Distrito Escolar	Population: 1991	Square Miles	Population per Square Mile	Square Kilometers	Population per Square Kilometer
1	280,155	5.6	50,080	14.5	19,321
2	262,701	2.9	89,595	7.6	34,566
3	141,301	2.3	61,042	6.0	23,550
4	92,749	4.1	22,896	10.5	8,833
5	99,358	4.5	22,201	11.6	8,565
6	160,076	1.9	84,677	4.9	32,669
7	170,302	2.8	61,309	7.2	23,653
8	147,786	2.4	61,784	6.2	23,837
9	263,410	6.6	40,162	17.0	15,495
10	232,732	5.7	40,486	14.9	15,620
11	109,189	2.7	39,862	7.1	15,379
12	115,954	2.4	48,476	6.2	18,702
13	115,348	4.1	27,942	10.7	10,780
14	101,542	3.5	28,923	9.1	11,159
15	107,857	3.2	34,093	8.2	13,153
16	88,061	3.0	29,643	7.7	11,437
17	131,191	3.6	36,564	9.3	14,107
18	104,479	3.4	30,774	8.8	11,873
19	57,960	3.2	18,321	8.2	7,068
20	91,157	3.5	26,253	9.0	10,129
21	92,095	5.9	15,602	15.3	6,019
Total	2,965,403	77.2	38,432	200.0	335,913
Source: INDEC