| Introduction | Historical Background | Chronology | Geography | Biography | Technology | Ownership and Financing | General Bibliography |
| Southwestern States |
The following table showing the number of communities with operating systems. Numbers in parentheses indicates the number of systems that were proposed but not constructed.
| Southwestern
States |
1795 |
1800 | 1805 |
1810 | 1815 |
1820 | 1825 |
1830 | 1835 |
1840 | 1845 |
1850 | 1855 |
1860 | 1865 |
1870 |
1875 |
1880 |
| Missouri |
0 | 0 |
0 | 0 |
0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 5 |
| Arkansas |
0 | 0 |
0 | 0 |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Texas |
1 | 1 | 1 | 1 |
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 5 |
| Oklahoma |
0 | 0 |
0 | 0 |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Colorado |
0 | 0 |
0 | 0 |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 (1) | 0 | 0 | 5 | 11 |
| New Mexico |
0 | 0 |
0 | 0 |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total |
1 |
1 |
1 |
1 |
1 |
1 | 1 |
1 | 2 |
2 | 2 |
2 |
2 |
2 (1) | 2 |
2 |
9 |
22 |
© 2015-2021 Morris A. Pierce