Counties in Maryland by net domestic migration rate, July to June
Frederick County had the highest net domestic migration rate, July to June of 24 counties in 2021, at 24.08 per 1,000 inhabitants. Prince George's County had the lowest, at -15.04 per 1,000 inhabitants. The median was 3.23 per 1,000 inhabitants and the figure for Maryland was -3.53 per 1,000 inhabitants. Source: the U.S. Census Bureau.
Map of counties, 2021
- Under -12
- -12 to -5.1
- -5.1 to 0
- 0 to 3.3
- 3.3 to 11
- 11 and over
All counties, 2021
Full ranking
| Rank | Counties | 2021 | Change on 2020 |
|---|---|---|---|
| 1 | Frederick County Estimated | 24.08 | +11.92 pts |
| 2 | Worcester County Estimated | 22.83 | +14.1 pts |
| 3 | Queen Anne's County Estimated | 16.64 | +7.07 pts |
| 4 | Kent County Estimated | 14.6 | +17.97 pts |
| 5 | Calvert County Estimated | 12.63 | +8.96 pts |
| 6 | Talbot County Estimated | 11.62 | +11.94 pts |
| 7 | Charles County Estimated | 8.93 | +8.63 pts |
| 8 | Harford County Estimated | 7.05 | +3.95 pts |
| 9 | Carroll County Estimated | 6.84 | +5.26 pts |
| 10 | Dorchester County Estimated | 4.18 | +3.27 pts |
| 11 | Garrett County Estimated | 3.3 | +6.1 pts |
| 12 | Caroline County Estimated | 3.3 | +6.55 pts |
| 13 | Cecil County Estimated | 3.17 | +0.74 pts |
| 14 | Wicomico County Estimated | 2.62 | +5.74 pts |
| 15 | Howard County Estimated | 1.53 | +0.75 pts |
| 16 | Allegany County Estimated | 1.22 | +4.43 pts |
| 17 | St. Mary's County Estimated | 0.52 | -3.53 pts |
| 18 | Anne Arundel County Estimated | -0.63 | -1.97 pts |
| 19 | Washington County Estimated | -0.67 | -0.32 pts |
| 20 | Baltimore County Estimated | -5.06 | +0.39 pts |
| 21 | Montgomery County Estimated | -11.48 | -2.86 pts |
| 22 | Baltimore city Estimated | -11.75 | +4.71 pts |
| 23 | Somerset County Estimated | -13.73 | -9.5 pts |
| 24 | Prince George's County Estimated | -15.04 | -4.64 pts |
Other periods
About this ranking
Net domestic migration into a US state or county 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.
Sums to zero for the United States as a whole, so there is no national value.
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 domestic migration rate per 1,000 residents, states and counties, 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 domestic migration rate per 1,000 residents, states and counties, 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 domestic 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 domestic migration rate per 1,000 residents, states and counties, 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 domestic 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-domestic-migration-rate-july-june/maryland-counties?period=2021. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2026. Population Estimates Program: net domestic migration rate per 1,000 residents, states and counties, 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 domestic 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-domestic-migration-rate-july-june/maryland-counties?period=2021.
Harvard
U.S. Census Bureau (2026) Population Estimates Program: net domestic migration rate per 1,000 residents, states and counties, 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 domestic 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-domestic-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 domestic migration rate per 1,000 residents, states and counties, 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 domestic 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-domestic-migration-rate-july-june/maryland-counties?period=2021. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration rate per 1,000 residents, states and counties, 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 domestic migration rate per 1,000 residents, states and counties, 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 domestic 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-domestic-migration-rate-july-june/maryland-counties?period=2021
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/net-domestic-migration-rate-july-june/maryland-counties?period=2021.
N1 - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration rate per 1,000 residents, states and counties, 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 domestic migration rate, July to June using official data, and cite the source.
rank_places {"indicator":"net_domestic_migration_rate_july_june","level":"province","within":"Maryland","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=net_domestic_migration_rate_july_june&level=province&within=Maryland&limit=10Questions
Which county has the highest net domestic migration rate, July to June?
Frederick County, with 24.08 per 1,000 inhabitants in 2021, according to the U.S. Census Bureau.
Which county has the lowest net domestic migration rate, July to June?
Prince George's County, with -15.04 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 domestic migration rate per 1,000 residents, states and counties, 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.