Table 2.
County‐wise epidemic typology based on HIV prevalence in general and key populations (KPs), and density of key populations, Kenya, 2021
| HIV prevalence in KPs | KP size estimation | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| County | HIV prevalence in the general population | FSW % | MSM % | PWID % | FSW n | MSM n | PWID n | n of KP per 1000 adult men | Epidemic typology |
| Baringo | 1.65 | 20.6 | 9.5 | 18.8 | 1970 | 568 | 339 | 9 | Concentrated |
| Bomet | 2.40 | 22.0 | 8.7 | 19.1 | 2603 | 409 | 582 | 9 | Concentrated |
| Bungoma | 2.45 | 21.6 | 11.5 | 19.0 | 3716 | 1353 | 413 | 8 | Concentrated |
| Elgeyo‐Marakwet | 2.02 | 23.0 | 8.7 | 19.3 | 1268 | 186 | 291 | 5 | Concentrated |
| Embu | 2.17 | 21.8 | 8.8 | 19.1 | 1851 | 427 | 0 | 12 | Concentrated |
| Garissa | 0.17 | 18.0 | 10.6 | 18.3 | 2149 | 1285 | 299 | 15 | Concentrated |
| Isiolo | 1.85 | 21.1 | 9.0 | 18.9 | 688 | 346 | 817 | 5 | Concentrated |
| Kiambu | 2.27 | 19.5 | 21.7 | 18.6 | 5809 | 2580 | 1045 | 20 | Concentrated |
| Laikipia | 2.23 | 20.8 | 9.2 | 18.9 | 1182 | 231 | 375 | 4 | Concentrated |
| Lamu | 2.26 | 21.7 | 8.9 | 19.0 | 749 | 211 | 450 | 4 | Concentrated |
| Machakos | 3.02 | 23.0 | 13.4 | 19.3 | 4932 | 2811 | 40 | 11 | Concentrated |
| Makueni | 2.80 | 24.0 | 9.2 | 19.4 | 2743 | 893 | 399 | 10 | Concentrated |
| Mandera | 0.41 | 18.3 | 10.2 | 18.4 | 3952 | 1052 | 519 | 6 | Concentrated |
| Marsabit | 0.86 | 19.7 | 9.2 | 18.6 | 1530 | 476 | 392 | 4 | Concentrated |
| Meru | 2.54 | 23.0 | 8.6 | 19.3 | 2743 | 1026 | 60 | 14 | Concentrated |
| Murang'a | 2.41 | 22.3 | 10.0 | 19.1 | 2532 | 904 | 412 | 7 | Concentrated |
| Nandi | 2.79 | 21.7 | 9.4 | 19.0 | 2957 | 514 | 661 | 9 | Concentrated |
| Narok | 2.88 | 25.0 | 8.6 | 19.7 | 3107 | 704 | 403 | 9 | Concentrated |
| Nyandarua | 2.00 | 21.1 | 9.1 | 18.9 | 1785 | 403 | 257 | 7 | Concentrated |
| Nyeri | 2.97 | 25.0 | 9.3 | 19.7 | 1317 | 406 | 0 | 8 | Concentrated |
| Tana River | 1.05 | 19.5 | 8.7 | 18.6 | 1798 | 212 | 524 | 43 | Concentrated |
| Tharaka‐Nithi | 2.52 | 21.4 | 8.8 | 19.0 | 2594 | 219 | 568 | 9 | Concentrated |
| Wajir | 0.16 | 18.3 | 9.9 | 18.4 | 3139 | 860 | 0 | 7 | Concentrated |
| West Pokot | 0.83 | 19.8 | 8.9 | 18.7 | 2304 | 281 | 617 | 8 | Concentrated |
| Trans‐Nzoia | 3.39 | 24.0 | 10.3 | 19.4 | 3147 | 1114 | 180 | 8 | Mixed |
| Turkana | 3.10 | 28.0 | 9.4 | 20.2 | 3722 | 515 | 609 | 20 | Mixed |
| Uasin Gishu | 3.95 | 26.0 | 11.2 | 19.8 | 2886 | 1693 | 676 | 18 | Mixed |
| Vihiga | 4.58 | 25.6 | 9.5 | 19.8 | 1940 | 203 | 407 | 10 | Mixed |
| Busia | 5.44 | 32.0 | 9.6 | 21.1 | 2421 | 550 | 281 | 6 | Mixed |
| Kajiado | 3.53 | 25.0 | 11.3 | 19.6 | 7645 | 1759 | 436 | 20 | Mixed |
| Kakamega | 3.58 | 24.0 | 10.6 | 19.4 | 3525 | 1378 | 329 | 3 | Mixed |
| Kericho | 3.24 | 23.0 | 9.5 | 19.3 | 2333 | 605 | 180 | 3 | Mixed |
| Kilifi | 2.78 | 21.3 | 14.0 | 19.0 | 6696 | 4589 | 3168 | 35 | Mixed |
| Kirinyaga | 2.51 | 23.0 | 8.5 | 19.2 | 2497 | 437 | 381 | 31 | Mixed |
| Kisii | 4.66 | 27.0 | 9.4 | 20.0 | 6538 | 885 | 29 | 15 | Mixed |
| Kitui | 3.29 | 26.0 | 9.5 | 19.9 | 2972 | 500 | 387 | 15 | Mixed |
| Kwale | 3.11 | 24.0 | 9.8 | 19.5 | 2833 | 1026 | 1127 | 19 | Mixed |
| Mombasa | 5.37 | 26.0 | 14.0 | 19.9 | 8187 | 3117 | 1992 | 104 | Mixed |
| Nairobi | 4.32 | 23.0 | 28.2 | 19.4 | 39,227 | 15,271 | 4198 | 148 | Mixed |
| Nakuru | 3.46 | 22.3 | 12.5 | 19.1 | 17,708 | 2706 | 9 | 126 | Mixed |
| Nyamira | 3.75 | 24.0 | 8.7 | 19.4 | 1999 | 193 | 654 | 21 | Mixed |
| Samburu | 4.59 | 20.7 | 8.6 | 18.8 | 1500 | 150 | 488 | 12 | Mixed |
| Taita‐Taveta | 3.46 | 25.0 | 8.7 | 19.8 | 1843 | 219 | 514 | 7 | Mixed |
| Homa Bay | 16.18 | 46.1 | 9.0 | 23.8 | 3823 | 983 | 55 | 15 | Generalized |
| Kisumu | 15.47 | 43.1 | 13.3 | 23.2 | 5277 | 4025 | 390 | 59 | Generalized |
| Migori | 10.38 | 36.6 | 9.6 | 21.9 | 5238 | 782 | 153 | 9 | Generalized |
| Siaya | 14.06 | 39.9 | 9.8 | 22.6 | 3724 | 593 | 567 | 11 | Generalized |
Abbreviations: FSW, female sex workers; MSM, men who have sex with men; PWID, people who inject drugs.