| Guadalix de la Sierra | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain |
| Pushpin Map Caption: | Location in Spain |
| Coordinates: | 40.7833°N -44°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Name1: | Community of Madrid |
| Subdivision Type2: | Comarca |
| Subdivision Name2: | Cuenca Alta del Manzanares |
| Unit Pref: | Imperial |
| Area Total Km2: | 61 |
| Population Density Blank1 Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Elevation M: | 832 |
| Postal Code Type: | Postal code |
| Postal Code: | 28794 |
Guadalix de la Sierra is a municipality of the Community of Madrid, Spain.
According to the 2014 census,[1] the municipality has a population of 6,057 inhabitants.
auto