Table:
text: Santiago Province, Chile
Communes
Communes
Commune Area_km_2_ _2002_population Pop_density_km_2_ Municipality_website
Santiago (Capital) 22.4 200792 8963.9 link
Vitacura 28.3 81499 2879.8 link
San Ramón 6.5 94906 14600.9 link
San Miguel 9.5 78872 8302.3 link
San Joaquín 9.7 97625 10064.4 link
Renca 24.2 133518 5517.3 link
Recoleta 16.2 148220 9149.4 link
Quinta Normal 12.4 104012 8388.1 link
Quilicura 57.5 126518 2200.3 link
Pudahuel 197.4 195653 991.1 link
Providencia 14.4 120874 8394.0 link
Peñalolén 54.2 216060 3986.3 link
Pedro Aguirre Cerda 9.7 114560 11810.3 link
Ñuñoa 16.9 163511 9675.2 link
Maipú 133.0 468390 3521.7 link
Macul 12.9 112535 8723.6 link
Lo Prado 6.7 104316 15569.6 link
Lo Espejo 7.2 112800 15666.7 link

Question: What is the population density of all communes with an area of 28.3 km² in the communes of the province of Santiago in Chile? ?

Question: Which municipality in the province of Santiago, Chile has an area of 12.4 km²? ?