Surprise
- County:
- Maricopa County
- County Seat:
- No
- Area (mi²):
- 110.505
- State:
- Arizona
Surprise is a city located in Maricopa County, Arizona. Surprise has a 2026 population of 167,564. Surprise is currently growing at a rate of 5.3% annually and its population has increased by 16.05% since the most recent census, which recorded a population of 144,393 in 2020.