Zwelihle
Main Place 172018 from Census 2011
- Area
 - 2.11 km²
 - Population
 - 18,210 (8,614.53 per km²)
 - Households
 - 6,283 (2,972.27 per km²)
 
Gender
 | People | Percentage | 
|---|
| Male | 9,384 | 51.53% | 
| Female | 8,826 | 48.47% | 
Age
 | People | Percentage | 
|---|
| 0–4 | 2,336 | 12.83% | 
| 5–9 | 1,461 | 8.03% | 
| 10–14 | 1,225 | 6.73% | 
| 15–19 | 1,278 | 7.02% | 
| 20–24 | 2,200 | 12.09% | 
| 25–29 | 2,992 | 16.44% | 
| 30–34 | 2,500 | 13.73% | 
| 35–39 | 1,695 | 9.31% | 
| 40–44 | 990 | 5.44% | 
| 45–49 | 639 | 3.51% | 
| 50–54 | 327 | 1.80% | 
| 55–59 | 216 | 1.19% | 
| 60–64 | 130 | 0.71% | 
| 65–69 | 87 | 0.48% | 
| 70–74 | 67 | 0.37% | 
| 75–79 | 28 | 0.15% | 
| 80–84 | 14 | 0.08% | 
| 85+ | 19 | 0.10% | 
Population group
 | People | Percentage | 
|---|
| Black African | 17,252 | 94.74% | 
| Coloured | 413 | 2.27% | 
| Other | 383 | 2.10% | 
| White | 131 | 0.72% | 
| Indian or Asian | 31 | 0.17% | 
First language
 | People | Percentage | 
|---|
| isiXhosa | 14,495 | 79.60% | 
| Other | 978 | 5.37% | 
| English | 811 | 4.45% | 
| Afrikaans | 733 | 4.03% | 
| Sesotho | 515 | 2.83% | 
| isiZulu | 178 | 0.98% | 
| Xitsonga | 121 | 0.66% | 
| isiNdebele | 100 | 0.55% | 
| Sign language | 79 | 0.43% | 
| Sepedi | 77 | 0.42% | 
| Setswana | 63 | 0.35% | 
| Tshivenda | 42 | 0.23% | 
| SiSwati | 17 | 0.09% |