Datos de población anuales de San Martín del Río.
| Fecha | Todos | Hombres | Mujeres | |
|---|---|---|---|---|
| 01-01-2020 |
132 | 68 | 64 | |
| 01-01-2019 |
137 | 72 | 65 | |
| 01-01-2018 |
148 | 78 | 70 | |
| 01-01-2017 |
155 | 82 | 73 | |
| 01-01-2016 |
163 | 84 | 79 | |
| 01-01-2015 |
174 | 89 | 85 | |
| 01-01-2014 |
179 | 90 | 89 | |
| 01-01-2013 |
182 | 89 | 93 | |
| 01-01-2012 |
191 | 98 | 93 | |
| 01-01-2011 |
193 | 100 | 93 | |
| 01-01-2010 |
199 | 102 | 97 | |
| 01-01-2009 |
204 | 104 | 100 | |
| 01-01-2008 |
210 | 105 | 105 | |
| 01-01-2007 |
229 | 113 | 116 | |
| 01-01-2006 |
234 | 115 | 119 | |
| 01-01-2005 |
243 | 119 | 124 | |
| 01-01-2004 |
255 | 124 | 131 | |
| 01-01-2003 |
264 | 131 | 133 | |
| 01-01-2002 |
275 | 133 | 142 | |
| 01-01-2001 |
283 | 135 | 148 | |
| 01-01-2000 |
288 | 138 | 150 | |
| 01-01-1999 |
294 | 140 | 154 | |
| 01-01-1998 |
307 | 147 | 160 |