One-bedrooms roughly KES 40,000 to 90,000; two-bedrooms KES 60,000 and up | Westlands, Kilimani, Kileleshwa, Lavington, Parklands, Upper Hill, Hurlingham |
| Mid-range | One-bedrooms roughly KES 20,000 to 40,000 | Lang'ata, South B, South C, Ngara, Nairobi West, Madaraka |
| Budget | Bedsitters around KES 8,000 to 15,000; one-bedrooms from about KES 15,000 | Eastleigh, Kasarani, Embakasi, Roysambu, Utawala, Donholm, Buruburu, Umoja, Kayole |
| Rooms | Single rooms in informal settlements, mostly under KES 10,000 a month | Kibera, Mathare, Kawangware |
Boundaries are the IEBC's 17 constituencies. They are the units people vote in and the ones most people know. Wards are too small to be useful at this scale.
The population estimates start from the census total for the whole county. That total is then shared out between constituencies in proportion to WorldPop's modelled population inside each one. WorldPop works on a one-kilometre grid, and Mathare is under three square kilometres, so the estimates are rounded to the nearest ten thousand. Use them to compare constituencies, not to quote.
The census layers use the census's own areas. The census counts Nairobi by 11 administrative sub-counties, which follow different lines from the constituencies. Rather than force its figures onto the wrong shapes, the census layers switch the map to sub-county boundaries, so every number on them is a real 2019 count.
Relative wealth is a model, not income. Kenya publishes no income figures below county level. The wealth layer uses Meta's Relative Wealth Index, which estimates living standards from satellite imagery and other data on tiles about 2.4 km across, validated against household surveys. Each constituency's value is the average of its tiles, weighted by where people live. It ranks places against each other; it cannot tell you what anyone earns, and in the smallest constituencies it rests on one or two tiles.
Rent is our judgement. There is no public rent index for Nairobi, so the rent layer shows indicative bands for the neighbourhoods we can place with confidence, matching the figures in the housing guide.
The map is drawn here, not fetched. There is no tile server and no third party involved. It is one SVG built from one file on this site, so it works on a slow connection and does not tell anyone else where you are looking. "Show where I am" asks your browser for your location, uses it on your device, and sends it nowhere.
| What | Source | Licence |
|---|---|---|
| Constituency boundaries | IEBC, via OCHA and geoBoundaries | CC BY 3.0 IGO |
| County boundary | RCMRD, via geoBoundaries | Public domain |
| Population by sub-county, age and sex | KNBS, 2019 Kenya Population and Housing Census, Volume III, via OCHA | CC BY-IGO |
| How the population is spread within the county | WorldPop, 2020, 1 km, UN-adjusted | CC BY 4.0 |
| Census sub-county boundaries | OpenStreetMap contributors | ODbL |
| Relative wealth | Meta Data for Good, Relative Wealth Index (Chi et al. 2022), via HDX | CC BY-NC 4.0 |
| Rent bands | All About Nairobi, from 2026 rental listings - a judgement, not a measurement | |
| Landmark and neighbourhood positions | Wikidata and OpenStreetMap contributors | CC0 and ODbL |
Map data built 2026-09-23.
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