Data / Rankings / Net domestic migration, July to June / Counties in Maryland

Counties in Maryland by net domestic migration, July to June

Frederick County had the highest net domestic migration, July to June of 24 counties in 2018, at 3,216. Montgomery County had the lowest, at -11,041. The median was 124 and the figure for Maryland was -24,238. Source: the U.S. Census Bureau.

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Highest3,216Frederick County
Lowest-11,041Montgomery County
Median12424 counties
Maryland-24,238History

Map of counties, 2018

Allegany County: -164 personsAnne Arundel County: 1,689 personsBaltimore County: -3,737 personsCalvert County: 440 personsCaroline County: 128 personsCarroll County: 676 personsCecil County: 119 personsCharles County: 1,373 personsDorchester County: -206 personsFrederick County: 3,216 personsGarrett County: -18 personsHarford County: 1,330 personsHoward County: 953 personsKent County: 84 personsMontgomery County: -11,041 personsPrince George's County: -10,030 personsQueen Anne's County: 499 personsSt. Mary's County: -249 personsSomerset County: -268 personsTalbot County: 53 personsWashington County: 232 personsWicomico County: 401 personsWorcester County: 431 personsBaltimore city: -10,149 persons
  • Under -5,800
  • -5,800 to -200
  • -200 to 0
  • 0 to 300
  • 300 to 800
  • 800 and over
persons, 2018. Red areas are below zero and blue areas above it. Source: U.S. Census Bureau, Population Estimates Program: net domestic migration, 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. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2018

Frederick County: 3,216 personsFrederick County3,216Anne Arundel County: 1,689 personsAnne Arundel County1,689Charles County: 1,373 personsCharles County1,373Harford County: 1,330 personsHarford County1,330Howard County: 953 personsHoward County953Carroll County: 676 personsCarroll County676Queen Anne's County: 499 personsQueen Anne's County499Calvert County: 440 personsCalvert County440Worcester County: 431 personsWorcester County431Wicomico County: 401 personsWicomico County401Washington County: 232 personsWashington County232Caroline County: 128 personsCaroline County128Cecil County: 119 personsCecil County119Kent County: 84 personsKent County84Talbot County: 53 personsTalbot County53Garrett County: -18 personsGarrett County-18Allegany County: -164 personsAllegany County-164Dorchester County: -206 personsDorchester County-206St. Mary's County: -249 personsSt. Mary's County-249Somerset County: -268 personsSomerset County-268Baltimore County: -3,737 personsBaltimore County-3,737Prince George's County: -10,030 personsPrince George's County-10,030Baltimore city: -10,149 personsBaltimore city-10,149Montgomery County: -11,041 personsMontgomery County-11,041Frederick County: 3,216 personsFrederick County3,216Anne Arundel County: 1,689 personsAnne Arundel County1,689Charles County: 1,373 personsCharles County1,373Harford County: 1,330 personsHarford County1,330Howard County: 953 personsHoward County953Carroll County: 676 personsCarroll County676Queen Anne's County: 499 personsQueen Anne's County499Calvert County: 440 personsCalvert County440Worcester County: 431 personsWorcester County431Wicomico County: 401 personsWicomico County401Washington County: 232 personsWashington County232Caroline County: 128 personsCaroline County128Cecil County: 119 personsCecil County119Kent County: 84 personsKent County84Talbot County: 53 personsTalbot County53Garrett County: -18 personsGarrett County-18Allegany County: -164 personsAllegany County-164Dorchester County: -206 personsDorchester County-206St. Mary's County: -249 personsSt. Mary's County-249Somerset County: -268 personsSomerset County-268Baltimore County: -3,737 personsBaltimore County-3,737Prince George's County: -10,030 personsPrince George's County-10,030Baltimore city: -10,149 personsBaltimore city-10,149Montgomery County: -11,041 personsMontgomery County-11,041
persons. Source: U.S. Census Bureau, Population Estimates Program: net domestic migration, 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.

Full ranking

RankCounties2018
persons		Change on 2017
1Frederick County Estimated3,216+45.6%
2Anne Arundel County Estimated1,689+119.6%
3Charles County Estimated1,373+1.3%
4Harford County Estimated1,330+52%
5Howard County Estimated953+41.2%
6Carroll County Estimated676+69%
7Queen Anne's County Estimated499+13.7%
8Calvert County Estimated440+243.8%
9Worcester County Estimated431+16.5%
10Wicomico County Estimated401+220.1%
11Washington County Estimated232-26.1%
12Caroline County Estimated128-27.7%
13Cecil County Estimated119+141.6%
14Kent County Estimated84+166.1%
15Talbot County Estimated53+562.5%
16Garrett County Estimated-18+75%
17Allegany County Estimated-164+65%
18Dorchester County Estimated-206-68.9%
19St. Mary's County Estimated-249-334.9%
20Somerset County Estimated-268-525.4%
21Baltimore County Estimated-3,737+3.5%
22Prince George's County Estimated-10,030+0.2%
23Baltimore city Estimated-10,149-9.8%
24Montgomery County Estimated-11,041-49.1%

Other periods

About this ranking

Estimated moves into an area from elsewhere in the same country minus moves out to the rest of the country, from July 1 of the previous year through June 30 of the reported year.

More on how it is measured
  • United States: states and counties.
  • Canada: provinces and territories, net interprovincial migration (Statistics Canada).
  • United Kingdom: local authorities, counting moves between any two UK local authorities, including across the borders of England, Wales, Scotland and Northern Ireland (ONS internal migration).
  • A negative value means more people left than arrived.

Sums to zero, or close to it, for each country 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, 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

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program: net domestic migration, 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, July to June, 2018) [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, 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, July to June, 2018. 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-july-june/maryland-counties?period=2018. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program: net domestic migration, 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, July to June, 2018. 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-july-june/maryland-counties?period=2018.

Harvard

U.S. Census Bureau (2026) Population Estimates Program: net domestic migration, 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, July to June, 2018 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/net-domestic-migration-july-june/maryland-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maryland_by_2018,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program: net domestic migration, 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, July to June, 2018}},
  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-july-june/maryland-counties?period=2018. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration, 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, 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, July to June, 2018
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-july-june/maryland-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/maryland-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration, 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  -
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Questions

Which county has the highest net domestic migration, July to June?

Frederick County, with 3,216 in 2018, according to the U.S. Census Bureau.

Which county has the lowest net domestic migration, July to June?

Montgomery County, with -11,041 in 2018.

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, 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.

Net domestic migration, July to June: other rankings

Counties in Maryland: more rankings