US ZIP Code 91701 Nativity & Citizenship Status (2024)

Approximately 17.6% of residents in US ZIP Code 91701 were born outside the United States.

The vast majority of residents, roughly 94.6%, are U.S. citizens (including both native-born and naturalized citizens).

Place of birth and citizenship status analysis for US ZIP Code 91701

Demographics Overview

82.4%

17.6%

12.1%

94.6%

**Table 1:** Comparison of total population and nativity percentages over time.
Year	Total Pop	Foreign Born	Native Born
2024	39,287	17.6%	82.4%
2023	38,597	18.0%	82.0%
2022	39,323	17.1%	82.9%
2021	39,019	17.2%	82.8%

Approximately 17.6% of residents in US ZIP Code 91701 were born outside the United States.

The vast majority of residents, roughly 94.6%, are U.S. citizens (including both native-born and naturalized citizens).