US ZIP Code 18431 Nativity & Citizenship Status (2024)

Approximately 3.4% of residents in US ZIP Code 18431 were born outside the United States.

The vast majority of residents, roughly 99.6%, are U.S. citizens (including both native-born and naturalized citizens).

Place of birth and citizenship status analysis for US ZIP Code 18431

Demographics Overview

96.6%

3.4%

3.1%

99.6%

**Table 1:** Comparison of total population and nativity percentages over time.
Year	Total Pop	Foreign Born	Native Born
2024	12,775	3.4%	96.6%
2023	12,576	3.0%	97.0%
2022	12,807	3.0%	97.0%
2021	12,518	3.2%	96.8%

Approximately 3.4% of residents in US ZIP Code 18431 were born outside the United States.

The vast majority of residents, roughly 99.6%, are U.S. citizens (including both native-born and naturalized citizens).