Does Population estimates in American Community Survey 5-Year Data (2009-2017) includes international migration as well? or is it based on residence status.
The American Community Survey data are based on residents. So yes, if persons migrated to the U.S. and now live here, then they are part of the estimated population.
Also, not sure if you meant "citizen" rather than "resident" in your question. But the Census Bureau counts all people who reside in the U.S. regardless of their citizenship status. Annual estimates, which use the Decennial Census counts as part of the process, are estimates of the resident population, regardless of citizenship status.
The methodology used for the estimates depends on the geography, but you can see the methodology here: https://www.census.gov/programs-surveys/popest/technical-documentation/methodology.html