| Place | State | Latitude | Longitude | Elevation (meters) | Elevation (feet) |
|---|
| Ichubo | Province of KwaZulu-Natal | -28.8333333 | 31.9333333 | 66 | 217 |
| Ida | Province of Eastern Cape | -31.4 | 26.55 | 1742 | 5715 |
| Idutywa | Province of Eastern Cape | -32.1 | 28.3 | 822 | 2697 |
| Idutywa River | Province of Eastern Cape | -32.05 | 28.4166667 | 722 | 2369 |
| Ifafa | Province of KwaZulu-Natal | -30.4166667 | 30.5833333 | 218 | 715 |
| Ifafa Beach | Province of KwaZulu-Natal | -30.45 | 30.65 | 34 | 112 |
| Ilinge | Province of Eastern Cape | -31.9666667 | 27.05 | 1083 | 3553 |
| Ilkley | Province of North-West | -26.0333333 | 23.1833333 | 1062 | 3484 |
| Illovo | Province of KwaZulu-Natal | -30.1166667 | 30.85 | 21 | 69 |
| Illovo Beach | Province of KwaZulu-Natal | -30.1166667 | 30.85 | 21 | 69 |
| Ilsley | Province of North-West | -26.6833333 | 23.1166667 | 1054 | 3458 |
| iMbali | Province of KwaZulu-Natal | -29.6666667 | 30.35 | 718 | 2356 |
| Imhoff's Gift | Province of the Western Cape | -34.15 | 18.35 | 34 | 112 |
| Impendle | Province of KwaZulu-Natal | -29.6 | 29.8666667 | 1544 | 5066 |
| Imvani | Province of Eastern Cape | -32.0333333 | 27.0833333 | 1020 | 3346 |
| Inadan | Gauteng | -26.0166667 | 27.95 | 1428 | 4685 |
| Inanda | Province of KwaZulu-Natal | -29.6833333 | 30.9333333 | 260 | 853 |
| Inanda | Province of KwaZulu-Natal | -29.6 | 30.9166667 | 319 | 1047 |
| Inchanga | Province of KwaZulu-Natal | -29.75 | 30.6666667 | 649 | 2129 |
| Inchanga Park | Province of KwaZulu-Natal | -29.7333333 | 30.6666667 | 652 | 2139 |
