San Sebastián Population 2026
San Sebastián has a population of 29,167, making it the #61 biggest city in 🇬🇹 Guatemala, located in Retalhuleu. Roughly 0.2% of Guatemala's population lives here. It is about 34× smaller than Guatemala City, the country's biggest city.
Population (city proper)
29,167
Rank in Guatemala
#61
Coordinates
14.56°N, 91.65°W
~313 m elevation · America/Guatemala
Distance to capital (Guatemala City)
122 km
76 miles, straight line
Other big cities in Retalhuleu
| City | Population | Rank in Guatemala |
|---|---|---|
| Retalhuleu | 90,505 | #21 |
| Nuevo San Carlos | 39,565 | #51 |
| San Felipe | 24,446 | #68 |
| El Asintal | 17,388 | #92 |
Cities near San Sebastián
- Retalhuleu90,505 people · ~4 km away
- Nuevo San Carlos39,565 people · ~6 km away
- San Felipe24,446 people · ~9 km away
- El Asintal17,388 people · ~9 km away
- El Palmar15,167 people · ~12 km away
- San Francisco Zapotitlán22,533 people · ~14 km away
FAQ
What is the population of San Sebastián?
San Sebastián has a population of 29,167 (city proper, latest official figure via GeoNames), making it the #61 biggest city in Guatemala.
What region is San Sebastián in?
San Sebastián is located in Retalhuleu, Guatemala.
Is San Sebastián the capital of Guatemala?
No, the capital of Guatemala is Guatemala City, about 122 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.
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