Counties in Maryland by net international migration rate, July to June
Montgomery County had the highest net international migration rate, July to June of 24 counties in 2021, at 2.75 per 1,000 inhabitants. Allegany County had the lowest, at 0 per 1,000 inhabitants. The median was 0.57 per 1,000 inhabitants and the figure for Maryland was 1.46 per 1,000 inhabitants. Source: the U.S. Census Bureau.
Map of counties, 2021
- Under 0.36
- 0.36 to 0.44
- 0.44 to 0.61
- 0.61 to 1.2
- 1.2 and over
All counties, 2021
Full ranking
| Rank | Counties | 2021 | Change on 2020 |
|---|---|---|---|
| 1 | Montgomery County Estimated | 2.75 | -1.7 pts |
| 2 | Prince George's County Estimated | 2.66 | -1.21 pts |
| 3 | Wicomico County Estimated | 1.48 | -0.35 pts |
| 4 | Baltimore County Estimated | 1.3 | -0.51 pts |
| 5 | Howard County Estimated | 1.22 | -0.88 pts |
| 6 | Frederick County Estimated | 1.14 | -0.33 pts |
| 7 | Baltimore city Estimated | 1.11 | -0.74 pts |
| 8 | Caroline County Estimated | 0.9 | -0.44 pts |
| 9 | Anne Arundel County Estimated | 0.68 | +0.13 pts |
| 10 | Talbot County Estimated | 0.61 | +0.26 pts |
| 11 | St. Mary's County Estimated | 0.6 | +0.05 pts |
| 12 | Charles County Estimated | 0.59 | -0.03 pts |
| 13 | Queen Anne's County Estimated | 0.55 | -0.13 pts |
| 14 | Washington County Estimated | 0.47 | -0.21 pts |
| 15 | Worcester County Estimated | 0.43 | -0.2 pts |
| 16 | Kent County Estimated | 0.42 | +0.11 pts |
| 17 | Dorchester County Estimated | 0.4 | -0.01 pts |
| 18 | Somerset County Estimated | 0.37 | -0.61 pts |
| 19 | Carroll County Estimated | 0.36 | +0.08 pts |
| 20 | Cecil County Estimated | 0.36 | +0.2 pts |
| 21 | Harford County Estimated | 0.18 | -0.43 pts |
| 22 | Calvert County Estimated | 0.11 | -0.07 pts |
| 23 | Garrett County Estimated | 0.1 | +0.1 pts |
| 24 | Allegany County Estimated | 0 | -0.47 pts |
Other periods
About this ranking
Net international migration from July 1 of the previous year through June 30 of the reported year per 1,000 residents, using the average of the population estimates at the two July 1 endpoints.
Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.
How to cite
U.S. Census Bureau. Population Estimates Program: net international migration rate per 1,000 residents, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.Citation styles
APA 7
U.S. Census Bureau. (2026). Population Estimates Program: net international migration rate per 1,000 residents, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021 (Counties in Maryland by net international migration rate, July to June, 2021) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html
MLA 9
Population Estimates Program: net international migration rate per 1,000 residents, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Counties in Maryland by net international migration rate, July to June, 2021. U.S. Census Bureau, 26 Mar. 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/net-international-migration-rate-july-june/maryland-counties?period=2021. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2026. Population Estimates Program: net international migration rate per 1,000 residents, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Counties in Maryland by net international migration rate, July to June, 2021. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/net-international-migration-rate-july-june/maryland-counties?period=2021.
Harvard
U.S. Census Bureau (2026) Population Estimates Program: net international migration rate per 1,000 residents, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Counties in Maryland by net international migration rate, July to June, 2021 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/net-international-migration-rate-july-june/maryland-counties?period=2021 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_maryland_by_2021,
author = {{U.S. Census Bureau}},
title = {{Population Estimates Program: net international migration rate per 1,000 residents, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Counties in Maryland by net international migration rate, July to June, 2021}},
year = {2026},
howpublished = {Data set},
url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
urldate = {2026-10-12},
note = {Accessed via Invokely, https://invokely.ai/rankings/net-international-migration-rate-july-june/maryland-counties?period=2021. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net international migration rate per 1,000 residents, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY - DATA
AU - U.S. Census Bureau
TI - Population Estimates Program: net international migration rate per 1,000 residents, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Counties in Maryland by net international migration rate, July to June, 2021
PY - 2026
DA - 2026/03/26
PB - U.S. Census Bureau
DB - Invokely
UR - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2 - https://invokely.ai/rankings/net-international-migration-rate-july-june/maryland-counties?period=2021
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/net-international-migration-rate-july-june/maryland-counties?period=2021.
N1 - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net international migration rate per 1,000 residents, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER -
Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank Counties in Maryland by net international migration rate, July to June using official data, and cite the source.
rank_places {"indicator":"net_international_migration_rate_july_june","level":"province","within":"Maryland","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=net_international_migration_rate_july_june&level=province&within=Maryland&limit=10Questions
Which county has the highest net international migration rate, July to June?
Montgomery County, with 2.75 per 1,000 inhabitants in 2021, according to the U.S. Census Bureau.
Which county has the lowest net international migration rate, July to June?
Allegany County, with 0 per 1,000 inhabitants in 2021.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program: net international migration rate per 1,000 residents, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Retrieved 2026-10-12.