Alton city, IL Foreign-Born Population By Country of Birth in 2021 (ACS-5Yrs)
Updated on November 5, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the Foreign-Born population of Alton city, IL was 471, which was 1.82% of the population of Alton city, IL.
The highest percentage of the Alton city foreign-born population were born in Mexico (15.92%), followed by Nigeria (12.95%), and India (10.62%).
The chart below shows the top 10 place of birth countries for the Alton city Foreign-born population as a percentage of the total Alton city foreign-born population. The table below shows the population and percentage of the Alton city foreign-born population for many different place of birth countries.
You can see similar information for other Illinois cities and places and for Illinois.
Data Source: US Census Bureau.
Alton city, IL Foreign-Born Population By Country of Birth in 2021 (ACS-5Yrs)
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| Country of Birth | Number of People | Percentage of Foreign-Born (%) |
|---|---|---|
| Mexico | 75 | 15.92 |
| Nigeria | 61 | 12.95 |
| India | 50 | 10.62 |
| Philippines | 49 | 10.40 |
| Vietnam | 39 | 8.28 |
| Germany | 37 | 7.86 |
| Canada | 37 | 7.86 |
| Ethiopia | 31 | 6.58 |
| North Macedonia | 25 | 5.31 |
| Peru | 20 | 4.25 |
| Bahamas | 13 | 2.76 |
| Japan | 11 | 2.34 |
| Argentina | 9 | 1.91 |
| Kenya | 6 | 1.27 |
| Ecuador | 3 | 0.64 |