Columns: Code | County | Former Province | Area (km 2 ) | Population Census 2009 | Capital
10 | Marsabit | Eastern | 66,923.1 | 291166 | Marsabit | 11 | Isiolo | Eastern | 25,336.1 | 143294 | Isiolo | 12 | Meru | Eastern | 6,930 | 1356301 | Meru | 13 | Tharaka-Nithi | Eastern | 2,409.5 | 365330 | Chuka | 14 | Embu | Eastern | 2,555.9 | 516212 | Embu | 15 | Kitui | Eastern | 24,385.1 | 1012709 | Kitui | 16 | Machakos | Eastern | 5,952.9 | 1098584 | Machakos | 17 | Makueni | Eastern | 8,008.9 | 884527 | Wote