Categories County Yearly Population
| County |
pop2010 |
pop2011 |
pop2012 |
pop2013 |
pop2014 |
pop2015 |
pop2016 |
pop2017 |
pop2018 |
pop2019 |
pop2020 |
pop2021 |
pop2022 |
pop2023 |
pop2024 |
pop2025 |
| Baringo |
567516 |
588478 |
610182 |
632588 |
655641 |
679256 |
624675 |
638401 |
652428 |
666763 |
687000 |
702000 |
718000 |
733000 |
749000 |
764000 |
| Bomet |
745617 |
773157 |
801671 |
831115 |
861397 |
892429 |
840445 |
852033 |
863780 |
875689 |
902000 |
914000 |
927000 |
940000 |
953000 |
965000 |
| Bungoma |
1406776 |
1428835 |
1451892 |
1475995 |
1500990 |
1526655 |
1589234 |
1615896 |
1643006 |
1670570 |
1700000 |
1729000 |
1758000 |
1787000 |
1816000 |
1845000 |
| Busia |
761065 |
772999 |
785473 |
798514 |
812036 |
825921 |
842672 |
859343 |
876344 |
893681 |
914000 |
932000 |
950000 |
969000 |
987000 |
1006000 |
| Elgeyo Marakwet |
377942 |
391900 |
406355 |
421282 |
436631 |
452360 |
435128 |
441485 |
447935 |
454480 |
474000 |
481000 |
488000 |
495000 |
502000 |
509000 |
| Embu |
528000 |
532852 |
537906 |
543158 |
548569 |
554079 |
589986 |
596126 |
602330 |
608599 |
629000 |
635000 |
642000 |
648000 |
655000 |
662000 |
| Garissa |
387995 |
394804 |
401806 |
409007 |
416389 |
423931 |
781497 |
800960 |
820908 |
841353 |
861000 |
883000 |
905000 |
927000 |
949000 |
971000 |
| Homa Bay |
984293 |
1006756 |
1029823 |
1053465 |
1077554 |
1101901 |
1067994 |
1088901 |
1110217 |
1131950 |
1162000 |
1185000 |
1208000 |
1232000 |
1255000 |
1278000 |
| Isiolo |
146567 |
147928 |
149345 |
150817 |
152332 |
153875 |
249625 |
255606 |
261731 |
268002 |
294000 |
301000 |
309000 |
316000 |
323000 |
330000 |
| Kajiado |
701919 |
727849 |
754693 |
782409 |
810918 |
840127 |
1038952 |
1064609 |
1090900 |
1117840 |
1179000 |
1209000 |
1238000 |
1268000 |
1298000 |
1328000 |
| Kakamega |
1698576 |
1725211 |
1753050 |
1782152 |
1812330 |
1843320 |
1769074 |
1801318 |
1834149 |
1867579 |
1897000 |
1932000 |
1967000 |
2002000 |
2038000 |
2073000 |
| Kericho |
768350 |
796729 |
826112 |
856454 |
887659 |
919637 |
866009 |
877771 |
889693 |
901777 |
917000 |
930000 |
942000 |
955000 |
967000 |
980000 |
| Kiambu |
1660366 |
1692651 |
1726128 |
1760692 |
1795999 |
1831800 |
2279038 |
2324363 |
2370589 |
2417735 |
2501000 |
2552000 |
2602000 |
2653000 |
2704000 |
2754000 |
| Kilifi |
1133208 |
1175021 |
1218024 |
1262127 |
1307185 |
1353042 |
1372066 |
1398783 |
1426020 |
1453787 |
1489000 |
1518000 |
1548000 |
1577000 |
1607000 |
1637000 |
| Kirinyaga |
540247 |
550745 |
561642 |
572889 |
584377 |
596030 |
595338 |
600321 |
605345 |
610411 |
637000 |
642000 |
648000 |
653000 |
658000 |
664000 |
| Kisii |
1176791 |
1203648 |
1231223 |
1259489 |
1288290 |
1317407 |
1231096 |
1242904 |
1254825 |
1266860 |
1307000 |
1319000 |
1332000 |
1345000 |
1358000 |
1370000 |
| Kisumu |
989514 |
1012102 |
1035287 |
1059053 |
1083268 |
1107755 |
1097635 |
1116618 |
1135929 |
1155574 |
1186000 |
1207000 |
1228000 |
1248000 |
1269000 |
1290000 |
| Kitui |
1035831 |
1045268 |
1055104 |
1065329 |
1075866 |
1086599 |
1095773 |
1109082 |
1122553 |
1136187 |
1186000 |
1201000 |
1215000 |
1230000 |
1244000 |
1259000 |
| Kwale |
663906 |
688398 |
713591 |
739435 |
765831 |
792698 |
806638 |
826219 |
846276 |
866820 |
879000 |
901000 |
923000 |
944000 |
966000 |
988000 |
| Laikipia |
407658 |
422718 |
438309 |
454412 |
470965 |
487934 |
488662 |
498431 |
508396 |
518560 |
529000 |
539000 |
550000 |
561000 |
572000 |
583000 |
| Lamu |
103716 |
107546 |
111484 |
115520 |
119641 |
123842 |
133106 |
136617 |
140221 |
143920 |
155000 |
159000 |
163000 |
167000 |
172000 |
176000 |
| Machakos |
1123672 |
1134005 |
1144770 |
1155957 |
1167480 |
1179215 |
1378445 |
1392791 |
1407286 |
1421932 |
1442000 |
1457000 |
1472000 |
1488000 |
1503000 |
1518000 |
| Makueni |
904725 |
913015 |
921652 |
930630 |
939879 |
949298 |
955128 |
965849 |
976690 |
987653 |
1008000 |
1019000 |
1031000 |
1042000 |
1054000 |
1065000 |
| Mandera |
638766 |
649970 |
661504 |
673356 |
685510 |
697922 |
802280 |
823442 |
845163 |
867457 |
887000 |
911000 |
935000 |
959000 |
983000 |
1007000 |
| Marsabit |
297817 |
300589 |
303474 |
306471 |
309557 |
312698 |
428126 |
438429 |
448980 |
459785 |
480000 |
491000 |
503000 |
515000 |
527000 |
539000 |
| Meru |
1387275 |
1400032 |
1413323 |
1427135 |
1441361 |
1455849 |
1488019 |
1507007 |
1526238 |
1545714 |
1565000 |
1586000 |
1606000 |
1626000 |
1646000 |
1666000 |
| Migori |
936675 |
958055 |
980002 |
1002499 |
1025422 |
1048602 |
1037647 |
1063272 |
1089530 |
1116436 |
1147000 |
1176000 |
1205000 |
1234000 |
1263000 |
1292000 |
| Mombasa |
959187 |
994575 |
1030973 |
1068307 |
1106444 |
1145259 |
1131018 |
1156224 |
1181991 |
1208333 |
1228000 |
1256000 |
1284000 |
1312000 |
1340000 |
1368000 |
| Murang'a |
964170 |
982921 |
1002354 |
1022427 |
1042929 |
1063721 |
1023084 |
1034149 |
1045334 |
1056640 |
1077000 |
1088000 |
1100000 |
1112000 |
1124000 |
1136000 |
| Nairobi |
3144918 |
3351315 |
3563473 |
3781394 |
4004400 |
4232087 |
4180438 |
4251437 |
4323642 |
4397073 |
4516000 |
4594000 |
4672000 |
4750000 |
4828000 |
4906000 |
| Nakuru |
1637474 |
1697951 |
1760571 |
1825229 |
1891739 |
1959880 |
2027580 |
2071496 |
2116363 |
2162202 |
2202000 |
2251000 |
2299000 |
2348000 |
2397000 |
2445000 |
| Nandi |
769022 |
797427 |
826838 |
857207 |
888435 |
920445 |
843359 |
857246 |
871362 |
885711 |
906000 |
921000 |
936000 |
951000 |
967000 |
982000 |
| Narok |
868770 |
900860 |
934085 |
968390 |
1003672 |
1039837 |
1061997 |
1093039 |
1124989 |
1157873 |
1178000 |
1213000 |
1249000 |
1284000 |
1320000 |
1355000 |
| Nyamira |
610976 |
624921 |
639238 |
653914 |
668863 |
683979 |
595100 |
598572 |
602064 |
605576 |
646000 |
650000 |
654000 |
658000 |
661000 |
665000 |
| Nyandarua |
610017 |
621875 |
634172 |
646876 |
659848 |
673000 |
602962 |
614515 |
626289 |
638289 |
657000 |
670000 |
683000 |
696000 |
708000 |
721000 |
| Nyeri |
709595 |
723392 |
737704 |
752469 |
767560 |
782864 |
735724 |
743456 |
751269 |
759164 |
810000 |
818000 |
827000 |
835000 |
844000 |
853000 |
| Samburu |
228762 |
237212 |
245962 |
254997 |
264284 |
273804 |
285159 |
293313 |
301700 |
310327 |
320000 |
330000 |
339000 |
348000 |
358000 |
367000 |
| Siaya |
860216 |
879853 |
900009 |
920671 |
941724 |
963007 |
940223 |
957555 |
975206 |
993183 |
1003000 |
1022000 |
1041000 |
1059000 |
1078000 |
1097000 |
| Taita Taveta |
290789 |
301516 |
312550 |
323867 |
334042 |
347195 |
328355 |
332410 |
336515 |
340671 |
351000 |
355000 |
360000 |
364000 |
368000 |
373000 |
| Tana River |
245301 |
254348 |
263654 |
273205 |
282958 |
292885 |
292295 |
299974 |
307855 |
315943 |
326000 |
335000 |
344000 |
353000 |
361000 |
370000 |
| Tharaka Nithi |
373672 |
377099 |
380669 |
384379 |
388202 |
392094 |
380691 |
384808 |
388970 |
393177 |
403000 |
408000 |
412000 |
416000 |
421000 |
425000 |
| Trans Nzoia |
836332 |
867219 |
899200 |
932223 |
966197 |
1001005 |
935816 |
953649 |
971822 |
990341 |
1010000 |
1030000 |
1049000 |
1069000 |
1089000 |
1108000 |
| Turkana |
873575 |
905842 |
939247 |
973742 |
1009225 |
1045579 |
857327 |
879942 |
903153 |
926976 |
946000 |
972000 |
997000 |
1023000 |
1048000 |
1074000 |
| Uasin Gishu |
913027 |
946757 |
981669 |
1017723 |
1054805 |
1092803 |
1094446 |
1116896 |
1139806 |
1163186 |
1183000 |
1208000 |
1233000 |
1257000 |
1282000 |
1307000 |
| Vihiga |
567387 |
576283 |
585582 |
595301 |
605379 |
615734 |
575270 |
580143 |
585057 |
590013 |
610000 |
615000 |
620000 |
626000 |
631000 |
636000 |
| Wajir |
412210 |
419438 |
426883 |
434524 |
442371 |
450385 |
721450 |
740861 |
760794 |
781263 |
804000 |
826000 |
848000 |
871000 |
893000 |
915000 |
| West Pokot |
523709 |
543054 |
563087 |
583767 |
605033 |
626832 |
579888 |
593357 |
607139 |
621241 |
631000 |
646000 |
661000 |
676000 |
691000 |
706000 |
