US ZIP Code 01821 Nativity & Citizenship Status (2024)

Approximately 15.4% of residents in US ZIP Code 01821 were born outside the United States.

The vast majority of residents, roughly 93.5%, are U.S. citizens (including both native-born and naturalized citizens).

Place of birth and citizenship status analysis for US ZIP Code 01821

Demographics Overview

84.6%

15.4%

8.9%

93.5%

**Table 1:** Comparison of total population and nativity percentages over time.
Year	Total Pop	Foreign Born	Native Born
2024	30,143	15.4%	84.6%
2023	30,203	15.0%	85.0%
2022	30,854	15.0%	85.0%
2021	31,499	15.9%	84.1%

Approximately 15.4% of residents in US ZIP Code 01821 were born outside the United States.

The vast majority of residents, roughly 93.5%, are U.S. citizens (including both native-born and naturalized citizens).